./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread/triangular-1.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations DEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread/triangular-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b585114ab4aff9777d36c84f93f7abe0931f77338421f004296c8a8d328d3dfd --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 01:48:40,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 01:48:40,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 01:48:40,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 01:48:40,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 01:48:40,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 01:48:40,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 01:48:40,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 01:48:40,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 01:48:40,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 01:48:40,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 01:48:40,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 01:48:40,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 01:48:40,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 01:48:40,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 01:48:40,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 01:48:40,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 01:48:40,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 01:48:40,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 01:48:40,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 01:48:40,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 01:48:40,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 01:48:40,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 01:48:40,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 01:48:40,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 01:48:40,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 01:48:40,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 01:48:40,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 01:48:40,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 01:48:40,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 01:48:40,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 01:48:40,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 01:48:40,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 01:48:40,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 01:48:40,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 01:48:40,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 01:48:40,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 01:48:40,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 01:48:40,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 01:48:40,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 01:48:40,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 01:48:40,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-30 01:48:40,338 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 01:48:40,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 01:48:40,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 01:48:40,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 01:48:40,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 01:48:40,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 01:48:40,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 01:48:40,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 01:48:40,342 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 01:48:40,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 01:48:40,343 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 01:48:40,343 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 01:48:40,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 01:48:40,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 01:48:40,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 01:48:40,344 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 01:48:40,344 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 01:48:40,344 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 01:48:40,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 01:48:40,344 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 01:48:40,345 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 01:48:40,345 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 01:48:40,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 01:48:40,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 01:48:40,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 01:48:40,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 01:48:40,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 01:48:40,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 01:48:40,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 01:48:40,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 01:48:40,347 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 01:48:40,347 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 01:48:40,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 01:48:40,347 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 01:48:40,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b585114ab4aff9777d36c84f93f7abe0931f77338421f004296c8a8d328d3dfd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> DEFORE [2023-08-30 01:48:40,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 01:48:40,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 01:48:40,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 01:48:40,678 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 01:48:40,678 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 01:48:40,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/triangular-1.i [2023-08-30 01:48:41,903 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 01:48:42,152 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 01:48:42,152 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-1.i [2023-08-30 01:48:42,170 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32819b694/3d2ab40db86c47c0a8549b0d981a2e32/FLAG91575fd89 [2023-08-30 01:48:42,194 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32819b694/3d2ab40db86c47c0a8549b0d981a2e32 [2023-08-30 01:48:42,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 01:48:42,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 01:48:42,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 01:48:42,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 01:48:42,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 01:48:42,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:48:42" (1/1) ... [2023-08-30 01:48:42,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@266a494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42, skipping insertion in model container [2023-08-30 01:48:42,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:48:42" (1/1) ... [2023-08-30 01:48:42,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 01:48:42,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 01:48:42,554 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/triangular-1.i[30950,30963] [2023-08-30 01:48:42,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 01:48:42,568 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 01:48:42,622 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/triangular-1.i[30950,30963] [2023-08-30 01:48:42,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 01:48:42,664 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 01:48:42,664 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 01:48:42,670 INFO L208 MainTranslator]: Completed translation [2023-08-30 01:48:42,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42 WrapperNode [2023-08-30 01:48:42,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 01:48:42,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 01:48:42,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 01:48:42,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 01:48:42,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42" (1/1) ... [2023-08-30 01:48:42,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42" (1/1) ... [2023-08-30 01:48:42,702 INFO L138 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2023-08-30 01:48:42,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 01:48:42,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 01:48:42,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 01:48:42,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 01:48:42,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42" (1/1) ... [2023-08-30 01:48:42,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42" (1/1) ... [2023-08-30 01:48:42,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42" (1/1) ... [2023-08-30 01:48:42,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42" (1/1) ... [2023-08-30 01:48:42,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42" (1/1) ... [2023-08-30 01:48:42,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42" (1/1) ... [2023-08-30 01:48:42,722 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42" (1/1) ... [2023-08-30 01:48:42,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42" (1/1) ... [2023-08-30 01:48:42,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 01:48:42,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 01:48:42,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 01:48:42,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 01:48:42,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42" (1/1) ... [2023-08-30 01:48:42,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 01:48:42,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 01:48:42,758 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 01:48:42,772 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 01:48:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-30 01:48:42,791 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-30 