./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stack_longest-2.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations DEFORE --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/pthread/stack_longest-2.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 5773bc320dd9dee5d943610df8c4ec3040864edddf388dd42a51d37167245e47 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations DEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 22:19:33,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 22:19:33,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 22:19:33,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 22:19:33,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 22:19:33,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 22:19:33,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 22:19:33,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 22:19:33,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 22:19:33,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 22:19:33,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 22:19:33,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 22:19:33,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 22:19:33,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 22:19:33,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 22:19:33,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 22:19:33,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 22:19:33,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 22:19:33,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 22:19:33,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 22:19:33,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 22:19:33,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 22:19:33,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 22:19:33,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 22:19:33,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 22:19:33,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 22:19:33,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 22:19:33,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 22:19:33,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 22:19:33,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 22:19:33,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 22:19:33,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 22:19:33,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 22:19:33,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 22:19:33,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 22:19:33,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 22:19:33,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 22:19:33,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 22:19:33,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 22:19:33,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 22:19:33,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 22:19:33,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 22:19:33,180 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 22:19:33,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 22:19:33,181 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 22:19:33,181 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 22:19:33,182 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 22:19:33,182 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 22:19:33,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 22:19:33,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 22:19:33,183 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 22:19:33,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 22:19:33,184 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 22:19:33,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 22:19:33,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 22:19:33,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 22:19:33,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 22:19:33,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 22:19:33,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 22:19:33,186 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 22:19:33,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 22:19:33,186 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 22:19:33,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 22:19:33,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 22:19:33,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 22:19:33,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 22:19:33,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 22:19:33,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 22:19:33,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 22:19:33,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 22:19:33,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 22:19:33,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 22:19:33,188 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 22:19:33,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 22:19:33,189 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 22:19:33,189 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 22:19:33,189 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 22:19:33,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5773bc320dd9dee5d943610df8c4ec3040864edddf388dd42a51d37167245e47 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> DEFORE [2023-08-30 22:19:33,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 22:19:33,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 22:19:33,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 22:19:33,505 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 22:19:33,508 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 22:19:33,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-2.i [2023-08-30 22:19:34,563 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 22:19:34,814 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 22:19:34,815 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-2.i [2023-08-30 22:19:34,825 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3878c9f1b/9b2757f56ce94921bd3baf721e838d18/FLAG7a3ec21c0 [2023-08-30 22:19:34,839 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3878c9f1b/9b2757f56ce94921bd3baf721e838d18 [2023-08-30 22:19:34,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 22:19:34,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 22:19:34,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 22:19:34,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 22:19:34,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 22:19:34,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:19:34" (1/1) ... [2023-08-30 22:19:34,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3429d3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:34, skipping insertion in model container [2023-08-30 22:19:34,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:19:34" (1/1) ... [2023-08-30 22:19:34,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 22:19:34,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 22:19:35,250 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-2.i[41530,41543] [2023-08-30 22:19:35,279 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 22:19:35,289 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 22:19:35,320 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-2.i[41530,41543] [2023-08-30 22:19:35,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 22:19:35,385 INFO L208 MainTranslator]: Completed translation [2023-08-30 22:19:35,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:35 WrapperNode [2023-08-30 22:19:35,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 22:19:35,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 