./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/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 a3bc8586d8722f62f6c29c16aaad29e5c9f97f34 .......................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 13:31:36,660 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:31:36,662 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:31:36,670 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:31:36,670 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:31:36,671 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:31:36,672 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:31:36,673 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:31:36,674 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:31:36,675 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:31:36,675 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:31:36,675 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:31:36,676 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:31:36,677 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:31:36,677 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:31:36,678 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:31:36,679 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:31:36,680 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:31:36,681 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:31:36,682 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:31:36,683 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:31:36,683 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:31:36,685 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:31:36,685 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:31:36,685 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:31:36,686 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:31:36,686 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:31:36,687 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:31:36,687 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:31:36,688 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:31:36,688 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:31:36,689 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:31:36,689 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:31:36,689 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:31:36,690 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:31:36,690 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:31:36,690 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 13:31:36,700 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:31:36,700 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:31:36,701 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:31:36,701 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:31:36,701 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:31:36,701 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:31:36,701 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:31:36,701 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:31:36,701 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:31:36,702 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:31:36,702 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:31:36,702 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:31:36,702 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 13:31:36,703 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:31:36,703 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:31:36,703 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:31:36,703 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:31:36,703 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:31:36,703 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 13:31:36,703 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:31:36,703 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:31:36,704 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:31:36,704 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:31:36,704 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:31:36,704 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:31:36,704 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:31:36,704 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:31:36,704 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:31:36,705 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:31:36,705 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:31:36,705 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:31:36,705 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:31:36,705 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:31:36,705 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_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/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 -> a3bc8586d8722f62f6c29c16aaad29e5c9f97f34 [2018-11-10 13:31:36,729 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:31:36,738 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:31:36,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:31:36,741 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:31:36,742 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:31:36,742 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered_false-no-overflow.c [2018-11-10 13:31:36,786 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/bin-2019/utaipan/data/6c5102c83/33063fa5ae2c4f1b8af44997cf4da1ff/FLAG7c5df7def [2018-11-10 13:31:37,120 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:31:37,121 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered_false-no-overflow.c [2018-11-10 13:31:37,126 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/bin-2019/utaipan/data/6c5102c83/33063fa5ae2c4f1b8af44997cf4da1ff/FLAG7c5df7def [2018-11-10 13:31:37,135 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/bin-2019/utaipan/data/6c5102c83/33063fa5ae2c4f1b8af44997cf4da1ff [2018-11-10 13:31:37,137 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:31:37,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:31:37,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:31:37,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:31:37,140 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:31:37,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:31:37" (1/1) ... [2018-11-10 13:31:37,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6683c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:37, skipping insertion in model container [2018-11-10 13:31:37,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:31:37" (1/1) ... [2018-11-10 13:31:37,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:31:37,161 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:31:37,254 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:31:37,256 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:31:37,265 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:31:37,272 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:31:37,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:37 WrapperNode [2018-11-10 13:31:37,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:31:37,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:31:37,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:31:37,273 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:31:37,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:37" (1/1) ... [2018-11-10 13:31:37,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:37" (1/1) ... [2018-11-10 13:31:37,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:31:37,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:31:37,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:31:37,285 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:31:37,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:37" (1/1) ... [2018-11-10 13:31:37,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:37" (1/1) ... [2018-11-10 13:31:37,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:37" (1/1) ... [2018-11-10 13:31:37,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:37" (1/1) ... [2018-11-10 13:31:37,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:37" (1/1) ... [2018-11-10 13:31:37,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:37" (1/1) ... [2018-11-10 13:31:37,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:37" (1/1) ... [2018-11-10 13:31:37,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:31:37,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:31:37,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:31:37,297 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:31:37,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/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 [2018-11-10 13:31:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:31:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:31:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:31:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:31:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:31:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:31:37,494 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:31:37,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:31:37 BoogieIcfgContainer [2018-11-10 13:31:37,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:31:37,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:31:37,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:31:37,498 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:31:37,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:31:37" (1/3) ... [2018-11-10 13:31:37,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c616acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:31:37, skipping insertion in model container [2018-11-10 13:31:37,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:37" (2/3) ... [2018-11-10 13:31:37,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c616acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:31:37, skipping insertion in model container [2018-11-10 13:31:37,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:31:37" (3/3) ... [2018-11-10 13:31:37,501 INFO L112 eAbstractionObserver]: Analyzing ICFG Lobnya-Boolean-Reordered_false-no-overflow.c [2018-11-10 13:31:37,508 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:31:37,514 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-10 13:31:37,526 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-10 13:31:37,550 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:31:37,550 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:31:37,551 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:31:37,551 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:31:37,551 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:31:37,551 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:31:37,551 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:31:37,551 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:31:37,563 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-10 13:31:37,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 13:31:37,566 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:31:37,567 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:31:37,568 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:31:37,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:31:37,572 INFO L82 PathProgramCache]: Analyzing trace with hash -145568311, now seen corresponding path program 1 times [2018-11-10 13:31:37,573 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:31:37,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:37,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:31:37,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:37,606 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:31:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:31:37,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:31:37,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:31:37,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:31:37,675 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:31:37,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 13:31:37,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 13:31:37,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:31:37,691 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-11-10 13:31:37,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:31:37,718 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-10 13:31:37,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 13:31:37,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-10 13:31:37,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:31:37,725 INFO L225 Difference]: With dead ends: 22 [2018-11-10 13:31:37,725 INFO L226 Difference]: Without dead ends: 11 [2018-11-10 13:31:37,726 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:31:37,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-11-10 13:31:37,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-10 13:31:37,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-10 13:31:37,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2018-11-10 13:31:37,747 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2018-11-10 13:31:37,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:31:37,748 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2018-11-10 13:31:37,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 13:31:37,748 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2018-11-10 13:31:37,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 13:31:37,748 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:31:37,748 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:31:37,749 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:31:37,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:31:37,749 INFO L82 PathProgramCache]: Analyzing trace with hash -217650297, now seen corresponding path program 1 times [2018-11-10 13:31:37,749 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:31:37,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:37,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:31:37,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:37,750 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:31:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:31:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:31:37,770 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:31:37,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:31:37 BoogieIcfgContainer [2018-11-10 13:31:37,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:31:37,783 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:31:37,783 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:31:37,783 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:31:37,784 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:31:37" (3/4) ... [2018-11-10 13:31:37,785 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 13:31:37,811 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2c70e543-6d6c-4c1d-9dc4-458c54be59a1/bin-2019/utaipan/witness.graphml [2018-11-10 13:31:37,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:31:37,812 INFO L168 Benchmark]: Toolchain (without parser) took 675.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:31:37,813 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:31:37,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.97 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:31:37,814 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.72 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:31:37,815 INFO L168 Benchmark]: Boogie Preprocessor took 11.81 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:31:37,815 INFO L168 Benchmark]: RCFGBuilder took 197.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -212.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-10 13:31:37,815 INFO L168 Benchmark]: TraceAbstraction took 287.54 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:31:37,816 INFO L168 Benchmark]: Witness Printer took 28.58 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:31:37,818 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.97 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.72 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.81 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 197.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -212.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 287.54 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * Witness Printer took 28.58 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: 6.9 MB). Peak memory consumption was 6.9 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: [L15] int x, b; [L16] x = __VERIFIER_nondet_int() [L17] b = __VERIFIER_nondet_int() [L18] COND TRUE b != 0 [L19] b = __VERIFIER_nondet_int() [L20] x - 1 VAL [b=0, x=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 17 locations, 2 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 7 SDslu, 6 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 91 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...