01:48:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-30 01:48:42,792 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-30 01:48:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 01:48:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 01:48:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 01:48:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 01:48:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 01:48:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 01:48:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 01:48:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 01:48:42,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 01:48:42,794 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 01:48:42,918 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 01:48:42,934 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 01:48:43,094 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 01:48:43,102 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 01:48:43,103 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-30 01:48:43,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:48:43 BoogieIcfgContainer [2023-08-30 01:48:43,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 01:48:43,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 01:48:43,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 01:48:43,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 01:48:43,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:48:42" (1/3) ... [2023-08-30 01:48:43,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@174130a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:48:43, skipping insertion in model container [2023-08-30 01:48:43,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:42" (2/3) ... [2023-08-30 01:48:43,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@174130a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:48:43, skipping insertion in model container [2023-08-30 01:48:43,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:48:43" (3/3) ... [2023-08-30 01:48:43,113 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-1.i [2023-08-30 01:48:43,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 01:48:43,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 01:48:43,129 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 01:48:43,203 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 01:48:43,214 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 01:48:43,221 INFO L158 Benchmark]: Toolchain (without parser) took 1022.42ms. Allocated memory is still 79.7MB. Free memory was 55.7MB in the beginning and 31.1MB in the end (delta: 24.5MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2023-08-30 01:48:43,222 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 58.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 01:48:43,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.07ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 54.5MB in the end (delta: 1.0MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2023-08-30 01:48:43,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.83ms. Allocated memory is still 79.7MB. Free memory was 54.5MB in the beginning and 52.6MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 01:48:43,225 INFO L158 Benchmark]: Boogie Preprocessor took 21.83ms. Allocated memory is still 79.7MB. Free memory was 52.6MB in the beginning and 51.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 01:48:43,226 INFO L158 Benchmark]: RCFGBuilder took 380.53ms. Allocated memory is still 79.7MB. Free memory was 51.2MB in the beginning and 38.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 01:48:43,226 INFO L158 Benchmark]: TraceAbstraction took 111.50ms. Allocated memory is still 79.7MB. Free memory was 37.5MB in the beginning and 31.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-30 01:48:43,234 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 58.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.07ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 54.5MB in the end (delta: 1.0MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.83ms. Allocated memory is still 79.7MB. Free memory was 54.5MB in the beginning and 52.6MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.83ms. Allocated memory is still 79.7MB. Free memory was 52.6MB in the beginning and 51.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 380.53ms. Allocated memory is still 79.7MB. Free memory was 51.2MB in the beginning and 38.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 111.50ms. Allocated memory is still 79.7MB. Free memory was 37.5MB in the beginning and 31.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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 01:48:43,264 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 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/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread/triangular-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b585114ab4aff9777d36c84f93f7abe0931f77338421f004296c8a8d328d3dfd --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 01:48:45,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 01:48:45,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 01:48:45,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 01:48:45,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 01:48:45,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 01:48:45,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 01:48:45,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 01:48:45,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 01:48:45,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 01:48:45,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 01:48:45,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 01:48:45,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 01:48:45,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 01:48:45,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 01:48:45,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 01:48:45,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 01:48:45,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 01:48:45,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 01:48:45,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 01:48:45,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 01:48:45,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 01:48:45,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 01:48:45,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 01:48:45,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 01:48:45,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 01:48:45,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 01:48:45,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 01:48:45,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 01:48:45,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 01:48:45,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 01:48:45,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 01:48:45,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 01:48:45,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 01:48:45,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 01:48:45,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 01:48:45,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 01:48:45,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 01:48:45,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 01:48:45,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 01:48:45,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 01:48:45,235 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-30 01:48:45,267 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 01:48:45,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 01:48:45,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 01:48:45,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 01:48:45,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 01:48:45,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 01:48:45,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 01:48:45,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 01:48:45,271 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 01:48:45,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 01:48:45,272 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 01:48:45,272 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 01:48:45,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 01:48:45,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 01:48:45,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 01:48:45,273 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-30 01:48:45,273 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-30 01:48:45,273 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-30 01:48:45,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 01:48:45,273 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-30 01:48:45,273 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-30 01:48:45,274 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-30 01:48:45,274 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 01:48:45,274 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 01:48:45,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 01:48:45,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 01:48:45,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 01:48:45,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 01:48:45,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 01:48:45,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 01:48:45,275 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-30 01:48:45,275 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-30 01:48:45,276 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 01:48:45,276 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 01:48:45,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 