./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 BEFORE --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 BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 10:42:04,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 10:42:04,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 10:42:04,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 10:42:04,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 10:42:04,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 10:42:04,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 10:42:04,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 10:42:04,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 10:42:04,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 10:42:04,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 10:42:04,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 10:42:04,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 10:42:04,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 10:42:04,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 10:42:04,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 10:42:04,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 10:42:04,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 10:42:04,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 10:42:04,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 10:42:04,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 10:42:04,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 10:42:04,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 10:42:04,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 10:42:04,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 10:42:04,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 10:42:04,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 10:42:04,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 10:42:04,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 10:42:04,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 10:42:04,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 10:42:04,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 10:42:04,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 10:42:04,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 10:42:04,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 10:42:04,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 10:42:04,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 10:42:04,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 10:42:04,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 10:42:04,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 10:42:04,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 10:42:04,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-09-01 10:42:04,651 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 10:42:04,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 10:42:04,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 10:42:04,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 10:42:04,654 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 10:42:04,654 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 10:42:04,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 10:42:04,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 10:42:04,655 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 10:42:04,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 10:42:04,656 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 10:42:04,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 10:42:04,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 10:42:04,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 10:42:04,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 10:42:04,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 10:42:04,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 10:42:04,657 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 10:42:04,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 10:42:04,657 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 10:42:04,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 10:42:04,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 10:42:04,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 10:42:04,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 10:42:04,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:42:04,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 10:42:04,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 10:42:04,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 10:42:04,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 10:42:04,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 10:42:04,659 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 10:42:04,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 10:42:04,660 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 10:42:04,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 10:42:04,660 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 10:42:04,661 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db89c87a20c604c9441b7de7f477400cd6fc4624b5ed335b5e7cd959bb73911d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 10:42:04,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 10:42:04,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 10:42:04,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 10:42:04,967 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 10:42:04,967 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 10:42:04,969 INFO L432 ainManager$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 [2023-09-01 10:42:06,073 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 10:42:06,323 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 10:42:06,324 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-09-01 10:42:06,337 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe0ed7b63/f873e55b045f4dc9a25c022382993dcc/FLAGcf2666c54 [2023-09-01 10:42:06,653 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe0ed7b63/f873e55b045f4dc9a25c022382993dcc [2023-09-01 10:42:06,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 10:42:06,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 10:42:06,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 10:42:06,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 10:42:06,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 10:42:06,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:42:06" (1/1) ... [2023-09-01 10:42:06,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d684672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:06, skipping insertion in model container [2023-09-01 10:42:06,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:42:06" (1/1) ... [2023-09-01 10:42:06,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 10:42:06,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 10:42:06,864 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] [2023-09-01 10:42:07,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:42:07,046 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 10:42:07,057 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] [2023-09-01 10:42:07,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:42:07,132 INFO L208 MainTranslator]: Completed translation [2023-09-01 10:42:07,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:07 WrapperNode [2023-09-01 10:42:07,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 10:42:07,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 10:42:07,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 10:42:07,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 10:42:07,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:07" (1/1) ... [2023-09-01 10:42:07,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:07" (1/1) ... [2023-09-01 10:42:07,192 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-09-01 10:42:07,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 10:42:07,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 10:42:07,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 10:42:07,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 10:42:07,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:07" (1/1) ... [2023-09-01 10:42:07,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:07" (1/1) ... [2023-09-01 10:42:07,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:07" (1/1) ... [2023-09-01 10:42:07,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:07" (1/1) ... [2023-09-01 10:42:07,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:07" (1/1) ... [2023-09-01 10:42:07,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:07" (1/1) ... [2023-09-01 10:42:07,230 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:07" (1/1) ... [2023-09-01 10:42:07,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:07" (1/1) ... [2023-09-01 10:42:07,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 10:42:07,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 10:42:07,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 10:42:07,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 10:42:07,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:07" (1/1) ... [2023-09-01 10:42:07,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:42:07,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 10:42:07,269 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) [2023-09-01 10:42:07,279 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 [2023-09-01 10:42:07,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 