./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector-regression/signextension2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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 ../sv-benchmarks/c/bitvector-regression/signextension2-2.c -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 f55631880498cb5413deabbfbce35cfd825fe7b4c570de963a68b466888b738a --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 10:53:14,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 10:53:14,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 10:53:14,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 10:53:14,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 10:53:14,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 10:53:14,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 10:53:14,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 10:53:14,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 10:53:14,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 10:53:14,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 10:53:14,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 10:53:14,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 10:53:14,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 10:53:14,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 10:53:14,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 10:53:14,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 10:53:14,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 10:53:14,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 10:53:14,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 10:53:14,449 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 10:53:14,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 10:53:14,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 10:53:14,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 10:53:14,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 10:53:14,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 10:53:14,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 10:53:14,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 10:53:14,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 10:53:14,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 10:53:14,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 10:53:14,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 10:53:14,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 10:53:14,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 10:53:14,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 10:53:14,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 10:53:14,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 10:53:14,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 10:53:14,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 10:53:14,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 10:53:14,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 10:53:14,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 10:53:14,463 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 10:53:14,487 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 10:53:14,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 10:53:14,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 10:53:14,488 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 10:53:14,489 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 10:53:14,489 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 10:53:14,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 10:53:14,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 10:53:14,490 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 10:53:14,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 10:53:14,490 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 10:53:14,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 10:53:14,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 10:53:14,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 10:53:14,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 10:53:14,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 10:53:14,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 10:53:14,492 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 10:53:14,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 10:53:14,492 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 10:53:14,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 10:53:14,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 10:53:14,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 10:53:14,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 10:53:14,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 10:53:14,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 10:53:14,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 10:53:14,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 10:53:14,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 10:53:14,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 10:53:14,494 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 10:53:14,494 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 10:53:14,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 10:53:14,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f55631880498cb5413deabbfbce35cfd825fe7b4c570de963a68b466888b738a [2022-07-19 10:53:14,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 10:53:14,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 10:53:14,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 10:53:14,704 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 10:53:14,705 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 10:53:14,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/signextension2-2.c [2022-07-19 10:53:14,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67707965/3103f7d9d0b445f6bc0b8eefefdcd313/FLAGfdb2227d0 [2022-07-19 10:53:15,099 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 10:53:15,100 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/signextension2-2.c [2022-07-19 10:53:15,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67707965/3103f7d9d0b445f6bc0b8eefefdcd313/FLAGfdb2227d0 [2022-07-19 10:53:15,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67707965/3103f7d9d0b445f6bc0b8eefefdcd313 [2022-07-19 10:53:15,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 10:53:15,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 10:53:15,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 10:53:15,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 10:53:15,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 10:53:15,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:53:15" (1/1) ... [2022-07-19 10:53:15,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36722a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:15, skipping insertion in model container [2022-07-19 10:53:15,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:53:15" (1/1) ... [2022-07-19 10:53:15,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 10:53:15,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 10:53:15,260 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/signextension2-2.c[589,602] [2022-07-19 10:53:15,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 10:53:15,269 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 10:53:15,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/signextension2-2.c[589,602] [2022-07-19 10:53:15,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 10:53:15,293 INFO L208 MainTranslator]: Completed translation [2022-07-19 10:53:15,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:15 WrapperNode [2022-07-19 10:53:15,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 10:53:15,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 10:53:15,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 10:53:15,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 10:53:15,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:15" (1/1) ... [2022-07-19 10:53:15,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:15" (1/1) ... [2022-07-19 10:53:15,323 INFO L137 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-07-19 10:53:15,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 10:53:15,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 10:53:15,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 10:53:15,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 10:53:15,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:15" (1/1) ... [2022-07-19 10:53:15,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:15" (1/1) ... [2022-07-19 