./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations 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_2_neg.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 10:42:12,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 10:42:12,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 10:42:12,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 10:42:12,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 10:42:12,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 10:42:12,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 10:42:12,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 10:42:12,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 10:42:12,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 10:42:12,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 10:42:12,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 10:42:12,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 10:42:12,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 10:42:12,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 10:42:12,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 10:42:12,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 10:42:12,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 10:42:12,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 10:42:12,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 10:42:12,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 10:42:12,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 10:42:12,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 10:42:12,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 10:42:12,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 10:42:12,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 10:42:12,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 10:42:12,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 10:42:12,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 10:42:12,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 10:42:12,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 10:42:12,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 10:42:12,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 10:42:12,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 10:42:12,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 10:42:12,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 10:42:12,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 10:42:12,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 10:42:12,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 10:42:12,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 10:42:12,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 10:42:12,672 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-09-01 10:42:12,705 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 10:42:12,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 10:42:12,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 10:42:12,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 10:42:12,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 10:42:12,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 10:42:12,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 10:42:12,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 10:42:12,709 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 10:42:12,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 10:42:12,710 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 10:42:12,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 10:42:12,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 10:42:12,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 10:42:12,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 10:42:12,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 10:42:12,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 10:42:12,711 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 10:42:12,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 10:42:12,712 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 10:42:12,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 10:42:12,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 10:42:12,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 10:42:12,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 10:42:12,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:42:12,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 10:42:12,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 10:42:12,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 10:42:12,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 10:42:12,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 10:42:12,714 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 10:42:12,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 10:42:12,714 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 10:42:12,714 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 10:42:12,715 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 10:42:12,715 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 10:42:12,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 10:42:13,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 10:42:13,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 10:42:13,016 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 10:42:13,017 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 10:42:13,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-09-01 10:42:14,191 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 10:42:14,459 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 10:42:14,460 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-09-01 10:42:14,469 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e75598b/79751d1c787c402a9a1925f4e01fe532/FLAG0ccc6a1e6 [2023-09-01 10:42:14,483 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e75598b/79751d1c787c402a9a1925f4e01fe532 [2023-09-01 10:42:14,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 10:42:14,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 10:42:14,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 10:42:14,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 10:42:14,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 10:42:14,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59eaa650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14, skipping insertion in model container [2023-09-01 10:42:14,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 10:42:14,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 10:42:14,671 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2023-09-01 10:42:14,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:42:14,843 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 10:42:14,855 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2023-09-01 10:42:14,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:42:14,916 INFO L208 MainTranslator]: Completed translation [2023-09-01 10:42:14,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14 WrapperNode [2023-09-01 10:42:14,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 10:42:14,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 10:42:14,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 10:42:14,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 10:42:14,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,980 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-09-01 10:42:14,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 10:42:14,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 10:42:14,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 10:42:14,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 10:42:14,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:15,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:15,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:15,015 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:15,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:15,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 10:42:15,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 10:42:15,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 10:42:15,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 10:42:15,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:15,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:42:15,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 10:42:15,058 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 10:42:15,081 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 10:42:15,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 10:42:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 10:42:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 10:42:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 10:42:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 10:42:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 10:42:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 10:42:15,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 10:42:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 10:42:15,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 10:42:15,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 10:42:15,097 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 10:42:15,230 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 10:42:15,232 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 10:42:15,372 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 10:42:15,378 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 10:42:15,378 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 10:42:15,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:42:15 BoogieIcfgContainer [2023-09-01 10:42:15,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 10:42:15,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 10:42:15,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 10:42:15,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 10:42:15,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 10:42:14" (1/3) ... [2023-09-01 10:42:15,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310eb8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:42:15, skipping insertion in model container [2023-09-01 10:42:15,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (2/3) ... [2023-09-01 10:42:15,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310eb8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:42:15, skipping insertion in model container [2023-09-01 10:42:15,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:42:15" (3/3) ... [2023-09-01 10:42:15,387 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2023-09-01 10:42:15,398 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 10:42:15,406 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 10:42:15,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-01 10:42:15,406 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 10:42:15,492 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 10:42:15,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-09-01 10:42:15,600 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-09-01 10:42:15,600 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 10:42:15,605 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 10:42:15,606 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-09-01 10:42:15,609 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-09-01 10:42:15,613 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 10:42:15,628 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-09-01 10:42:15,632 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-09-01 10:42:15,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-09-01 10:42:15,654 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-09-01 10:42:15,654 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:42:15,655 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 10:42:15,656 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-09-01 10:42:17,552 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-09-01 10:42:17,552 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-09-01 10:42:17,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 10:42:17,569 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;@605a730b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 10:42:17,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-09-01 10:42:17,572 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-09-01 10:42:17,572 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:42:17,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:42:17,573 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 10:42:17,573 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 10:42:17,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:42:17,577 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-09-01 10:42:17,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:42:17,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789414793] [2023-09-01 10:42:17,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:42:17,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:42:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:42:17,750 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 10:42:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:42:17,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 10:42:17,802 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 10:42:17,803 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-09-01 10:42:17,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-09-01 10:42:17,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-09-01 10:42:17,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 10:42:17,806 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 10:42:17,821 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 10:42:17,821 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 10:42:17,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 10:42:17 BasicIcfg [2023-09-01 10:42:17,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 10:42:17,835 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 10:42:17,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 10:42:17,835 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 10:42:17,836 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:42:15" (3/4) ... [2023-09-01 10:42:17,837 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-09-01 10:42:17,865 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 10:42:17,865 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 10:42:17,866 INFO L158 Benchmark]: Toolchain (without parser) took 3379.85ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 53.2MB in the beginning and 69.9MB in the end (delta: -16.6MB). Peak memory consumption was 350.1kB. Max. memory is 16.1GB. [2023-09-01 10:42:17,866 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 10:42:17,867 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.90ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 52.7MB in the end (delta: 373.4kB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-09-01 10:42:17,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.50ms. Allocated memory is still 77.6MB. Free memory was 52.7MB in the beginning and 50.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 10:42:17,868 INFO L158 Benchmark]: Boogie Preprocessor took 43.17ms. Allocated memory is still 77.6MB. Free memory was 50.6MB in the beginning and 49.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 10:42:17,868 INFO L158 Benchmark]: RCFGBuilder took 354.49ms. Allocated memory is still 77.6MB. Free memory was 49.4MB in the beginning and 37.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-09-01 10:42:17,869 INFO L158 Benchmark]: TraceAbstraction took 2452.40ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 36.8MB in the beginning and 71.1MB in the end (delta: -34.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 10:42:17,869 INFO L158 Benchmark]: Witness Printer took 30.23ms. Allocated memory is still 98.6MB. Free memory was 71.1MB in the beginning and 69.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 10:42:17,871 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 60.8MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 429.90ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 52.7MB in the end (delta: 373.4kB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.50ms. Allocated memory is still 77.6MB. Free memory was 52.7MB in the beginning and 50.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.17ms. Allocated memory is still 77.6MB. Free memory was 50.6MB in the beginning and 49.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 354.49ms. Allocated memory is still 77.6MB. Free memory was 49.4MB in the beginning and 37.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2452.40ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 36.8MB in the beginning and 71.1MB in the end (delta: -34.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 30.23ms. Allocated memory is still 98.6MB. Free memory was 71.1MB in the beginning and 69.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 47 PlacesBefore, 9 PlacesAfterwards, 44 TransitionsBefore, 5 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 42 TotalNumberOfCompositions, 188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 174, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 112, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 174, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 112, unknown conditional: 0, unknown unconditional: 112] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 1)) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 81 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, 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, 0.1s 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 10:42:17,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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