./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/num_conversion_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c3fed411 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/num_conversion_2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e0da033eb6b5a3b4db0394198751cf880534ee28b64f0bd7b196bfba1d785e1 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 15:14:37,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 15:14:37,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 15:14:37,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 15:14:37,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 15:14:37,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 15:14:37,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 15:14:37,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 15:14:37,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 15:14:37,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 15:14:37,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 15:14:37,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 15:14:37,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 15:14:37,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 15:14:37,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 15:14:37,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 15:14:37,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 15:14:37,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 15:14:37,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 15:14:37,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 15:14:37,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 15:14:37,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 15:14:37,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 15:14:37,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 15:14:37,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 15:14:37,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 15:14:37,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 15:14:37,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 15:14:37,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 15:14:37,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 15:14:37,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 15:14:37,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 15:14:37,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 15:14:37,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 15:14:37,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 15:14:37,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 15:14:37,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 15:14:37,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 15:14:37,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 15:14:37,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 15:14:37,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 15:14:37,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-19 15:14:37,331 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 15:14:37,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 15:14:37,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 15:14:37,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 15:14:37,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-19 15:14:37,334 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-19 15:14:37,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 15:14:37,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 15:14:37,335 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 15:14:37,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 15:14:37,335 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 15:14:37,336 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 15:14:37,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 15:14:37,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 15:14:37,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 15:14:37,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-19 15:14:37,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-19 15:14:37,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-19 15:14:37,337 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-19 15:14:37,337 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 15:14:37,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 15:14:37,337 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 15:14:37,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-19 15:14:37,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 15:14:37,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 15:14:37,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-19 15:14:37,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:14:37,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 15:14:37,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-19 15:14:37,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-19 15:14:37,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 15:14:37,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-19 15:14:37,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-19 15:14:37,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 15:14:37,339 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e0da033eb6b5a3b4db0394198751cf880534ee28b64f0bd7b196bfba1d785e1 [2021-12-19 15:14:37,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 15:14:37,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 15:14:37,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 15:14:37,539 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 15:14:37,539 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 15:14:37,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/num_conversion_2.c [2021-12-19 15:14:37,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a89e3d593/63db61f1d77b4e2a850263449b391228/FLAGdd17941eb [2021-12-19 15:14:37,889 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 15:14:37,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/num_conversion_2.c [2021-12-19 15:14:37,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a89e3d593/63db61f1d77b4e2a850263449b391228/FLAGdd17941eb [2021-12-19 15:14:38,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a89e3d593/63db61f1d77b4e2a850263449b391228 [2021-12-19 15:14:38,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 15:14:38,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 15:14:38,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 15:14:38,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 15:14:38,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 15:14:38,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:14:38" (1/1) ... [2021-12-19 15:14:38,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8d8643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:14:38, skipping insertion in model container [2021-12-19 15:14:38,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:14:38" (1/1) ... [2021-12-19 15:14:38,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 15:14:38,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 15:14:38,438 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/num_conversion_2.c[685,698] [2021-12-19 15:14:38,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:14:38,454 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 15:14:38,461 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/num_conversion_2.c[685,698] [2021-12-19 15:14:38,464 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:14:38,471 INFO L208 MainTranslator]: Completed translation [2021-12-19 15:14:38,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:14:38 WrapperNode [2021-12-19 15:14:38,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 15:14:38,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 15:14:38,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 15:14:38,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 15:14:38,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:14:38" (1/1) ... [2021-12-19 15:14:38,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:14:38" (1/1) ... [2021-12-19 15:14:38,491 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2021-12-19 15:14:38,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 15:14:38,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 15:14:38,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 15:14:38,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 15:14:38,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:14:38" (1/1) ... [2021-12-19 15:14:38,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:14:38" (1/1) ... [2021-12-19 15:14:38,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:14:38" (1/1) ... [2021-12-19 