./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.04_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.04_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/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 64bit --witnessprinter.graph.data.programhash 1770b13b2d376015ba74d62efd831f9c697d4bdd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:16:51,013 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:16:51,014 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:16:51,021 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:16:51,021 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:16:51,022 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:16:51,022 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:16:51,023 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:16:51,024 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:16:51,025 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:16:51,026 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:16:51,026 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:16:51,026 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:16:51,027 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:16:51,028 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:16:51,029 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:16:51,030 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:16:51,031 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:16:51,032 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:16:51,033 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:16:51,034 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:16:51,034 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:16:51,037 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:16:51,037 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:16:51,037 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:16:51,037 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:16:51,038 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:16:51,039 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:16:51,039 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:16:51,040 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:16:51,040 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:16:51,041 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:16:51,041 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:16:51,041 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:16:51,042 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:16:51,042 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:16:51,043 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-23 13:16:51,052 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:16:51,052 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:16:51,052 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:16:51,052 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:16:51,053 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:16:51,053 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:16:51,053 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:16:51,053 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:16:51,054 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 13:16:51,054 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:16:51,054 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:16:51,054 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:16:51,054 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:16:51,054 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:16:51,054 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 13:16:51,054 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:16:51,054 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:16:51,054 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:16:51,055 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:16:51,055 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:16:51,055 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:16:51,055 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:16:51,055 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:16:51,055 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:16:51,055 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:16:51,055 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:16:51,055 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 13:16:51,055 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:16:51,057 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:16:51,057 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_01ca603e-d66c-450e-bede-27ed2d9a3269/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1770b13b2d376015ba74d62efd831f9c697d4bdd [2018-11-23 13:16:51,078 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:16:51,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:16:51,089 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:16:51,090 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:16:51,090 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:16:51,091 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.04_false-no-overflow.c [2018-11-23 13:16:51,125 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/bin-2019/uautomizer/data/74fecdef4/5099593d948648e3a13abb451e0d85aa/FLAG7edbbf8bd [2018-11-23 13:16:51,521 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:16:51,522 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.04_false-no-overflow.c [2018-11-23 13:16:51,525 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/bin-2019/uautomizer/data/74fecdef4/5099593d948648e3a13abb451e0d85aa/FLAG7edbbf8bd [2018-11-23 13:16:51,535 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/bin-2019/uautomizer/data/74fecdef4/5099593d948648e3a13abb451e0d85aa [2018-11-23 13:16:51,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:16:51,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:16:51,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:16:51,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:16:51,541 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:16:51,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:16:51" (1/1) ... [2018-11-23 13:16:51,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd21f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:51, skipping insertion in model container [2018-11-23 13:16:51,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:16:51" (1/1) ... [2018-11-23 13:16:51,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:16:51,563 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:16:51,668 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:16:51,671 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:16:51,680 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:16:51,688 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:16:51,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:51 WrapperNode [2018-11-23 13:16:51,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:16:51,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:16:51,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:16:51,688 