./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.02_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.02_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f7a9b9f6f441a79f9d4bea5933ea301694cdf5e5 ....................................................................................................................................................................................................................................... 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 0.1.23-0cd3be1 [2018-11-28 12:21:14,338 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:21:14,339 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:21:14,347 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:21:14,347 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:21:14,348 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:21:14,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:21:14,349 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:21:14,350 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:21:14,350 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:21:14,351 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:21:14,351 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:21:14,352 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:21:14,352 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:21:14,352 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:21:14,353 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:21:14,353 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:21:14,354 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:21:14,356 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:21:14,356 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:21:14,357 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:21:14,357 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:21:14,358 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:21:14,359 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:21:14,359 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:21:14,359 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:21:14,360 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:21:14,360 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:21:14,360 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:21:14,361 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:21:14,361 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:21:14,362 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:21:14,362 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:21:14,362 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:21:14,363 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:21:14,364 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:21:14,364 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 12:21:14,374 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:21:14,374 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:21:14,375 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:21:14,375 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:21:14,376 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:21:14,376 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:21:14,376 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:21:14,376 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:21:14,376 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:21:14,376 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:21:14,376 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:21:14,377 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:21:14,377 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:21:14,377 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:21:14,377 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 12:21:14,377 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:21:14,377 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:21:14,378 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:21:14,378 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:21:14,378 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:21:14,378 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:21:14,378 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:21:14,378 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:21:14,379 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:21:14,379 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:21:14,379 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:21:14,379 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:21:14,379 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:21:14,379 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:21:14,379 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7a9b9f6f441a79f9d4bea5933ea301694cdf5e5 [2018-11-28 12:21:14,404 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:21:14,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:21:14,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:21:14,416 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:21:14,417 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:21:14,417 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.02_false-no-overflow.c [2018-11-28 12:21:14,461 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer/data/25de52c3a/2a6cc896ea7b400c9db86d53e5a1561a/FLAG6575b9ef1 [2018-11-28 12:21:14,799 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:21:14,799 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.02_false-no-overflow.c [2018-11-28 12:21:14,803 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer/data/25de52c3a/2a6cc896ea7b400c9db86d53e5a1561a/FLAG6575b9ef1 [2018-11-28 12:21:15,222 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer/data/25de52c3a/2a6cc896ea7b400c9db86d53e5a1561a [2018-11-28 12:21:15,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:21:15,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:21:15,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:21:15,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:21:15,228 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:21:15,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:21:15" (1/1) ... [2018-11-28 12:21:15,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce49ab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:15, skipping insertion in model container [2018-11-28 12:21:15,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:21:15" (1/1) ... [2018-11-28 12:21:15,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:21:15,244 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:21:15,335 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:21:15,338 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:21:15,349 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:21:15,357 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:21:15,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:15 WrapperNode [2018-11-28 12:21:15,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:21:15,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:21:15,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:21:15,357 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:21:15,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:15" (1/1) ... [2018-11-28 12:21:15,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:15" (1/1) ... [2018-11-28 12:21:15,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:21:15,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:21:15,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:21:15,372 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:21:15,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:15" (1/1) ... [2018-11-28 12:21:15,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:15" (1/1) ... [2018-11-28 12:21:15,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:15" (1/1) ... [2018-11-28 12:21:15,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:15" (1/1) ... [2018-11-28 12:21:15,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:15" (1/1) ... [2018-11-28 12:21:15,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:15" (1/1) ... [2018-11-28 12:21:15,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:15" (1/1) ... [2018-11-28 12:21:15,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:21:15,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:21:15,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:21:15,387 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:21:15,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:21:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:21:15,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:21:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:21:15,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:21:15,457 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:21:15,457 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:21:15,549 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:21:15,549 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 12:21:15,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:15 BoogieIcfgContainer [2018-11-28 12:21:15,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:21:15,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:21:15,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:21:15,552 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:21:15,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:21:15" (1/3) ... [2018-11-28 12:21:15,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcf60af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:21:15, skipping insertion in model container [2018-11-28 12:21:15,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:15" (2/3) ... [2018-11-28 12:21:15,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fcf60af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:21:15, skipping insertion in model container [2018-11-28 12:21:15,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:15" (3/3) ... [2018-11-28 12:21:15,554 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex1.02_false-no-overflow.c [2018-11-28 12:21:15,560 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:21:15,564 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 12:21:15,575 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 12:21:15,595 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:21:15,596 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:21:15,596 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:21:15,596 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:21:15,596 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:21:15,596 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:21:15,596 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:21:15,596 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:21:15,596 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:21:15,608 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-28 12:21:15,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 12:21:15,612 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:21:15,613 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:21:15,615 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:21:15,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:21:15,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1646049978, now seen corresponding path program 1 times [2018-11-28 12:21:15,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:21:15,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:21:15,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:21:15,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:21:15,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:21:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:21:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:21:15,691 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:21:15,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:21:15 BoogieIcfgContainer [2018-11-28 12:21:15,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:21:15,706 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:21:15,706 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:21:15,706 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:21:15,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:15" (3/4) ... [2018-11-28 12:21:15,708 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 12:21:15,732 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_983412fe-2ac9-4f54-96a1-b0e70b2ca356/bin-2019/uautomizer/witness.graphml [2018-11-28 12:21:15,732 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:21:15,733 INFO L168 Benchmark]: Toolchain (without parser) took 508.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -135.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:21:15,734 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:21:15,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 130.97 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:21:15,735 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.60 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:21:15,735 INFO L168 Benchmark]: Boogie Preprocessor took 14.62 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:21:15,735 INFO L168 Benchmark]: RCFGBuilder took 162.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:21:15,736 INFO L168 Benchmark]: TraceAbstraction took 155.22 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:21:15,736 INFO L168 Benchmark]: Witness Printer took 26.97 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:21:15,739 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 130.97 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.60 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.62 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 162.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 155.22 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 26.97 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, oldx; [L24] x = __VERIFIER_nondet_int() [L25] oldx = __VERIFIER_nondet_int() [L26] x > 0 && x < 100 && x >= 2*oldx + 10 VAL [x=2, x=1073741824, x > 0 && x < 100 && x >= 2*oldx + 10=1] [L26] 2*oldx VAL [x=2, x=1073741824, x > 0 && x < 100 && x >= 2*oldx + 10=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...