./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/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 ef49038d2ab74dd97b86bf2af92359124ff338d3 ............................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 21:43:17,149 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:43:17,151 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:43:17,159 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:43:17,159 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:43:17,160 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:43:17,161 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:43:17,162 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:43:17,163 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:43:17,164 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:43:17,165 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:43:17,165 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:43:17,166 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:43:17,166 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:43:17,167 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:43:17,168 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:43:17,169 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:43:17,170 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:43:17,172 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:43:17,173 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:43:17,174 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:43:17,175 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:43:17,176 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:43:17,177 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:43:17,177 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:43:17,178 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:43:17,178 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:43:17,179 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:43:17,180 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:43:17,181 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:43:17,181 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:43:17,181 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:43:17,182 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:43:17,182 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:43:17,183 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:43:17,183 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:43:17,183 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-22 21:43:17,195 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:43:17,195 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:43:17,196 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 21:43:17,196 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 21:43:17,196 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 21:43:17,197 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 21:43:17,197 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 21:43:17,197 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:43:17,197 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 21:43:17,197 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 21:43:17,197 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:43:17,198 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 21:43:17,198 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 21:43:17,198 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 21:43:17,198 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-22 21:43:17,198 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:43:17,198 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:43:17,198 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 21:43:17,199 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:43:17,199 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:43:17,199 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 21:43:17,199 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 21:43:17,199 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:43:17,199 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:43:17,200 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 21:43:17,200 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 21:43:17,200 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 21:43:17,200 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 21:43:17,200 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 21:43:17,200 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_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/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 -> ef49038d2ab74dd97b86bf2af92359124ff338d3 [2018-11-22 21:43:17,224 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:43:17,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:43:17,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:43:17,237 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:43:17,237 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:43:17,238 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c [2018-11-22 21:43:17,281 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/bin-2019/uautomizer/data/9133db6bc/57e49267506546e195d27574cbded107/FLAGcdd498ffa [2018-11-22 21:43:17,619 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:43:17,620 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c [2018-11-22 21:43:17,625 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/bin-2019/uautomizer/data/9133db6bc/57e49267506546e195d27574cbded107/FLAGcdd498ffa [2018-11-22 21:43:17,637 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/bin-2019/uautomizer/data/9133db6bc/57e49267506546e195d27574cbded107 [2018-11-22 21:43:17,640 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:43:17,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:43:17,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:43:17,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:43:17,645 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:43:17,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:43:17" (1/1) ... [2018-11-22 21:43:17,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e5f2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:17, skipping insertion in model container [2018-11-22 21:43:17,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:43:17" (1/1) ... [2018-11-22 21:43:17,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:43:17,668 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:43:17,789 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:43:17,792 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:43:17,803 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:43:17,812 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:43:17,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:17 WrapperNode [2018-11-22 21:43:17,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:43:17,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:43:17,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:43:17,813 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:43:17,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:17" (1/1) ... [2018-11-22 21:43:17,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:17" (1/1) ... [2018-11-22 21:43:17,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:43:17,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:43:17,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:43:17,828 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:43:17,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:17" (1/1) ... [2018-11-22 21:43:17,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:17" (1/1) ... [2018-11-22 21:43:17,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:17" (1/1) ... [2018-11-22 21:43:17,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:17" (1/1) ... [2018-11-22 21:43:17,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:17" (1/1) ... [2018-11-22 21:43:17,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:17" (1/1) ... [2018-11-22 21:43:17,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:17" (1/1) ... [2018-11-22 21:43:17,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:43:17,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:43:17,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:43:17,842 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:43:17,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/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 [2018-11-22 21:43:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 21:43:17,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 21:43:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:43:17,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:43:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 21:43:17,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 21:43:18,017 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:43:18,017 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-22 21:43:18,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:43:18 BoogieIcfgContainer [2018-11-22 21:43:18,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:43:18,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 21:43:18,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 21:43:18,021 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 21:43:18,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:43:17" (1/3) ... [2018-11-22 21:43:18,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca00cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:43:18, skipping insertion in model container [2018-11-22 21:43:18,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:17" (2/3) ... [2018-11-22 21:43:18,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca00cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:43:18, skipping insertion in model container [2018-11-22 21:43:18,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:43:18" (3/3) ... [2018-11-22 21:43:18,023 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c [2018-11-22 21:43:18,029 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 21:43:18,034 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-22 21:43:18,045 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-22 21:43:18,067 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 21:43:18,067 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 21:43:18,068 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 21:43:18,068 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 21:43:18,068 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:43:18,068 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:43:18,068 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 21:43:18,068 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:43:18,068 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 21:43:18,080 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2018-11-22 21:43:18,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-22 21:43:18,085 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:43:18,085 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:43:18,087 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-22 21:43:18,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:43:18,092 INFO L82 PathProgramCache]: Analyzing trace with hash 703472058, now seen corresponding path program 1 times [2018-11-22 21:43:18,093 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:43:18,093 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:43:18,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:43:18,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:43:18,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:43:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:43:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:43:18,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:43:18,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 21:43:18,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 21:43:18,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 21:43:18,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:43:18,217 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2018-11-22 21:43:18,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:43:18,296 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-11-22 21:43:18,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 21:43:18,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-11-22 21:43:18,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:43:18,306 INFO L225 Difference]: With dead ends: 20 [2018-11-22 21:43:18,306 INFO L226 Difference]: Without dead ends: 9 [2018-11-22 21:43:18,309 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-22 21:43:18,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-11-22 21:43:18,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-11-22 21:43:18,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-22 21:43:18,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-11-22 21:43:18,341 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-11-22 21:43:18,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:43:18,342 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-11-22 21:43:18,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 21:43:18,342 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-11-22 21:43:18,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-22 21:43:18,342 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:43:18,342 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:43:18,343 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-22 21:43:18,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:43:18,343 INFO L82 PathProgramCache]: Analyzing trace with hash 332797365, now seen corresponding path program 1 times [2018-11-22 21:43:18,343 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:43:18,343 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:43:18,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:43:18,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:43:18,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:43:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:43:18,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:43:18,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:43:18,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-22 21:43:18,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 21:43:18,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 21:43:18,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 21:43:18,380 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2018-11-22 21:43:18,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:43:18,393 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-11-22 21:43:18,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 21:43:18,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-22 21:43:18,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:43:18,396 INFO L225 Difference]: With dead ends: 9 [2018-11-22 21:43:18,396 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 21:43:18,397 INFO L631 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 [2018-11-22 21:43:18,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 21:43:18,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 21:43:18,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 21:43:18,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 21:43:18,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-11-22 21:43:18,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:43:18,399 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:43:18,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 21:43:18,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 21:43:18,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 21:43:18,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-22 21:43:18,426 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-22 21:43:18,426 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-22 21:43:18,426 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-22 21:43:18,426 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-22 21:43:18,426 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-22 21:43:18,427 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-22 21:43:18,427 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-11-22 21:43:18,427 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 22 31) the Hoare annotation is: true [2018-11-22 21:43:18,427 INFO L448 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-11-22 21:43:18,427 INFO L448 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-11-22 21:43:18,427 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 22 31) no Hoare annotation was computed. [2018-11-22 21:43:18,427 INFO L444 ceAbstractionStarter]: At program point L26-2(lines 26 29) the Hoare annotation is: (<= main_~x~0 2147483647) [2018-11-22 21:43:18,428 INFO L448 ceAbstractionStarter]: For program point L26-3(lines 26 29) no Hoare annotation was computed. [2018-11-22 21:43:18,428 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 22 31) no Hoare annotation was computed. [2018-11-22 21:43:18,428 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-11-22 21:43:18,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:43:18 BoogieIcfgContainer [2018-11-22 21:43:18,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 21:43:18,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:43:18,437 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:43:18,437 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:43:18,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:43:18" (3/4) ... [2018-11-22 21:43:18,441 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 21:43:18,446 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-22 21:43:18,446 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-22 21:43:18,449 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-22 21:43:18,450 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-22 21:43:18,450 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-22 21:43:18,481 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_42ad8949-46a5-4ea4-b6b5-ba21f32a3d9f/bin-2019/uautomizer/witness.graphml [2018-11-22 21:43:18,482 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:43:18,482 INFO L168 Benchmark]: Toolchain (without parser) took 841.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -169.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:43:18,484 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:43:18,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.04 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:43:18,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.62 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:43:18,485 INFO L168 Benchmark]: Boogie Preprocessor took 14.28 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:43:18,486 INFO L168 Benchmark]: RCFGBuilder took 175.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -213.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-22 21:43:18,486 INFO L168 Benchmark]: TraceAbstraction took 418.37 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:43:18,487 INFO L168 Benchmark]: Witness Printer took 44.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:43:18,490 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.04 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.62 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.28 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 175.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -213.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 418.37 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * Witness Printer took 44.48 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: - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 2 error locations. SAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 8 SDslu, 18 SDs, 0 SdLazy, 12 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 7 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...