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:16:51,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:51" (1/1) ... [2018-11-23 13:16:51,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:51" (1/1) ... [2018-11-23 13:16:51,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:16:51,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:16:51,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:16:51,702 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:16:51,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:51" (1/1) ... [2018-11-23 13:16:51,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:51" (1/1) ... [2018-11-23 13:16:51,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:51" (1/1) ... [2018-11-23 13:16:51,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:51" (1/1) ... [2018-11-23 13:16:51,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:51" (1/1) ... [2018-11-23 13:16:51,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:51" (1/1) ... [2018-11-23 13:16:51,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:51" (1/1) ... [2018-11-23 13:16:51,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:16:51,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:16:51,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:16:51,713 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:16:51,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/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 [2018-11-23 13:16:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:16:51,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:16:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:16:51,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:16:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:16:51,780 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:16:51,865 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:16:51,865 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 13:16:51,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:16:51 BoogieIcfgContainer [2018-11-23 13:16:51,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:16:51,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:16:51,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:16:51,869 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:16:51,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:16:51" (1/3) ... [2018-11-23 13:16:51,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5fd537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:16:51, skipping insertion in model container [2018-11-23 13:16:51,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:16:51" (2/3) ... [2018-11-23 13:16:51,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5fd537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:16:51, skipping insertion in model container [2018-11-23 13:16:51,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:16:51" (3/3) ... [2018-11-23 13:16:51,872 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.04_false-no-overflow.c [2018-11-23 13:16:51,877 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:16:51,881 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-23 13:16:51,892 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-23 13:16:51,910 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:16:51,911 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:16:51,911 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:16:51,911 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:16:51,911 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:16:51,911 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:16:51,911 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:16:51,911 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:16:51,911 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:16:51,921 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-23 13:16:51,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 13:16:51,924 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:16:51,925 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:16:51,926 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 13:16:51,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:16:51,929 INFO L82 PathProgramCache]: Analyzing trace with hash -37667266, now seen corresponding path program 1 times [2018-11-23 13:16:51,931 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:16:51,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:16:51,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:16:51,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:16:51,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:16:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:16:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:16:52,004 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #28#return; [?] CALL call #t~ret2 := main(); [?] havoc ~x~0;havoc ~y~0;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~x~0 := #t~nondet0;havoc #t~nondet0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~y~0 := #t~nondet1;havoc #t~nondet1; VAL [main_~x~0=1, main_~y~0=2147483647] [?] assume !!(~x~0 < ~y~0); VAL [main_~x~0=1, main_~y~0=2147483647] [?] assume !(~x~0 + ~y~0 <= 2147483647); VAL [main_~x~0=1, main_~y~0=2147483647] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L23] havoc ~x~0; [L23] havoc ~y~0; [L24] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L24] ~x~0 := #t~nondet0; [L24] havoc #t~nondet0; [L25] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L25] ~y~0 := #t~nondet1; [L25] havoc #t~nondet1; VAL [~x~0=1, ~y~0=2147483647] [L26-L29] assume !!(~x~0 < ~y~0); VAL [~x~0=1, ~y~0=2147483647] [L27] assert ~x~0 + ~y~0 <= 2147483647; VAL [~x~0=1, ~y~0=2147483647] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L23] havoc ~x~0; [L23] havoc ~y~0; [L24] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L24] ~x~0 := #t~nondet0; [L24] havoc #t~nondet0; [L25] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L25] ~y~0 := #t~nondet1; [L25] havoc #t~nondet1; VAL [~x~0=1, ~y~0=2147483647] [L26-L29] assume !!(~x~0 < ~y~0); VAL [~x~0=1, ~y~0=2147483647] [L27] assert ~x~0 + ~y~0 <= 2147483647; VAL [~x~0=1, ~y~0=2147483647] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L23] havoc ~x~0; [L23] havoc ~y~0; [L24] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L24] ~x~0 := #t~nondet0; [L24] havoc #t~nondet0; [L25] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L25] ~y~0 := #t~nondet1; [L25] havoc #t~nondet1; VAL [~x~0=1, ~y~0=2147483647] [L26-L29] COND FALSE !(!(~x~0 < ~y~0)) VAL [~x~0=1, ~y~0=2147483647] [L27] assert ~x~0 + ~y~0 <= 2147483647; VAL [~x~0=1, ~y~0=2147483647] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L23] havoc ~x~0; [L23] havoc ~y~0; [L24] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L24] ~x~0 := #t~nondet0; [L24] havoc #t~nondet0; [L25] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L25] ~y~0 := #t~nondet1; [L25] havoc #t~nondet1; VAL [~x~0=1, ~y~0=2147483647] [L26-L29] COND FALSE !(!(~x~0 < ~y~0)) VAL [~x~0=1, ~y~0=2147483647] [L27] assert ~x~0 + ~y~0 <= 2147483647; VAL [~x~0=1, ~y~0=2147483647] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L23] havoc ~x~0; [L23] havoc ~y~0; [L24] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L24] ~x~0 := #t~nondet0; [L24] havoc #t~nondet0; [L25] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L25] ~y~0 := #t~nondet1; [L25] havoc #t~nondet1; VAL [~x~0=1, ~y~0=2147483647] [L26-L29] COND FALSE !(!(~x~0 < ~y~0)) VAL [~x~0=1, ~y~0=2147483647] [L27] assert ~x~0 + ~y~0 <= 2147483647; VAL [~x~0=1, ~y~0=2147483647] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L23] havoc ~x~0; [L23] havoc ~y~0; [L24] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L24] ~x~0 := #t~nondet0; [L24] havoc #t~nondet0; [L25] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L25] ~y~0 := #t~nondet1; [L25] havoc #t~nondet1; VAL [~x~0=1, ~y~0=2147483647] [L26-L29] COND FALSE !(!(~x~0 < ~y~0)) VAL [~x~0=1, ~y~0=2147483647] [L27] assert ~x~0 + ~y~0 <= 2147483647; VAL [~x~0=1, ~y~0=2147483647] [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x < y VAL [x=1, y=2147483647] [L27] x + y VAL [x=1, y=2147483647] ----- [2018-11-23 13:16:52,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:16:52 BoogieIcfgContainer [2018-11-23 13:16:52,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:16:52,026 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:16:52,026 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:16:52,026 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:16:52,027 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:16:51" (3/4) ... [2018-11-23 13:16:52,028 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #28#return; [?] CALL call #t~ret2 := main(); [?] havoc ~x~0;havoc ~y~0;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~x~0 := #t~nondet0;havoc #t~nondet0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~y~0 := #t~nondet1;havoc #t~nondet1; VAL [main_~x~0=1, main_~y~0=2147483647] [?] assume !!(~x~0 < ~y~0); VAL [main_~x~0=1, main_~y~0=2147483647] [?] assume !(~x~0 + ~y~0 <= 2147483647); VAL [main_~x~0=1, main_~y~0=2147483647] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L23] havoc ~x~0; [L23] havoc ~y~0; [L24] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L24] ~x~0 := #t~nondet0; [L24] havoc #t~nondet0; [L25] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L25] ~y~0 := #t~nondet1; [L25] havoc #t~nondet1; VAL [~x~0=1, ~y~0=2147483647] [L26-L29] assume !!(~x~0 < ~y~0); VAL [~x~0=1, ~y~0=2147483647] [L27] assert ~x~0 + ~y~0 <= 2147483647; VAL [~x~0=1, ~y~0=2147483647] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L23] havoc ~x~0; [L23] havoc ~y~0; [L24] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L24] ~x~0 := #t~nondet0; [L24] havoc #t~nondet0; [L25] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L25] ~y~0 := #t~nondet1; [L25] havoc #t~nondet1; VAL [~x~0=1, ~y~0=2147483647] [L26-L29] assume !!(~x~0 < ~y~0); VAL [~x~0=1, ~y~0=2147483647] [L27] assert ~x~0 + ~y~0 <= 2147483647; VAL [~x~0=1, ~y~0=2147483647] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L23] havoc ~x~0; [L23] havoc ~y~0; [L24] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L24] ~x~0 := #t~nondet0; [L24] havoc #t~nondet0; [L25] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L25] ~y~0 := #t~nondet1; [L25] havoc #t~nondet1; VAL [~x~0=1, ~y~0=2147483647] [L26-L29] COND FALSE !(!(~x~0 < ~y~0)) VAL [~x~0=1, ~y~0=2147483647] [L27] assert ~x~0 + ~y~0 <= 2147483647; VAL [~x~0=1, ~y~0=2147483647] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L23] havoc ~x~0; [L23] havoc ~y~0; [L24] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L24] ~x~0 := #t~nondet0; [L24] havoc #t~nondet0; [L25] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L25] ~y~0 := #t~nondet1; [L25] havoc #t~nondet1; VAL [~x~0=1, ~y~0=2147483647] [L26-L29] COND FALSE !(!(~x~0 < ~y~0)) VAL [~x~0=1, ~y~0=2147483647] [L27] assert ~x~0 + ~y~0 <= 2147483647; VAL [~x~0=1, ~y~0=2147483647] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L23] havoc ~x~0; [L23] havoc ~y~0; [L24] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L24] ~x~0 := #t~nondet0; [L24] havoc #t~nondet0; [L25] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L25] ~y~0 := #t~nondet1; [L25] havoc #t~nondet1; VAL [~x~0=1, ~y~0=2147483647] [L26-L29] COND FALSE !(!(~x~0 < ~y~0)) VAL [~x~0=1, ~y~0=2147483647] [L27] assert ~x~0 + ~y~0 <= 2147483647; VAL [~x~0=1, ~y~0=2147483647] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L23] havoc ~x~0; [L23] havoc ~y~0; [L24] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L24] ~x~0 := #t~nondet0; [L24] havoc #t~nondet0; [L25] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L25] ~y~0 := #t~nondet1; [L25] havoc #t~nondet1; VAL [~x~0=1, ~y~0=2147483647] [L26-L29] COND FALSE !(!(~x~0 < ~y~0)) VAL [~x~0=1, ~y~0=2147483647] [L27] assert ~x~0 + ~y~0 <= 2147483647; VAL [~x~0=1, ~y~0=2147483647] [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x < y VAL [x=1, y=2147483647] [L27] x + y VAL [x=1, y=2147483647] ----- [2018-11-23 13:16:52,058 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_01ca603e-d66c-450e-bede-27ed2d9a3269/bin-2019/uautomizer/witness.graphml [2018-11-23 13:16:52,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:16:52,059 INFO L168 Benchmark]: Toolchain (without parser) took 521.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:16:52,060 INFO L168 Benchmark]: CDTParser took 0.10 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. [2018-11-23 13:16:52,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.22 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. [2018-11-23 13:16:52,061 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.31 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:16:52,061 INFO L168 Benchmark]: Boogie Preprocessor took 10.91 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. [2018-11-23 13:16:52,061 INFO L168 Benchmark]: RCFGBuilder took 153.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -200.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-23 13:16:52,062 INFO L168 Benchmark]: TraceAbstraction took 159.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-23 13:16:52,062 INFO L168 Benchmark]: Witness Printer took 32.32 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. [2018-11-23 13:16:52,065 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 149.22 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 Procedure Inliner took 13.31 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.91 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 153.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -200.9 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 159.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * Witness Printer took 32.32 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: - CounterExampleResult [Line: 27]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x < y VAL [x=1, y=2147483647] [L27] x + y VAL [x=1, y=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 4 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=19occurred 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, 7 NumberOfCodeBlocks, 7 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 proved your program to be incorrect! Received shutdown request...