./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_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_226a2e7e-9eb5-478d-8a4c-5fb17384c944/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/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 f560e32afd5a40adf4a98abbf810cb377947c4f4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:44:59,447 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:44:59,449 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:44:59,456 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:44:59,457 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:44:59,457 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:44:59,458 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:44:59,459 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:44:59,460 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:44:59,461 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:44:59,461 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:44:59,462 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:44:59,462 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:44:59,463 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:44:59,463 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:44:59,464 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:44:59,464 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:44:59,465 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:44:59,466 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:44:59,467 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:44:59,468 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:44:59,469 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:44:59,470 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:44:59,470 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:44:59,470 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:44:59,471 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:44:59,471 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:44:59,471 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:44:59,472 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:44:59,473 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:44:59,473 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:44:59,474 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:44:59,474 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:44:59,474 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:44:59,475 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:44:59,475 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:44:59,475 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-23 14:44:59,485 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:44:59,485 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:44:59,486 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:44:59,486 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:44:59,486 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:44:59,487 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:44:59,487 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:44:59,487 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:44:59,487 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 14:44:59,487 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:44:59,487 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:44:59,487 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:44:59,487 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:44:59,488 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:44:59,488 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 14:44:59,488 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:44:59,488 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:44:59,488 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:44:59,488 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:44:59,488 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:44:59,489 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:44:59,489 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:44:59,489 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:44:59,489 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:44:59,489 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:44:59,489 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:44:59,489 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:44:59,489 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:44:59,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:44:59,490 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_226a2e7e-9eb5-478d-8a4c-5fb17384c944/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 -> f560e32afd5a40adf4a98abbf810cb377947c4f4 [2018-11-23 14:44:59,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:44:59,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:44:59,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:44:59,527 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:44:59,528 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:44:59,528 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-23 14:44:59,572 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/bin-2019/uautomizer/data/9db20bef2/4810d124c2f148bd93e58082b0e01f14/FLAGb7b53bca9 [2018-11-23 14:44:59,968 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:44:59,969 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-23 14:44:59,973 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/bin-2019/uautomizer/data/9db20bef2/4810d124c2f148bd93e58082b0e01f14/FLAGb7b53bca9 [2018-11-23 14:44:59,983 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/bin-2019/uautomizer/data/9db20bef2/4810d124c2f148bd93e58082b0e01f14 [2018-11-23 14:44:59,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:44:59,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:44:59,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:44:59,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:44:59,989 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:44:59,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:44:59" (1/1) ... [2018-11-23 14:44:59,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd21f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:44:59, skipping insertion in model container [2018-11-23 14:44:59,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:44:59" (1/1) ... [2018-11-23 14:44:59,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:45:00,008 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:45:00,114 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:45:00,116 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:45:00,126 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:45:00,134 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:45:00,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:00 WrapperNode [2018-11-23 14:45:00,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:45:00,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:45:00,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:45:00,135 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:45:00,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:00" (1/1) ... [2018-11-23 14:45:00,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:00" (1/1) ... [2018-11-23 14:45:00,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:45:00,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:45:00,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:45:00,147 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:45:00,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:00" (1/1) ... [2018-11-23 14:45:00,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:00" (1/1) ... [2018-11-23 14:45:00,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:00" (1/1) ... [2018-11-23 14:45:00,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:00" (1/1) ... [2018-11-23 14:45:00,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:00" (1/1) ... [2018-11-23 14:45:00,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:00" (1/1) ... [2018-11-23 14:45:00,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:00" (1/1) ... [2018-11-23 14:45:00,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:45:00,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:45:00,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:45:00,159 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:45:00,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/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 [2018-11-23 14:45:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 14:45:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 14:45:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:45:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:45:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 14:45:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 14:45:00,327 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:45:00,327 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 14:45:00,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:00 BoogieIcfgContainer [2018-11-23 14:45:00,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:45:00,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:45:00,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:45:00,330 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:45:00,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:44:59" (1/3) ... [2018-11-23 14:45:00,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a436c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:45:00, skipping insertion in model container [2018-11-23 14:45:00,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:00" (2/3) ... [2018-11-23 14:45:00,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a436c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:45:00, skipping insertion in model container [2018-11-23 14:45:00,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:00" (3/3) ... [2018-11-23 14:45:00,333 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-23 14:45:00,338 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:45:00,343 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-23 14:45:00,352 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-23 14:45:00,371 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:45:00,372 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:45:00,372 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:45:00,372 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:45:00,372 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:45:00,372 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:45:00,372 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:45:00,372 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:45:00,372 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:45:00,385 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-23 14:45:00,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:45:00,388 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:45:00,389 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:45:00,391 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:45:00,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:45:00,394 INFO L82 PathProgramCache]: Analyzing trace with hash 350361843, now seen corresponding path program 1 times [2018-11-23 14:45:00,396 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:45:00,396 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:45:00,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:00,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:45:00,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:00,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:45:00,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:45:00,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 14:45:00,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 14:45:00,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:45:00,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:45:00,519 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2018-11-23 