10:42:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 10:42:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 10:42:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 10:42:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 10:42:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 10:42:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 10:42:07,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 10:42:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 10:42:07,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 10:42:07,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 10:42:07,317 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 10:42:07,449 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 10:42:07,451 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 10:42:07,585 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 10:42:07,591 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 10:42:07,591 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 10:42:07,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:42:07 BoogieIcfgContainer [2023-09-01 10:42:07,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 10:42:07,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 10:42:07,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 10:42:07,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 10:42:07,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 10:42:06" (1/3) ... [2023-09-01 10:42:07,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d51fa09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:42:07, skipping insertion in model container [2023-09-01 10:42:07,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:07" (2/3) ... [2023-09-01 10:42:07,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d51fa09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:42:07, skipping insertion in model container [2023-09-01 10:42:07,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:42:07" (3/3) ... [2023-09-01 10:42:07,603 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2023-09-01 10:42:07,612 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 10:42:07,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 10:42:07,619 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-01 10:42:07,619 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 10:42:07,662 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 10:42:07,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-09-01 10:42:07,745 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-09-01 10:42:07,746 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 10:42:07,750 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. [2023-09-01 10:42:07,750 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-09-01 10:42:07,754 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-09-01 10:42:07,758 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 10:42:07,778 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-09-01 10:42:07,787 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-09-01 10:42:07,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-09-01 10:42:07,807 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-09-01 10:42:07,808 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:42:07,809 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. [2023-09-01 10:42:07,810 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-09-01 10:42:09,751 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-09-01 10:42:09,751 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-09-01 10:42:09,771 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 10:42:09,778 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;@6531efd3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 10:42:09,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-09-01 10:42:09,786 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-09-01 10:42:09,787 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:42:09,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:42:09,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 10:42:09,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-01 10:42:09,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:42:09,792 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-09-01 10:42:09,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:42:09,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377807793] [2023-09-01 10:42:09,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:42:09,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:42:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:42:09,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 10:42:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:42:10,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 10:42:10,021 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 10:42:10,022 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-09-01 10:42:10,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-09-01 10:42:10,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-09-01 10:42:10,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 10:42:10,026 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 10:42:10,035 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 10:42:10,036 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 10:42:10,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 10:42:10 BasicIcfg [2023-09-01 10:42:10,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 10:42:10,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 10:42:10,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 10:42:10,055 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 10:42:10,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:42:07" (3/4) ... [2023-09-01 10:42:10,057 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-09-01 10:42:10,100 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 10:42:10,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 10:42:10,101 INFO L158 Benchmark]: Toolchain (without parser) took 3444.01ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 67.6MB in the beginning and 78.2MB in the end (delta: -10.7MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2023-09-01 10:42:10,101 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory was 40.7MB in the beginning and 40.6MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 10:42:10,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.20ms. Allocated memory is still 88.1MB. Free memory was 67.3MB in the beginning and 48.7MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-09-01 10:42:10,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.46ms. Allocated memory is still 88.1MB. Free memory was 48.4MB in the beginning and 46.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 10:42:10,103 INFO L158 Benchmark]: Boogie Preprocessor took 45.82ms. Allocated memory is still 88.1MB. Free memory was 46.6MB in the beginning and 45.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 10:42:10,103 INFO L158 Benchmark]: RCFGBuilder took 353.33ms. Allocated memory is still 88.1MB. Free memory was 45.2MB in the beginning and 58.2MB in the end (delta: -13.1MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2023-09-01 10:42:10,103 INFO L158 Benchmark]: TraceAbstraction took 2459.40ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 57.4MB in the beginning and 80.3MB in the end (delta: -22.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 10:42:10,104 INFO L158 Benchmark]: Witness Printer took 45.25ms. Allocated memory is still 107.0MB. Free memory was 80.3MB in the beginning and 78.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 10:42:10,107 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 62.9MB. Free memory was 40.7MB in the beginning and 40.6MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.20ms. Allocated memory is still 88.1MB. Free memory was 67.3MB in the beginning and 48.7MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.46ms. Allocated memory is still 88.1MB. Free memory was 48.4MB in the beginning and 46.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.82ms. Allocated memory is still 88.1MB. Free memory was 46.6MB in the beginning and 45.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 353.33ms. Allocated memory is still 88.1MB. Free memory was 45.2MB in the beginning and 58.2MB in the end (delta: -13.1MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2459.40ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 57.4MB in the beginning and 80.3MB in the end (delta: -22.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.25ms. Allocated memory is still 107.0MB. Free memory was 80.3MB in the beginning and 78.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 47 PlacesBefore, 9 PlacesAfterwards, 44 TransitionsBefore, 5 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 42 TotalNumberOfCompositions, 188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 174, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 112, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 174, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 112, unknown conditional: 0, unknown unconditional: 112] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND 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: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s 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! [2023-09-01 10:42:10,126 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