10:53:15,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:15" (1/1) ... [2022-07-19 10:53:15,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:15" (1/1) ... [2022-07-19 10:53:15,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:15" (1/1) ... [2022-07-19 10:53:15,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:15" (1/1) ... [2022-07-19 10:53:15,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:15" (1/1) ... [2022-07-19 10:53:15,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 10:53:15,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 10:53:15,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 10:53:15,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 10:53:15,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:15" (1/1) ... [2022-07-19 10:53:15,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 10:53:15,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 10:53:15,371 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) [2022-07-19 10:53:15,376 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 [2022-07-19 10:53:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 10:53:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 10:53:15,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 10:53:15,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 10:53:15,436 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 10:53:15,437 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 10:53:15,494 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 10:53:15,498 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 10:53:15,498 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 10:53:15,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:53:15 BoogieIcfgContainer [2022-07-19 10:53:15,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 10:53:15,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 10:53:15,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 10:53:15,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 10:53:15,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:53:15" (1/3) ... [2022-07-19 10:53:15,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104b17bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:53:15, skipping insertion in model container [2022-07-19 10:53:15,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:15" (2/3) ... [2022-07-19 10:53:15,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104b17bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:53:15, skipping insertion in model container [2022-07-19 10:53:15,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:53:15" (3/3) ... [2022-07-19 10:53:15,507 INFO L111 eAbstractionObserver]: Analyzing ICFG signextension2-2.c [2022-07-19 10:53:15,516 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 10:53:15,517 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 10:53:15,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 10:53:15,557 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@271c7e61, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7366f53a [2022-07-19 10:53:15,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 10:53:15,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:53:15,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-19 10:53:15,573 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:53:15,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-19 10:53:15,574 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:53:15,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:53:15,580 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2022-07-19 10:53:15,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:53:15,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031924645] [2022-07-19 10:53:15,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:53:15,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:53:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 10:53:15,674 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 10:53:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 10:53:15,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 10:53:15,708 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 10:53:15,710 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 10:53:15,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 10:53:15,714 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-19 10:53:15,718 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 10:53:15,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:53:15 BoogieIcfgContainer [2022-07-19 10:53:15,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 10:53:15,732 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 10:53:15,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 10:53:15,732 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 10:53:15,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:53:15" (3/4) ... [2022-07-19 10:53:15,734 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 10:53:15,763 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 10:53:15,764 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 10:53:15,767 INFO L158 Benchmark]: Toolchain (without parser) took 638.79ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 75.9MB in the beginning and 75.1MB in the end (delta: 747.9kB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2022-07-19 10:53:15,770 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory was 61.3MB in the beginning and 61.2MB in the end (delta: 47.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 10:53:15,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.03ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 75.7MB in the beginning and 101.6MB in the end (delta: -25.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 10:53:15,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.08ms. Allocated memory is still 125.8MB. Free memory was 101.6MB in the beginning and 100.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 10:53:15,771 INFO L158 Benchmark]: Boogie Preprocessor took 20.31ms. Allocated memory is still 125.8MB. Free memory was 100.3MB in the beginning and 99.5MB in the end (delta: 823.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 10:53:15,772 INFO L158 Benchmark]: RCFGBuilder took 153.86ms. Allocated memory is still 125.8MB. Free memory was 99.5MB in the beginning and 91.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 10:53:15,772 INFO L158 Benchmark]: TraceAbstraction took 228.82ms. Allocated memory is still 125.8MB. Free memory was 90.7MB in the beginning and 76.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 10:53:15,773 INFO L158 Benchmark]: Witness Printer took 31.85ms. Allocated memory is still 125.8MB. Free memory was 76.8MB in the beginning and 75.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 10:53:15,775 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 104.9MB. Free memory was 61.3MB in the beginning and 61.2MB in the end (delta: 47.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 168.03ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 75.7MB in the beginning and 101.6MB in the end (delta: -25.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.08ms. Allocated memory is still 125.8MB. Free memory was 101.6MB in the beginning and 100.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.31ms. Allocated memory is still 125.8MB. Free memory was 100.3MB in the beginning and 99.5MB in the end (delta: 823.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 153.86ms. Allocated memory is still 125.8MB. Free memory was 99.5MB in the beginning and 91.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 228.82ms. Allocated memory is still 125.8MB. Free memory was 90.7MB in the beginning and 76.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 31.85ms. Allocated memory is still 125.8MB. Free memory was 76.8MB in the beginning and 75.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6] unsigned int allOne = -1; [L8] int castToInt = allOne; [L9] long castToLong = allOne; [L10] long castToLong2 = castToInt; [L11] unsigned long castToULong = allOne; VAL [allOne=4294967295, castToInt=-1, castToLong=-1, castToLong2=-1, castToULong=4294967295] [L13-L14] COND TRUE castToInt == -1 && castToLong == 4294967295UL && castToLong2 == -1 && castToULong == 4294967295UL VAL [allOne=4294967295, castToInt=-1, castToLong=-1, castToLong2=-1, castToULong=4294967295] [L19] reach_error() VAL [allOne=4294967295, castToInt=-1, castToLong=-1, castToLong2=-1, castToULong=4294967295] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-19 10:53:15,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE