./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex6.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex6.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/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 947235a588f48ba2205d0e28208675772856b98e ...................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 00:06:10,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:06:10,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:06:10,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:06:10,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:06:10,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:06:10,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:06:10,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:06:10,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:06:10,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:06:10,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:06:10,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:06:10,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:06:10,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:06:10,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:06:10,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:06:10,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:06:10,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:06:10,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:06:10,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:06:10,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:06:10,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:06:10,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:06:10,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:06:10,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:06:10,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:06:10,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:06:10,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:06:10,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:06:10,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:06:10,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:06:10,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:06:10,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:06:10,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:06:10,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:06:10,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:06:10,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:06:10,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:06:10,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:06:10,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:06:10,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:06:10,297 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-20 00:06:10,330 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:06:10,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:06:10,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:06:10,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:06:10,332 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:06:10,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:06:10,333 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 00:06:10,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:06:10,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:06:10,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:06:10,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:06:10,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:06:10,334 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 00:06:10,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:06:10,335 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:06:10,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:06:10,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:06:10,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:06:10,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:06:10,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:06:10,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:06:10,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:06:10,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:06:10,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:06:10,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:06:10,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 00:06:10,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:06:10,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/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 -> 947235a588f48ba2205d0e28208675772856b98e [2019-11-20 00:06:10,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:06:10,558 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:06:10,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:06:10,563 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:06:10,564 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:06:10,564 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex6.c [2019-11-20 00:06:10,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/uautomizer/data/155c8d645/560da51350c148d3b8961dc34dfb328f/FLAG60dbf2ef6 [2019-11-20 00:06:11,119 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:06:11,120 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex6.c [2019-11-20 00:06:11,127 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/uautomizer/data/155c8d645/560da51350c148d3b8961dc34dfb328f/FLAG60dbf2ef6 [2019-11-20 00:06:11,494 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/uautomizer/data/155c8d645/560da51350c148d3b8961dc34dfb328f [2019-11-20 00:06:11,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:06:11,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:06:11,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:06:11,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:06:11,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:06:11,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:06:11" (1/1) ... [2019-11-20 00:06:11,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5200a7ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:11, skipping insertion in model container [2019-11-20 00:06:11,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:06:11" (1/1) ... [2019-11-20 00:06:11,516 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:06:11,533 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:06:11,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:06:11,762 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:06:11,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:06:11,879 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:06:11,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:11 WrapperNode [2019-11-20 00:06:11,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:06:11,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:06:11,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:06:11,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:06:11,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:11" (1/1) ... [2019-11-20 00:06:11,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:11" (1/1) ... [2019-11-20 00:06:11,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:06:11,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:06:11,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:06:11,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:06:11,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:11" (1/1) ... [2019-11-20 00:06:11,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:11" (1/1) ... [2019-11-20 00:06:11,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:11" (1/1) ... [2019-11-20 00:06:11,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:11" (1/1) ... [2019-11-20 00:06:11,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:11" (1/1) ... [2019-11-20 00:06:11,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:11" (1/1) ... [2019-11-20 00:06:11,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:11" (1/1) ... [2019-11-20 00:06:11,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:06:11,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:06:11,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:06:11,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:06:11,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/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 [2019-11-20 00:06:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:06:12,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:06:12,197 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:06:12,197 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 00:06:12,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:06:12 BoogieIcfgContainer [2019-11-20 00:06:12,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:06:12,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:06:12,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:06:12,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:06:12,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:06:11" (1/3) ... [2019-11-20 00:06:12,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1674ef25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:06:12, skipping insertion in model container [2019-11-20 00:06:12,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:11" (2/3) ... [2019-11-20 00:06:12,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1674ef25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:06:12, skipping insertion in model container [2019-11-20 00:06:12,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:06:12" (3/3) ... [2019-11-20 00:06:12,208 INFO L109 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-WST2014-Ex6.c [2019-11-20 00:06:12,219 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:06:12,226 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-20 00:06:12,239 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-20 00:06:12,265 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:06:12,265 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:06:12,265 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:06:12,266 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:06:12,266 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:06:12,266 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:06:12,266 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:06:12,266 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:06:12,283 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-20 00:06:12,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 00:06:12,289 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:06:12,289 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-20 00:06:12,290 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 00:06:12,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:06:12,297 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-20 00:06:12,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:06:12,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813406964] [2019-11-20 00:06:12,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:06:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:06:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:06:12,437 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:06:12,437 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 00:06:12,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:06:12 BoogieIcfgContainer [2019-11-20 00:06:12,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:06:12,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:06:12,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:06:12,457 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:06:12,458 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:06:12" (3/4) ... [2019-11-20 00:06:12,460 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 00:06:12,503 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2bffec9b-178f-4d5d-b3c2-2d04650feaff/bin/uautomizer/witness.graphml [2019-11-20 00:06:12,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:06:12,506 INFO L168 Benchmark]: Toolchain (without parser) took 1006.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:06:12,506 INFO L168 Benchmark]: CDTParser took 1.33 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:06:12,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -211.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 00:06:12,508 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:06:12,509 INFO L168 Benchmark]: Boogie Preprocessor took 25.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:06:12,509 INFO L168 Benchmark]: RCFGBuilder took 250.75 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:06:12,510 INFO L168 Benchmark]: TraceAbstraction took 256.51 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-20 00:06:12,511 INFO L168 Benchmark]: Witness Printer took 46.99 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. [2019-11-20 00:06:12,514 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.33 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 381.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -211.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 250.75 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 256.51 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Witness Printer took 46.99 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: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int a, b; [L15] a = __VERIFIER_nondet_int() [L16] b = __VERIFIER_nondet_int() [L17] COND TRUE a >= 1 && b >= 1 [L18] 2*a - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...