22:19:35,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 22:19:35,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 22:19:35,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:35" (1/1) ... [2023-08-30 22:19:35,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:35" (1/1) ... [2023-08-30 22:19:35,440 INFO L138 Inliner]: procedures = 277, calls = 38, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 149 [2023-08-30 22:19:35,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 22:19:35,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 22:19:35,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 22:19:35,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 22:19:35,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:35" (1/1) ... [2023-08-30 22:19:35,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:35" (1/1) ... [2023-08-30 22:19:35,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:35" (1/1) ... [2023-08-30 22:19:35,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:35" (1/1) ... [2023-08-30 22:19:35,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:35" (1/1) ... [2023-08-30 22:19:35,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:35" (1/1) ... [2023-08-30 22:19:35,465 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:35" (1/1) ... [2023-08-30 22:19:35,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:35" (1/1) ... [2023-08-30 22:19:35,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 22:19:35,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 22:19:35,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 22:19:35,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 22:19:35,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:35" (1/1) ... [2023-08-30 22:19:35,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 22:19:35,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 22:19:35,518 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 22:19:35,530 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 22:19:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-30 22:19:35,556 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-30 22:19:35,556 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-30 22:19:35,556 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-30 22:19:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 22:19:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 22:19:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 22:19:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 22:19:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 22:19:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 22:19:35,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 22:19:35,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 22:19:35,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 22:19:35,559 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 22:19:35,766 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 22:19:35,768 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 22:19:35,992 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 22:19:35,999 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 22:19:35,999 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-30 22:19:36,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:19:36 BoogieIcfgContainer [2023-08-30 22:19:36,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 22:19:36,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 22:19:36,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 22:19:36,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 22:19:36,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:19:34" (1/3) ... [2023-08-30 22:19:36,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b4c4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:19:36, skipping insertion in model container [2023-08-30 22:19:36,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:35" (2/3) ... [2023-08-30 22:19:36,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42b4c4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:19:36, skipping insertion in model container [2023-08-30 22:19:36,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:19:36" (3/3) ... [2023-08-30 22:19:36,014 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longest-2.i [2023-08-30 22:19:36,019 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 22:19:36,025 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 22:19:36,025 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 22:19:36,025 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 22:19:36,109 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 22:19:36,114 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE at java.base/java.lang.Enum.valueOf(Enum.java:240) at de.uni_freiburg.informatik.ultimate.core.preferences.RcpPreferenceProvider.getEnum(RcpPreferenceProvider.java:117) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TAPreferences.insufficientThreadErrorsVsProgramErrors(TAPreferences.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.partitionErrorLocations(TraceAbstractionStarter.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-08-30 22:19:36,118 INFO L158 Benchmark]: Toolchain (without parser) took 1275.21ms. Allocated memory is still 71.3MB. Free memory was 41.5MB in the beginning and 30.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-08-30 22:19:36,119 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 34.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 22:19:36,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 542.56ms. Allocated memory is still 71.3MB. Free memory was 41.3MB in the beginning and 45.9MB in the end (delta: -4.6MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-08-30 22:19:36,120 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.72ms. Allocated memory is still 71.3MB. Free memory was 45.6MB in the beginning and 43.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 22:19:36,120 INFO L158 Benchmark]: Boogie Preprocessor took 25.02ms. Allocated memory is still 71.3MB. Free memory was 42.9MB in the beginning and 41.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 22:19:36,121 INFO L158 Benchmark]: RCFGBuilder took 531.64ms. Allocated memory is still 71.3MB. Free memory was 41.2MB in the beginning and 41.0MB in the end (delta: 128.0kB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2023-08-30 22:19:36,121 INFO L158 Benchmark]: TraceAbstraction took 108.34ms. Allocated memory is still 71.3MB. Free memory was 40.2MB in the beginning and 30.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 22:19:36,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 34.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 542.56ms. Allocated memory is still 71.3MB. Free memory was 41.3MB in the beginning and 45.9MB in the end (delta: -4.6MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.72ms. Allocated memory is still 71.3MB. Free memory was 45.6MB in the beginning and 43.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.02ms. Allocated memory is still 71.3MB. Free memory was 42.9MB in the beginning and 41.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 531.64ms. Allocated memory is still 71.3MB. Free memory was 41.2MB in the beginning and 41.0MB in the end (delta: 128.0kB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * TraceAbstraction took 108.34ms. Allocated memory is still 71.3MB. Free memory was 40.2MB in the beginning and 30.