15:14:38,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:14:38" (1/1) ... [2021-12-19 15:14:38,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:14:38" (1/1) ... [2021-12-19 15:14:38,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:14:38" (1/1) ... [2021-12-19 15:14:38,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:14:38" (1/1) ... [2021-12-19 15:14:38,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 15:14:38,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 15:14:38,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 15:14:38,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 15:14:38,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:14:38" (1/1) ... [2021-12-19 15:14:38,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:14:38,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:14:38,524 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) [2021-12-19 15:14:38,540 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 [2021-12-19 15:14:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 15:14:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 15:14:38,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 15:14:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 15:14:38,602 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 15:14:38,604 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 15:14:38,665 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 15:14:38,669 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 15:14:38,669 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 15:14:38,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:14:38 BoogieIcfgContainer [2021-12-19 15:14:38,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 15:14:38,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-19 15:14:38,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-19 15:14:38,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-19 15:14:38,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:14:38" (1/3) ... [2021-12-19 15:14:38,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b7f000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:14:38, skipping insertion in model container [2021-12-19 15:14:38,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:14:38" (2/3) ... [2021-12-19 15:14:38,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b7f000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:14:38, skipping insertion in model container [2021-12-19 15:14:38,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:14:38" (3/3) ... [2021-12-19 15:14:38,676 INFO L111 eAbstractionObserver]: Analyzing ICFG num_conversion_2.c [2021-12-19 15:14:38,680 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-19 15:14:38,680 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-19 15:14:38,713 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-19 15:14:38,726 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-19 15:14:38,726 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-19 15:14:38,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.625) internal successors, (26), 22 states have internal predecessors, (26), 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) [2021-12-19 15:14:38,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-19 15:14:38,739 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:14:38,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-19 15:14:38,740 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-19 15:14:38,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:14:38,744 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2021-12-19 15:14:38,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:14:38,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859945885] [2021-12-19 15:14:38,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:14:38,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:14:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 15:14:38,807 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 15:14:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 15:14:38,826 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 15:14:38,827 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-19 15:14:38,829 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2021-12-19 15:14:38,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2021-12-19 15:14:38,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2021-12-19 15:14:38,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2021-12-19 15:14:38,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2021-12-19 15:14:38,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2021-12-19 15:14:38,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-19 15:14:38,838 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-19 15:14:38,840 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-19 15:14:38,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:14:38 BoogieIcfgContainer [2021-12-19 15:14:38,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-19 15:14:38,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 15:14:38,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 15:14:38,866 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 15:14:38,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:14:38" (3/4) ... [2021-12-19 15:14:38,869 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-19 15:14:38,870 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 15:14:38,871 INFO L158 Benchmark]: Toolchain (without parser) took 545.23ms. Allocated memory is still 90.2MB. Free memory was 57.5MB in the beginning and 41.4MB in the end (delta: 16.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-12-19 15:14:38,871 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 15:14:38,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.92ms. Allocated memory is still 90.2MB. Free memory was 57.4MB in the beginning and 66.2MB in the end (delta: -8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 15:14:38,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.06ms. Allocated memory is still 90.2MB. Free memory was 66.2MB in the beginning and 64.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 15:14:38,876 INFO L158 Benchmark]: Boogie Preprocessor took 11.31ms. Allocated memory is still 90.2MB. Free memory was 64.8MB in the beginning and 63.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 15:14:38,878 INFO L158 Benchmark]: RCFGBuilder took 166.86ms. Allocated memory is still 90.2MB. Free memory was 63.7MB in the beginning and 54.9MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 15:14:38,878 INFO L158 Benchmark]: TraceAbstraction took 187.46ms. Allocated memory is still 90.2MB. Free memory was 54.3MB in the beginning and 41.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-19 15:14:38,878 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 90.2MB. Free memory was 41.7MB in the beginning and 41.4MB in the end (delta: 370.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 15:14:38,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 145.92ms. Allocated memory is still 90.2MB. Free memory was 57.4MB in the beginning and 66.2MB in the end (delta: -8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.06ms. Allocated memory is still 90.2MB. Free memory was 66.2MB in the beginning and 64.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.31ms. Allocated memory is still 90.2MB. Free memory was 64.8MB in the beginning and 63.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 166.86ms. Allocated memory is still 90.2MB. Free memory was 63.7MB in the beginning and 54.9MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 187.46ms. Allocated memory is still 90.2MB. Free memory was 54.3MB in the beginning and 41.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 90.2MB. Free memory was 41.7MB in the beginning and 41.4MB in the end (delta: 370.1kB). There was no memory consumed. 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 - UnprovableResult [Line: 31]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 31. Possible FailurePath: [L24] unsigned char x = __VERIFIER_nondet_uchar(); [L25] unsigned char y; [L26] unsigned char c; [L28] y = 0 [L29] c = 0 VAL [c=0, y=0] [L30] COND TRUE c < (unsigned char)8 VAL [c=0, y=0] [L31] ((unsigned char)1) << c VAL [c=0, y=0] - UnprovableResult [Line: 31]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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 could not prove your program: unable to determine feasibility of some traces [2021-12-19 15:14:38,915 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 No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample