./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/GulavaniGulwani-CAV2008-Fig1b_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_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/GulavaniGulwani-CAV2008-Fig1b_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c60f4fc7735ecf5946101193ab19b5917b1a9698 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:51:33,640 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:51:33,641 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:51:33,648 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:51:33,648 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:51:33,649 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:51:33,650 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:51:33,651 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:51:33,652 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:51:33,652 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:51:33,653 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:51:33,653 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:51:33,654 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:51:33,654 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:51:33,655 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:51:33,656 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:51:33,656 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:51:33,657 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:51:33,659 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:51:33,660 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:51:33,660 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:51:33,661 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:51:33,663 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:51:33,663 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:51:33,663 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:51:33,663 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:51:33,664 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:51:33,665 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:51:33,665 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:51:33,666 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:51:33,666 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:51:33,666 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:51:33,667 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:51:33,667 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:51:33,667 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:51:33,668 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:51:33,668 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-23 12:51:33,677 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:51:33,677 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:51:33,678 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:51:33,678 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:51:33,678 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 12:51:33,678 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 12:51:33,678 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 12:51:33,679 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 12:51:33,679 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 12:51:33,679 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 12:51:33,679 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 12:51:33,679 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 12:51:33,679 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 12:51:33,680 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:51:33,680 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 12:51:33,680 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:51:33,680 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:51:33,680 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:51:33,680 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:51:33,681 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:51:33,681 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 12:51:33,681 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:51:33,681 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:51:33,681 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:51:33,681 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:51:33,681 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:51:33,681 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:51:33,682 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:51:33,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:51:33,682 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:51:33,682 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:51:33,682 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:51:33,682 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 12:51:33,682 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:51:33,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:51:33,683 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 12:51:33,683 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan 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 -> Taipan 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 -> c60f4fc7735ecf5946101193ab19b5917b1a9698 [2018-11-23 12:51:33,706 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:51:33,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:51:33,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:51:33,718 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:51:33,718 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:51:33,718 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/GulavaniGulwani-CAV2008-Fig1b_false-no-overflow.c [2018-11-23 12:51:33,754 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan/data/e3f2dbb01/a376a30e53f84835aeae0f639ae76df1/FLAG5cfad1a5b [2018-11-23 12:51:34,159 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:51:34,159 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_80bb8358-8de9-4827-b17e-af3e1d2f37c0/sv-benchmarks/c/termination-crafted-lit/GulavaniGulwani-CAV2008-Fig1b_false-no-overflow.c [2018-11-23 12:51:34,163 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan/data/e3f2dbb01/a376a30e53f84835aeae0f639ae76df1/FLAG5cfad1a5b [2018-11-23 12:51:34,172 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan/data/e3f2dbb01/a376a30e53f84835aeae0f639ae76df1 [2018-11-23 12:51:34,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:51:34,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:51:34,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:51:34,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:51:34,178 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:51:34,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:51:34" (1/1) ... [2018-11-23 12:51:34,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c8d80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:34, skipping insertion in model container [2018-11-23 12:51:34,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:51:34" (1/1) ... [2018-11-23 12:51:34,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:51:34,197 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:51:34,303 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:51:34,305 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:51:34,315 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:51:34,324 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:51:34,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:34 WrapperNode [2018-11-23 12:51:34,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:51:34,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:51:34,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:51:34,325 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:51:34,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:34" (1/1) ... [2018-11-23 12:51:34,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:34" (1/1) ... [2018-11-23 12:51:34,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:51:34,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:51:34,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:51:34,338 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:51:34,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:34" (1/1) ... [2018-11-23 12:51:34,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:34" (1/1) ... [2018-11-23 12:51:34,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:34" (1/1) ... [2018-11-23 12:51:34,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:34" (1/1) ... [2018-11-23 12:51:34,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:34" (1/1) ... [2018-11-23 12:51:34,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:34" (1/1) ... [2018-11-23 12:51:34,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:34" (1/1) ... [2018-11-23 12:51:34,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:51:34,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:51:34,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:51:34,352 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:51:34,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan/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 12:51:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:51:34,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:51:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:51:34,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:51:34,427 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:51:34,427 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:51:34,528 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:51:34,528 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 12:51:34,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:51:34 BoogieIcfgContainer [2018-11-23 12:51:34,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:51:34,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:51:34,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:51:34,532 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:51:34,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:51:34" (1/3) ... [2018-11-23 12:51:34,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d32c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:51:34, skipping insertion in model container [2018-11-23 12:51:34,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:51:34" (2/3) ... [2018-11-23 12:51:34,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d32c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:51:34, skipping insertion in model container [2018-11-23 12:51:34,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:51:34" (3/3) ... [2018-11-23 12:51:34,534 INFO L112 eAbstractionObserver]: Analyzing ICFG GulavaniGulwani-CAV2008-Fig1b_false-no-overflow.c [2018-11-23 12:51:34,540 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:51:34,544 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-23 12:51:34,553 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-23 12:51:34,571 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:51:34,572 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:51:34,572 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:51:34,572 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:51:34,572 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:51:34,572 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:51:34,572 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:51:34,572 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:51:34,583 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-23 12:51:34,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 12:51:34,586 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:51:34,587 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:51:34,588 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 12:51:34,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:51:34,592 INFO L82 PathProgramCache]: Analyzing trace with hash -336853583, now seen corresponding path program 1 times [2018-11-23 12:51:34,593 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:51:34,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:34,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:51:34,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:51:34,629 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:51:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:51:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:51:34,665 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #47#return; [?] CALL call #t~ret4 := main(); [?] havoc ~x~0;havoc ~i~0;havoc ~n~0;havoc ~m~0;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~x~0 := #t~nondet0;havoc #t~nondet0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~i~0 := #t~nondet1;havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~n~0 := #t~nondet2;havoc #t~nondet2;assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647;~m~0 := #t~nondet3;havoc #t~nondet3; VAL [main_~i~0=2147483647, main_~m~0=0, main_~n~0=0, main_~x~0=(- 1)] [?] assume !!(~x~0 < ~n~0); VAL [main_~i~0=2147483647, main_~m~0=0, main_~n~0=0, main_~x~0=(- 1)] [?] assume !(1 + ~i~0 <= 2147483647); VAL [main_~i~0=2147483647, main_~m~0=0, main_~n~0=0, main_~x~0=(- 1)] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L14] havoc ~x~0; [L14] havoc ~i~0; [L14] havoc ~n~0; [L14] havoc ~m~0; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L16] ~i~0 := #t~nondet1; [L16] havoc #t~nondet1; [L17] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L17] ~n~0 := #t~nondet2; [L17] havoc #t~nondet2; [L18] assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; [L18] ~m~0 := #t~nondet3; [L18] havoc #t~nondet3; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L19-L22] assume !!(~x~0 < ~n~0); VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L20] assert 1 + ~i~0 <= 2147483647; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L14] havoc ~x~0; [L14] havoc ~i~0; [L14] havoc ~n~0; [L14] havoc ~m~0; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L16] ~i~0 := #t~nondet1; [L16] havoc #t~nondet1; [L17] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L17] ~n~0 := #t~nondet2; [L17] havoc #t~nondet2; [L18] assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; [L18] ~m~0 := #t~nondet3; [L18] havoc #t~nondet3; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L19-L22] assume !!(~x~0 < ~n~0); VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L20] assert 1 + ~i~0 <= 2147483647; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L14] havoc ~x~0; [L14] havoc ~i~0; [L14] havoc ~n~0; [L14] havoc ~m~0; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L16] ~i~0 := #t~nondet1; [L16] havoc #t~nondet1; [L17] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L17] ~n~0 := #t~nondet2; [L17] havoc #t~nondet2; [L18] assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; [L18] ~m~0 := #t~nondet3; [L18] havoc #t~nondet3; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L19-L22] COND FALSE !(!(~x~0 < ~n~0)) VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L20] assert 1 + ~i~0 <= 2147483647; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L14] havoc ~x~0; [L14] havoc ~i~0; [L14] havoc ~n~0; [L14] havoc ~m~0; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L16] ~i~0 := #t~nondet1; [L16] havoc #t~nondet1; [L17] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L17] ~n~0 := #t~nondet2; [L17] havoc #t~nondet2; [L18] assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; [L18] ~m~0 := #t~nondet3; [L18] havoc #t~nondet3; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L19-L22] COND FALSE !(!(~x~0 < ~n~0)) VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L20] assert 1 + ~i~0 <= 2147483647; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L14] havoc ~x~0; [L14] havoc ~i~0; [L14] havoc ~n~0; [L14] havoc ~m~0; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L16] ~i~0 := #t~nondet1; [L16] havoc #t~nondet1; [L17] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L17] ~n~0 := #t~nondet2; [L17] havoc #t~nondet2; [L18] assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; [L18] ~m~0 := #t~nondet3; [L18] havoc #t~nondet3; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L19-L22] COND FALSE !(!(~x~0 < ~n~0)) VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L20] assert 1 + ~i~0 <= 2147483647; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L14] havoc ~x~0; [L14] havoc ~i~0; [L14] havoc ~n~0; [L14] havoc ~m~0; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L16] ~i~0 := #t~nondet1; [L16] havoc #t~nondet1; [L17] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L17] ~n~0 := #t~nondet2; [L17] havoc #t~nondet2; [L18] assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; [L18] ~m~0 := #t~nondet3; [L18] havoc #t~nondet3; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L19-L22] COND FALSE !(!(~x~0 < ~n~0)) VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L20] assert 1 + ~i~0 <= 2147483647; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L14] int x, i, n, m; [L15] x = __VERIFIER_nondet_int() [L16] i = __VERIFIER_nondet_int() [L17] n = __VERIFIER_nondet_int() [L18] m = __VERIFIER_nondet_int() [L19] COND TRUE x < n VAL [i=2147483647, m=0, n=0, x=-1] [L20] i + 1 VAL [i=2147483647, m=0, n=0, x=-1] ----- [2018-11-23 12:51:34,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:51:34 BoogieIcfgContainer [2018-11-23 12:51:34,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 12:51:34,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:51:34,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:51:34,687 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:51:34,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:51:34" (3/4) ... [2018-11-23 12:51:34,689 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 #47#return; [?] CALL call #t~ret4 := main(); [?] havoc ~x~0;havoc ~i~0;havoc ~n~0;havoc ~m~0;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~x~0 := #t~nondet0;havoc #t~nondet0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~i~0 := #t~nondet1;havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~n~0 := #t~nondet2;havoc #t~nondet2;assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647;~m~0 := #t~nondet3;havoc #t~nondet3; VAL [main_~i~0=2147483647, main_~m~0=0, main_~n~0=0, main_~x~0=(- 1)] [?] assume !!(~x~0 < ~n~0); VAL [main_~i~0=2147483647, main_~m~0=0, main_~n~0=0, main_~x~0=(- 1)] [?] assume !(1 + ~i~0 <= 2147483647); VAL [main_~i~0=2147483647, main_~m~0=0, main_~n~0=0, main_~x~0=(- 1)] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L14] havoc ~x~0; [L14] havoc ~i~0; [L14] havoc ~n~0; [L14] havoc ~m~0; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L16] ~i~0 := #t~nondet1; [L16] havoc #t~nondet1; [L17] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L17] ~n~0 := #t~nondet2; [L17] havoc #t~nondet2; [L18] assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; [L18] ~m~0 := #t~nondet3; [L18] havoc #t~nondet3; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L19-L22] assume !!(~x~0 < ~n~0); VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L20] assert 1 + ~i~0 <= 2147483647; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L14] havoc ~x~0; [L14] havoc ~i~0; [L14] havoc ~n~0; [L14] havoc ~m~0; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L16] ~i~0 := #t~nondet1; [L16] havoc #t~nondet1; [L17] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L17] ~n~0 := #t~nondet2; [L17] havoc #t~nondet2; [L18] assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; [L18] ~m~0 := #t~nondet3; [L18] havoc #t~nondet3; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L19-L22] assume !!(~x~0 < ~n~0); VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L20] assert 1 + ~i~0 <= 2147483647; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L14] havoc ~x~0; [L14] havoc ~i~0; [L14] havoc ~n~0; [L14] havoc ~m~0; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L16] ~i~0 := #t~nondet1; [L16] havoc #t~nondet1; [L17] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L17] ~n~0 := #t~nondet2; [L17] havoc #t~nondet2; [L18] assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; [L18] ~m~0 := #t~nondet3; [L18] havoc #t~nondet3; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L19-L22] COND FALSE !(!(~x~0 < ~n~0)) VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L20] assert 1 + ~i~0 <= 2147483647; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L14] havoc ~x~0; [L14] havoc ~i~0; [L14] havoc ~n~0; [L14] havoc ~m~0; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L16] ~i~0 := #t~nondet1; [L16] havoc #t~nondet1; [L17] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L17] ~n~0 := #t~nondet2; [L17] havoc #t~nondet2; [L18] assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; [L18] ~m~0 := #t~nondet3; [L18] havoc #t~nondet3; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L19-L22] COND FALSE !(!(~x~0 < ~n~0)) VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L20] assert 1 + ~i~0 <= 2147483647; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L14] havoc ~x~0; [L14] havoc ~i~0; [L14] havoc ~n~0; [L14] havoc ~m~0; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L16] ~i~0 := #t~nondet1; [L16] havoc #t~nondet1; [L17] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L17] ~n~0 := #t~nondet2; [L17] havoc #t~nondet2; [L18] assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; [L18] ~m~0 := #t~nondet3; [L18] havoc #t~nondet3; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L19-L22] COND FALSE !(!(~x~0 < ~n~0)) VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L20] assert 1 + ~i~0 <= 2147483647; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L14] havoc ~x~0; [L14] havoc ~i~0; [L14] havoc ~n~0; [L14] havoc ~m~0; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L15] ~x~0 := #t~nondet0; [L15] havoc #t~nondet0; [L16] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; [L16] ~i~0 := #t~nondet1; [L16] havoc #t~nondet1; [L17] assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; [L17] ~n~0 := #t~nondet2; [L17] havoc #t~nondet2; [L18] assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; [L18] ~m~0 := #t~nondet3; [L18] havoc #t~nondet3; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L19-L22] COND FALSE !(!(~x~0 < ~n~0)) VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L20] assert 1 + ~i~0 <= 2147483647; VAL [~i~0=2147483647, ~m~0=0, ~n~0=0, ~x~0=-1] [L14] int x, i, n, m; [L15] x = __VERIFIER_nondet_int() [L16] i = __VERIFIER_nondet_int() [L17] n = __VERIFIER_nondet_int() [L18] m = __VERIFIER_nondet_int() [L19] COND TRUE x < n VAL [i=2147483647, m=0, n=0, x=-1] [L20] i + 1 VAL [i=2147483647, m=0, n=0, x=-1] ----- [2018-11-23 12:51:34,720 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_80bb8358-8de9-4827-b17e-af3e1d2f37c0/bin-2019/utaipan/witness.graphml [2018-11-23 12:51:34,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:51:34,720 INFO L168 Benchmark]: Toolchain (without parser) took 545.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:51:34,721 INFO L168 Benchmark]: CDTParser took 0.12 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 12:51:34,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.88 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:51:34,722 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.74 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:51:34,722 INFO L168 Benchmark]: Boogie Preprocessor took 14.24 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:51:34,723 INFO L168 Benchmark]: RCFGBuilder took 176.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -196.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 12:51:34,723 INFO L168 Benchmark]: TraceAbstraction took 156.75 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-23 12:51:34,724 INFO L168 Benchmark]: Witness Printer took 33.33 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 12:51:34,726 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 148.88 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 12.74 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.24 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 176.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -196.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 156.75 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Witness Printer took 33.33 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, i, n, m; [L15] x = __VERIFIER_nondet_int() [L16] i = __VERIFIER_nondet_int() [L17] n = __VERIFIER_nondet_int() [L18] m = __VERIFIER_nondet_int() [L19] COND TRUE x < n VAL [i=2147483647, m=0, n=0, x=-1] [L20] i + 1 VAL [i=2147483647, m=0, n=0, x=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 8 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=28occurred 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...