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE: java.base/java.lang.Enum.valueOf(Enum.java:240) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-08-30 22:19:36,146 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/pthread/stack_longest-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 5773bc320dd9dee5d943610df8c4ec3040864edddf388dd42a51d37167245e47 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations DEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 22:19:38,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 22:19:38,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 22:19:38,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 22:19:38,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 22:19:38,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 22:19:38,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 22:19:38,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 22:19:38,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 22:19:38,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 22:19:38,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 22:19:38,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 22:19:38,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 22:19:38,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 22:19:38,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 22:19:38,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 22:19:38,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 22:19:38,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 22:19:38,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 22:19:38,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 22:19:38,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 22:19:38,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 22:19:38,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 22:19:38,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 22:19:38,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 22:19:38,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 22:19:38,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 22:19:38,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 22:19:38,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 22:19:38,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 22:19:38,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 22:19:38,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 22:19:38,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 22:19:38,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 22:19:38,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 22:19:38,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 22:19:38,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 22:19:38,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 22:19:38,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 22:19:38,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 22:19:38,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 22:19:38,170 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-08-30 22:19:38,193 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 22:19:38,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 22:19:38,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 22:19:38,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 22:19:38,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 22:19:38,195 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 22:19:38,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 22:19:38,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 22:19:38,196 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 22:19:38,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 22:19:38,196 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 22:19:38,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 22:19:38,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 22:19:38,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 22:19:38,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 22:19:38,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 22:19:38,197 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 22:19:38,198 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 22:19:38,198 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 22:19:38,198 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 22:19:38,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 22:19:38,198 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 22:19:38,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 22:19:38,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 22:19:38,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 22:19:38,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 22:19:38,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 22:19:38,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 22:19:38,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 22:19:38,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 22:19:38,200 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 22:19:38,200 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 22:19:38,200 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 22:19:38,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 22:19:38,201 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 22:19:38,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 22:19:38,201 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 22:19:38,201 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 22:19:38,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5773bc320dd9dee5d943610df8c4ec3040864edddf388dd42a51d37167245e47 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> DEFORE [2023-08-30 22:19:38,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 22:19:38,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 22:19:38,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 22:19:38,530 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 22:19:38,530 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 22:19:38,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-2.i [2023-08-30 22:19:39,765 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 22:19:40,053 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 22:19:40,053 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-2.i [2023-08-30 22:19:40,073 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a463dbf/e621a4a277cc40a4abefd2cd77d20c84/FLAG9edadb2bf [2023-08-30 22:19:40,098 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a463dbf/e621a4a277cc40a4abefd2cd77d20c84 [2023-08-30 22:19:40,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 22:19:40,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 22:19:40,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 22:19:40,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 22:19:40,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 22:19:40,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:19:40" (1/1) ... [2023-08-30 22:19:40,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c78f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40, skipping insertion in model container [2023-08-30 22:19:40,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:19:40" (1/1) ... [2023-08-30 22:19:40,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 22:19:40,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 22:19:40,568 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-2.i[41530,41543] [2023-08-30 22:19:40,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 22:19:40,606 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 22:19:40,655 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-2.i[41530,41543] [2023-08-30 22:19:40,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 22:19:40,735 INFO L208 MainTranslator]: Completed translation [2023-08-30 22:19:40,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40 WrapperNode [2023-08-30 22:19:40,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 22:19:40,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 22:19:40,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 22:19:40,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 22:19:40,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40" (1/1) ... [2023-08-30 