01:48:45,276 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-30 01:48:45,276 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 01:48:45,277 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b585114ab4aff9777d36c84f93f7abe0931f77338421f004296c8a8d328d3dfd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> DEFORE [2023-08-30 01:48:45,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 01:48:45,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 01:48:45,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 01:48:45,607 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 01:48:45,609 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 01:48:45,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/triangular-1.i [2023-08-30 01:48:46,746 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 01:48:46,979 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 01:48:46,982 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-1.i [2023-08-30 01:48:47,000 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b599355d/0d36ece923154c618eb13519e2a8589d/FLAGde0b35115 [2023-08-30 01:48:47,011 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b599355d/0d36ece923154c618eb13519e2a8589d [2023-08-30 01:48:47,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 01:48:47,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 01:48:47,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 01:48:47,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 01:48:47,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 01:48:47,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:48:47" (1/1) ... [2023-08-30 01:48:47,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66343ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47, skipping insertion in model container [2023-08-30 01:48:47,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:48:47" (1/1) ... [2023-08-30 01:48:47,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 01:48:47,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 01:48:47,382 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/triangular-1.i[30950,30963] [2023-08-30 01:48:47,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 01:48:47,418 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 01:48:47,465 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/triangular-1.i[30950,30963] [2023-08-30 01:48:47,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 01:48:47,509 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 01:48:47,510 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 01:48:47,516 INFO L208 MainTranslator]: Completed translation [2023-08-30 01:48:47,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47 WrapperNode [2023-08-30 01:48:47,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 01:48:47,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 01:48:47,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 01:48:47,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 01:48:47,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47" (1/1) ... [2023-08-30 01:48:47,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47" (1/1) ... [2023-08-30 01:48:47,577 INFO L138 Inliner]: procedures = 172, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2023-08-30 01:48:47,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 01:48:47,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 01:48:47,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 01:48:47,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 01:48:47,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47" (1/1) ... [2023-08-30 01:48:47,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47" (1/1) ... [2023-08-30 01:48:47,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47" (1/1) ... [2023-08-30 01:48:47,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47" (1/1) ... [2023-08-30 01:48:47,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47" (1/1) ... [2023-08-30 01:48:47,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47" (1/1) ... [2023-08-30 01:48:47,621 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47" (1/1) ... [2023-08-30 01:48:47,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47" (1/1) ... [2023-08-30 01:48:47,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 01:48:47,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 01:48:47,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 01:48:47,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 01:48:47,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47" (1/1) ... [2023-08-30 01:48:47,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 01:48:47,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 01:48:47,670 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 01:48:47,693 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 01:48:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-30 01:48:47,706 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-30 01:48:47,706 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-30 01:48:47,707 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-30 01:48:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 01:48:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 01:48:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 01:48:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 01:48:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-30 01:48:47,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-08-30 01:48:47,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 01:48:47,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 01:48:47,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 01:48:47,709 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 01:48:47,912 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 01:48:47,915 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 01:48:48,177 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 01:48:48,184 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 01:48:48,184 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-30 01:48:48,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:48:48 BoogieIcfgContainer [2023-08-30 01:48:48,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 01:48:48,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 01:48:48,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 01:48:48,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 01:48:48,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:48:47" (1/3) ... [2023-08-30 01:48:48,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6915efd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:48:48, skipping insertion in model container [2023-08-30 01:48:48,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:48:47" (2/3) ... [2023-08-30 01:48:48,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6915efd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:48:48, skipping insertion in model container [2023-08-30 01:48:48,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:48:48" (3/3) ... [2023-08-30 01:48:48,196 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-1.i [2023-08-30 01:48:48,212 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 01:48:48,212 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 01:48:48,213 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 01:48:48,295 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 01:48:48,302 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 01:48:48,308 INFO L158 Benchmark]: Toolchain (without parser) took 1294.04ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 43.6MB in the beginning and 67.0MB in the end (delta: -23.4MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2023-08-30 01:48:48,309 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 73.4MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 01:48:48,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 502.76ms. Allocated memory is still 73.4MB. Free memory was 43.4MB in the beginning and 44.4MB in the end (delta: -1.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-30 01:48:48,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.16ms. Allocated memory is still 73.4MB. Free memory was 44.4MB in the beginning and 42.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 01:48:48,311 INFO L158 Benchmark]: Boogie Preprocessor took 53.06ms. Allocated memory is still 73.4MB. Free memory was 42.3MB in the beginning and 40.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 01:48:48,312 INFO L158 Benchmark]: RCFGBuilder took 555.29ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 40.5MB in the beginning and 75.4MB in the end (delta: -34.9MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2023-08-30 01:48:48,312 INFO L158 Benchmark]: TraceAbstraction took 116.54ms. Allocated memory is still 100.7MB. Free memory was 74.4MB in the beginning and 67.0MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-30 01:48:48,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 73.4MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 502.76ms. Allocated memory is still 73.4MB. Free memory was 43.4MB in the beginning and 44.4MB in the end (delta: -1.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.16ms. Allocated memory is still 73.4MB. Free memory was 44.4MB in the beginning and 42.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.06ms. Allocated memory is still 73.4MB. Free memory was 42.3MB in the beginning and 40.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.29ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 40.5MB in the beginning and 75.4MB in the end (delta: -34.9MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * TraceAbstraction took 116.54ms. Allocated memory is still 100.7MB. Free memory was 74.4MB in the beginning and 67.0MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. 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 01:48:48,348 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