./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/bitvector/num_conversion_2_true-unreach-call_true-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/num_conversion_2_true-unreach-call_true-no-overflow.i -s /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer --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 0b1dd98d7879c6a852477263dd33a13d229a6eb3 ................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer/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 --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:45:47,353 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:45:47,354 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:45:47,361 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:45:47,362 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:45:47,362 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:45:47,363 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:45:47,364 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:45:47,365 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:45:47,366 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:45:47,367 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:45:47,367 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:45:47,368 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:45:47,368 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:45:47,369 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:45:47,370 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:45:47,370 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:45:47,371 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:45:47,373 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:45:47,374 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:45:47,374 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:45:47,375 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:45:47,377 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:45:47,377 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:45:47,377 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:45:47,378 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:45:47,379 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:45:47,379 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:45:47,380 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:45:47,381 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:45:47,381 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:45:47,381 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:45:47,381 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:45:47,382 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:45:47,382 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:45:47,383 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:45:47,383 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2018-11-18 13:45:47,393 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:45:47,393 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:45:47,394 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:45:47,394 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 13:45:47,394 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:45:47,394 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:45:47,395 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 13:45:47,395 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:45:47,395 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:45:47,395 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 13:45:47,395 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:45:47,395 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:45:47,395 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:45:47,396 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:45:47,396 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:45:47,396 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:45:47,396 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 13:45:47,396 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:45:47,396 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:45:47,396 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:45:47,396 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:45:47,397 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:45:47,397 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:45:47,397 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:45:47,397 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:45:47,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:45:47,397 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:45:47,398 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:45:47,398 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:45:47,398 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 13:45:47,398 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:45:47,398 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:45:47,398 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer 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 -> 0b1dd98d7879c6a852477263dd33a13d229a6eb3 [2018-11-18 13:45:47,422 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:45:47,432 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:45:47,435 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:45:47,436 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:45:47,436 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:45:47,436 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/num_conversion_2_true-unreach-call_true-no-overflow.i [2018-11-18 13:45:47,476 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer/data/f46c5d338/b32efabe87774ce9aafd08a3f727072d/FLAG46c881f41 [2018-11-18 13:45:47,792 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:45:47,793 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/sv-benchmarks/c/bitvector/num_conversion_2_true-unreach-call_true-no-overflow.i [2018-11-18 13:45:47,798 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer/data/f46c5d338/b32efabe87774ce9aafd08a3f727072d/FLAG46c881f41 [2018-11-18 13:45:47,808 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer/data/f46c5d338/b32efabe87774ce9aafd08a3f727072d [2018-11-18 13:45:47,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:45:47,812 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 13:45:47,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:45:47,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:45:47,816 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:45:47,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:45:47" (1/1) ... [2018-11-18 13:45:47,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a19fc73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:45:47, skipping insertion in model container [2018-11-18 13:45:47,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:45:47" (1/1) ... [2018-11-18 13:45:47,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:45:47,843 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:45:47,966 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:45:47,968 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:45:47,978 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:45:47,988 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:45:47,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:45:47 WrapperNode [2018-11-18 13:45:47,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:45:47,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:45:47,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:45:47,989 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:45:47,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:45:47" (1/1) ... [2018-11-18 13:45:47,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:45:47" (1/1) ... [2018-11-18 13:45:48,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:45:47" (1/1) ... [2018-11-18 13:45:48,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:45:47" (1/1) ... [2018-11-18 13:45:48,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:45:47" (1/1) ... [2018-11-18 13:45:48,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:45:47" (1/1) ... [2018-11-18 13:45:48,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:45:47" (1/1) ... [2018-11-18 13:45:48,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:45:48,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:45:48,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:45:48,008 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:45:48,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:45:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_209cfc25-69a0-444d-83e0-69352bd156c1/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:45:48,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:45:48,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:45:48,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 13:45:48,084 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:45:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 13:45:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2018-11-18 13:45:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 13:45:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:45:48,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:45:48,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:45:48,197 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:45:48,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:45:48 BoogieIcfgContainer [2018-11-18 13:45:48,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:45:48,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:45:48,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:45:48,201 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:45:48,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:45:47" (1/3) ... [2018-11-18 13:45:48,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145366de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:45:48, skipping insertion in model container [2018-11-18 13:45:48,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:45:47" (2/3) ... [2018-11-18 13:45:48,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145366de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:45:48, skipping insertion in model container [2018-11-18 13:45:48,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:45:48" (3/3) ... [2018-11-18 13:45:48,204 INFO L112 eAbstractionObserver]: Analyzing ICFG num_conversion_2_true-unreach-call_true-no-overflow.i [2018-11-18 13:45:48,212 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:45:48,217 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-18 13:45:48,230 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-18 13:45:48,253 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:45:48,254 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:45:48,254 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:45:48,254 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:45:48,254 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:45:48,254 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:45:48,254 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:45:48,255 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:45:48,255 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:45:48,268 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-18 13:45:48,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 13:45:48,271 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:45:48,272 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:45:48,273 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 13:45:48,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:45:48,278 INFO L82 PathProgramCache]: Analyzing trace with hash -830409546, now seen corresponding path program 1 times [2018-11-18 13:45:48,279 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:45:48,280 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:45:48,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:48,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:45:48,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:45:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:45:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:45:48,344 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 13:45:48,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:45:48 BoogieIcfgContainer [2018-11-18 13:45:48,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:45:48,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:45:48,358 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:45:48,358 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:45:48,358 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:45:48" (3/4) ... [2018-11-18 13:45:48,361 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 13:45:48,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:45:48,362 INFO L168 Benchmark]: Toolchain (without parser) took 550.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -180.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:45:48,363 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:45:48,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.98 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:45:48,364 INFO L168 Benchmark]: Boogie Preprocessor took 18.60 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:45:48,365 INFO L168 Benchmark]: RCFGBuilder took 190.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 944.6 MB in the beginning and 1.2 GB in the end (delta: -206.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-18 13:45:48,365 INFO L168 Benchmark]: TraceAbstraction took 159.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-11-18 13:45:48,366 INFO L168 Benchmark]: Witness Printer took 3.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:45:48,368 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.98 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.60 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 190.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 944.6 MB in the beginning and 1.2 GB in the end (delta: -206.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 159.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 21]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 21. Possible FailurePath: [L14] unsigned char x = __VERIFIER_nondet_uchar(); [L15] unsigned char y; [L16] unsigned char c; [L18] y = 0 [L19] c = 0 VAL [c=0, x=0, y=0] [L20] COND TRUE c < (unsigned char)8 VAL [c=0, x=0, y=0] [L21] ((unsigned char)1) << c VAL [c=0, x=0, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 6 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...