22:19:40,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40" (1/1) ... [2023-08-30 22:19:40,777 INFO L138 Inliner]: procedures = 281, calls = 38, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 146 [2023-08-30 22:19:40,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 22:19:40,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 22:19:40,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 22:19:40,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 22:19:40,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40" (1/1) ... [2023-08-30 22:19:40,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40" (1/1) ... [2023-08-30 22:19:40,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40" (1/1) ... [2023-08-30 22:19:40,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40" (1/1) ... [2023-08-30 22:19:40,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40" (1/1) ... [2023-08-30 22:19:40,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40" (1/1) ... [2023-08-30 22:19:40,803 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40" (1/1) ... [2023-08-30 22:19:40,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40" (1/1) ... [2023-08-30 22:19:40,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 22:19:40,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 22:19:40,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 22:19:40,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 22:19:40,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40" (1/1) ... [2023-08-30 22:19:40,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 22:19:40,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 22:19:40,833 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 22:19:40,835 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 22:19:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-30 22:19:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-30 22:19:40,863 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-30 22:19:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-30 22:19:40,864 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-30 22:19:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 22:19:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 22:19:40,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 22:19:40,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-30 22:19:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-30 22:19:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 22:19:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 22:19:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 22:19:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 22:19:40,871 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 22:19:41,007 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 22:19:41,008 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 22:19:41,269 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 22:19:41,277 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 22:19:41,277 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-30 22:19:41,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:19:41 BoogieIcfgContainer [2023-08-30 22:19:41,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 22:19:41,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 22:19:41,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 22:19:41,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 22:19:41,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:19:40" (1/3) ... [2023-08-30 22:19:41,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6d98c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:19:41, skipping insertion in model container [2023-08-30 22:19:41,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:40" (2/3) ... [2023-08-30 22:19:41,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6d98c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:19:41, skipping insertion in model container [2023-08-30 22:19:41,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:19:41" (3/3) ... [2023-08-30 22:19:41,285 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longest-2.i [2023-08-30 22:19:41,292 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 22:19:41,299 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 22:19:41,299 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 22:19:41,299 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 22:19:41,392 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 22:19:41,397 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE at java.base/java.lang.Enum.valueOf(Enum.java:240) at de.uni_freiburg.informatik.ultimate.core.preferences.RcpPreferenceProvider.getEnum(RcpPreferenceProvider.java:117) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TAPreferences.insufficientThreadErrorsVsProgramErrors(TAPreferences.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.partitionErrorLocations(TraceAbstractionStarter.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-08-30 22:19:41,402 INFO L158 Benchmark]: Toolchain (without parser) took 1299.52ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 39.4MB in the beginning and 32.8MB in the end (delta: 6.6MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2023-08-30 22:19:41,402 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory was 28.8MB in the beginning and 28.8MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 22:19:41,403 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.03ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 39.3MB in the beginning and 50.6MB in the end (delta: -11.3MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2023-08-30 22:19:41,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.80ms. Allocated memory is still 75.5MB. Free memory was 50.6MB in the beginning and 47.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 22:19:41,404 INFO L158 Benchmark]: Boogie Preprocessor took 29.57ms. Allocated memory is still 75.5MB. Free memory was 47.9MB in the beginning and 45.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 22:19:41,404 INFO L158 Benchmark]: RCFGBuilder took 470.76ms. Allocated memory is still 75.5MB. Free memory was 45.8MB in the beginning and 45.7MB in the end (delta: 38.5kB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2023-08-30 22:19:41,405 INFO L158 Benchmark]: TraceAbstraction took 119.70ms. Allocated memory is still 75.5MB. Free memory was 45.4MB in the beginning and 32.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 22:19:41,407 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 50.3MB. Free memory was 28.8MB in the beginning and 28.8MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 632.03ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 39.3MB in the beginning and 50.6MB in the end (delta: -11.3MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.80ms. Allocated memory is still 75.5MB. Free memory was 50.6MB in the beginning and 47.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.57ms. Allocated memory is still 75.5MB. Free memory was 47.9MB in the beginning and 45.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.76ms. Allocated memory is still 75.5MB. Free memory was 45.8MB in the beginning and 45.7MB in the end (delta: 38.5kB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 119.70ms. Allocated memory is still 75.5MB. Free memory was 45.4MB in the beginning and 32.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE: java.base/java.lang.Enum.valueOf(Enum.java:240) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-08-30 22:19:41,432 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 Result: ERROR: ExceptionOrErrorResult: IllegalArgumentException: No enum constant de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.preferences.TraceAbstractionPreferenceInitializer.InsufficientError.DEFORE