./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.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_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/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 054e86c0b11592f66f6efc3e0f84c6f8bee49b59 ................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:37:09,071 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:37:09,072 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:37:09,079 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:37:09,079 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:37:09,080 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:37:09,081 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:37:09,082 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:37:09,083 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:37:09,083 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:37:09,084 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:37:09,084 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:37:09,085 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:37:09,085 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:37:09,086 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:37:09,086 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:37:09,087 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:37:09,088 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:37:09,089 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:37:09,090 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:37:09,091 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:37:09,092 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:37:09,093 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:37:09,094 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:37:09,094 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:37:09,094 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:37:09,095 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:37:09,096 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:37:09,096 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:37:09,097 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:37:09,097 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:37:09,097 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:37:09,098 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:37:09,098 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:37:09,098 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:37:09,099 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:37:09,099 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 12:37:09,108 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:37:09,108 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:37:09,109 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:37:09,109 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:37:09,109 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:37:09,110 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:37:09,110 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:37:09,110 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:37:09,110 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:37:09,110 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:37:09,110 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:37:09,110 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:37:09,110 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:37:09,110 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:37:09,111 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 12:37:09,111 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:37:09,111 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:37:09,111 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:37:09,111 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:37:09,111 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:37:09,111 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:37:09,111 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:37:09,111 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:37:09,111 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:37:09,111 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:37:09,111 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:37:09,111 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:37:09,112 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:37:09,112 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:37:09,112 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_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/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 -> 054e86c0b11592f66f6efc3e0f84c6f8bee49b59 [2018-11-28 12:37:09,133 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:37:09,141 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:37:09,143 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:37:09,144 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:37:09,144 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:37:09,144 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 12:37:09,180 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/bin-2019/uautomizer/data/ecb8dca20/038721a3d22c406aa09f10f5b1e065f9/FLAG3a8f68640 [2018-11-28 12:37:09,562 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:37:09,562 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 12:37:09,566 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/bin-2019/uautomizer/data/ecb8dca20/038721a3d22c406aa09f10f5b1e065f9/FLAG3a8f68640 [2018-11-28 12:37:09,573 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/bin-2019/uautomizer/data/ecb8dca20/038721a3d22c406aa09f10f5b1e065f9 [2018-11-28 12:37:09,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:37:09,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:37:09,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:37:09,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:37:09,578 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:37:09,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:37:09" (1/1) ... [2018-11-28 12:37:09,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e494148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:37:09, skipping insertion in model container [2018-11-28 12:37:09,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:37:09" (1/1) ... [2018-11-28 12:37:09,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:37:09,594 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:37:09,676 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:37:09,678 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:37:09,686 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:37:09,694 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:37:09,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:37:09 WrapperNode [2018-11-28 12:37:09,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:37:09,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:37:09,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:37:09,695 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:37:09,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:37:09" (1/1) ... [2018-11-28 12:37:09,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:37:09" (1/1) ... [2018-11-28 12:37:09,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:37:09,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:37:09,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:37:09,707 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:37:09,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:37:09" (1/1) ... [2018-11-28 12:37:09,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:37:09" (1/1) ... [2018-11-28 12:37:09,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:37:09" (1/1) ... [2018-11-28 12:37:09,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:37:09" (1/1) ... [2018-11-28 12:37:09,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:37:09" (1/1) ... [2018-11-28 12:37:09,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:37:09" (1/1) ... [2018-11-28 12:37:09,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:37:09" (1/1) ... [2018-11-28 12:37:09,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:37:09,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:37:09,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:37:09,755 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:37:09,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:37:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/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 12:37:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:37:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:37:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:37:09,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:37:09,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:37:09,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:37:09,916 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:37:09,916 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 12:37:09,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:37:09 BoogieIcfgContainer [2018-11-28 12:37:09,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:37:09,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:37:09,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:37:09,920 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:37:09,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:37:09" (1/3) ... [2018-11-28 12:37:09,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7361ffd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:37:09, skipping insertion in model container [2018-11-28 12:37:09,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:37:09" (2/3) ... [2018-11-28 12:37:09,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7361ffd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:37:09, skipping insertion in model container [2018-11-28 12:37:09,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:37:09" (3/3) ... [2018-11-28 12:37:09,923 INFO L112 eAbstractionObserver]: Analyzing ICFG Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-28 12:37:09,931 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:37:09,938 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 12:37:09,952 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 12:37:09,977 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:37:09,977 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:37:09,978 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:37:09,978 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:37:09,978 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:37:09,978 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:37:09,978 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:37:09,978 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:37:09,978 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:37:09,992 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-28 12:37:09,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 12:37:09,997 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:37:09,997 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:37:09,999 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:37:10,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:37:10,004 INFO L82 PathProgramCache]: Analyzing trace with hash 998107396, now seen corresponding path program 1 times [2018-11-28 12:37:10,005 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:37:10,006 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:37:10,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:37:10,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:37:10,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:37:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:37:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:37:10,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:37:10,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:37:10,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:37:10,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:37:10,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:37:10,157 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-11-28 12:37:10,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:37:10,186 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-11-28 12:37:10,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:37:10,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 12:37:10,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:37:10,194 INFO L225 Difference]: With dead ends: 25 [2018-11-28 12:37:10,194 INFO L226 Difference]: Without dead ends: 14 [2018-11-28 12:37:10,197 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 [2018-11-28 12:37:10,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-28 12:37:10,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-28 12:37:10,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-28 12:37:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-11-28 12:37:10,222 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 7 [2018-11-28 12:37:10,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:37:10,222 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-11-28 12:37:10,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:37:10,222 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-11-28 12:37:10,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 12:37:10,222 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:37:10,223 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:37:10,223 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:37:10,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:37:10,223 INFO L82 PathProgramCache]: Analyzing trace with hash 876558251, now seen corresponding path program 1 times [2018-11-28 12:37:10,223 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:37:10,224 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:37:10,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:37:10,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:37:10,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:37:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:37:10,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:37:10,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:37:10,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:37:10,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:37:10,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:37:10,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:37:10,245 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2018-11-28 12:37:10,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:37:10,267 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-11-28 12:37:10,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:37:10,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-28 12:37:10,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:37:10,268 INFO L225 Difference]: With dead ends: 15 [2018-11-28 12:37:10,268 INFO L226 Difference]: Without dead ends: 14 [2018-11-28 12:37:10,269 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 [2018-11-28 12:37:10,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-28 12:37:10,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-11-28 12:37:10,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-28 12:37:10,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-11-28 12:37:10,272 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2018-11-28 12:37:10,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:37:10,272 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-11-28 12:37:10,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:37:10,272 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-11-28 12:37:10,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 12:37:10,272 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:37:10,272 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:37:10,272 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:37:10,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:37:10,273 INFO L82 PathProgramCache]: Analyzing trace with hash 558890797, now seen corresponding path program 1 times [2018-11-28 12:37:10,273 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:37:10,273 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:37:10,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:37:10,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:37:10,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:37:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:37:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:37:10,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:37:10,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:37:10,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:37:10,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:37:10,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:37:10,292 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2018-11-28 12:37:10,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:37:10,302 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-11-28 12:37:10,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:37:10,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 12:37:10,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:37:10,303 INFO L225 Difference]: With dead ends: 13 [2018-11-28 12:37:10,303 INFO L226 Difference]: Without dead ends: 12 [2018-11-28 12:37:10,303 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 [2018-11-28 12:37:10,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-28 12:37:10,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 12:37:10,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 12:37:10,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2018-11-28 12:37:10,306 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2018-11-28 12:37:10,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:37:10,306 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-11-28 12:37:10,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:37:10,306 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-11-28 12:37:10,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 12:37:10,306 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:37:10,306 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:37:10,307 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:37:10,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:37:10,307 INFO L82 PathProgramCache]: Analyzing trace with hash 145745577, now seen corresponding path program 1 times [2018-11-28 12:37:10,307 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:37:10,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:37:10,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:37:10,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:37:10,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:37:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:37:10,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:37:10,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:37:10,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:37:10,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:37:10,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:37:10,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:37:10,328 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 3 states. [2018-11-28 12:37:10,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:37:10,350 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-11-28 12:37:10,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:37:10,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-28 12:37:10,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:37:10,351 INFO L225 Difference]: With dead ends: 13 [2018-11-28 12:37:10,351 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:37:10,351 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 [2018-11-28 12:37:10,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:37:10,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:37:10,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:37:10,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:37:10,352 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-28 12:37:10,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:37:10,352 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:37:10,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:37:10,352 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:37:10,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:37:10,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:37:10,370 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 12:37:10,371 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:37:10,371 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:37:10,371 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:37:10,371 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:37:10,371 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:37:10,371 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 15 27) no Hoare annotation was computed. [2018-11-28 12:37:10,371 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 24) no Hoare annotation was computed. [2018-11-28 12:37:10,371 INFO L444 ceAbstractionStarter]: At program point L21-2(lines 19 25) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= main_~y~0 2147483647)) [2018-11-28 12:37:10,371 INFO L448 ceAbstractionStarter]: For program point L19-2(lines 19 25) no Hoare annotation was computed. [2018-11-28 12:37:10,371 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-28 12:37:10,371 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 15 27) no Hoare annotation was computed. [2018-11-28 12:37:10,371 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 12:37:10,371 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 15 27) the Hoare annotation is: true [2018-11-28 12:37:10,371 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-28 12:37:10,372 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-28 12:37:10,372 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-28 12:37:10,372 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-28 12:37:10,372 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-28 12:37:10,372 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 12:37:10,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:37:10 BoogieIcfgContainer [2018-11-28 12:37:10,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:37:10,379 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:37:10,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:37:10,379 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:37:10,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:37:09" (3/4) ... [2018-11-28 12:37:10,382 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:37:10,385 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:37:10,386 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:37:10,388 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 12:37:10,388 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 12:37:10,388 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:37:10,413 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c5aeb69e-cb72-4aef-87eb-8c476e5df01d/bin-2019/uautomizer/witness.graphml [2018-11-28 12:37:10,414 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:37:10,414 INFO L168 Benchmark]: Toolchain (without parser) took 838.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -111.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:37:10,415 INFO L168 Benchmark]: CDTParser took 0.10 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 12:37:10,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 118.35 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:37:10,415 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.35 ms. Allocated memory is still 1.0 GB. Free memory is still 941.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:37:10,416 INFO L168 Benchmark]: Boogie Preprocessor took 47.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 941.5 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:37:10,416 INFO L168 Benchmark]: RCFGBuilder took 161.88 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: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:37:10,416 INFO L168 Benchmark]: TraceAbstraction took 462.07 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: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:37:10,417 INFO L168 Benchmark]: Witness Printer took 34.51 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:37:10,419 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 118.35 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.35 ms. Allocated memory is still 1.0 GB. Free memory is still 941.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 941.5 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 161.88 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: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 462.07 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: 46.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 11.5 GB. * Witness Printer took 34.51 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. SAFE Result, 0.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 14 SDslu, 21 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 11 HoareAnnotationTreeSize, 5 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 508 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...