14:45:00,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:45:00,594 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2018-11-23 14:45:00,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 14:45:00,596 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-23 14:45:00,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:45:00,602 INFO L225 Difference]: With dead ends: 34 [2018-11-23 14:45:00,602 INFO L226 Difference]: Without dead ends: 20 [2018-11-23 14:45:00,604 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 [2018-11-23 14:45:00,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-23 14:45:00,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2018-11-23 14:45:00,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-23 14:45:00,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-11-23 14:45:00,625 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2018-11-23 14:45:00,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:45:00,625 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-11-23 14:45:00,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 14:45:00,625 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-11-23 14:45:00,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:45:00,625 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:45:00,626 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:45:00,626 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:45:00,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:45:00,626 INFO L82 PathProgramCache]: Analyzing trace with hash 350362035, now seen corresponding path program 1 times [2018-11-23 14:45:00,626 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:45:00,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:45:00,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:00,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:45:00,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:00,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:45:00,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:45:00,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 14:45:00,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 14:45:00,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:45:00,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:45:00,660 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 4 states. [2018-11-23 14:45:00,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:45:00,725 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2018-11-23 14:45:00,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 14:45:00,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-23 14:45:00,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:45:00,726 INFO L225 Difference]: With dead ends: 20 [2018-11-23 14:45:00,726 INFO L226 Difference]: Without dead ends: 19 [2018-11-23 14:45:00,727 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 [2018-11-23 14:45:00,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-23 14:45:00,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2018-11-23 14:45:00,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 14:45:00,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-23 14:45:00,729 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2018-11-23 14:45:00,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:45:00,730 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-23 14:45:00,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 14:45:00,730 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-23 14:45:00,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:45:00,730 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:45:00,730 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:45:00,730 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:45:00,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:45:00,730 INFO L82 PathProgramCache]: Analyzing trace with hash -2023684702, now seen corresponding path program 1 times [2018-11-23 14:45:00,731 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:45:00,731 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:45:00,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:00,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:45:00,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:00,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:45:00,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:45:00,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:45:00,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:45:00,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:45:00,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:45:00,747 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-11-23 14:45:00,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:45:00,771 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-23 14:45:00,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:45:00,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 14:45:00,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:45:00,772 INFO L225 Difference]: With dead ends: 19 [2018-11-23 14:45:00,772 INFO L226 Difference]: Without dead ends: 18 [2018-11-23 14:45:00,772 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 [2018-11-23 14:45:00,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-23 14:45:00,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-11-23 14:45:00,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 14:45:00,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-23 14:45:00,776 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 10 [2018-11-23 14:45:00,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:45:00,776 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-23 14:45:00,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:45:00,776 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-23 14:45:00,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:45:00,776 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:45:00,777 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:45:00,777 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:45:00,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:45:00,777 INFO L82 PathProgramCache]: Analyzing trace with hash -2023678744, now seen corresponding path program 1 times [2018-11-23 14:45:00,777 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:45:00,777 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:45:00,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:00,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:45:00,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:00,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:45:00,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:45:00,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:45:00,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:45:00,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:45:00,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:45:00,793 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-11-23 14:45:00,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:45:00,823 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2018-11-23 14:45:00,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:45:00,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 14:45:00,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:45:00,824 INFO L225 Difference]: With dead ends: 29 [2018-11-23 14:45:00,824 INFO L226 Difference]: Without dead ends: 18 [2018-11-23 14:45:00,824 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 [2018-11-23 14:45:00,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-23 14:45:00,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-23 14:45:00,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 14:45:00,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-23 14:45:00,827 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2018-11-23 14:45:00,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:45:00,827 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-23 14:45:00,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:45:00,828 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-23 14:45:00,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 14:45:00,828 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:45:00,828 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:45:00,828 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:45:00,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:45:00,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1042517416, now seen corresponding path program 1 times [2018-11-23 14:45:00,829 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:45:00,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:45:00,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:00,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:45:00,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:00,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:45:00,854 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:45:00,854 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:45:00,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:45:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:00,873 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:45:00,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:45:00,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 14:45:00,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-11-23 14:45:00,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 14:45:00,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 14:45:00,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:45:00,933 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 8 states. [2018-11-23 14:45:00,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:45:00,963 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-23 14:45:00,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 14:45:00,963 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-23 14:45:00,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:45:00,964 INFO L225 Difference]: With dead ends: 20 [2018-11-23 14:45:00,964 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 14:45:00,964 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-11-23 14:45:00,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 14:45:00,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 14:45:00,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 14:45:00,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 14:45:00,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-23 14:45:00,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:45:00,965 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:45:00,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 14:45:00,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:45:00,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:45:00,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 14:45:01,025 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 14:45:01,025 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:45:01,025 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:45:01,025 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 14:45:01,026 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 14:45:01,026 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 14:45:01,026 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-23 14:45:01,026 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 28) no Hoare annotation was computed. [2018-11-23 14:45:01,026 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-23 14:45:01,026 INFO L448 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-23 14:45:01,026 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-23 14:45:01,026 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-23 14:45:01,026 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 26) no Hoare annotation was computed. [2018-11-23 14:45:01,026 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 26) no Hoare annotation was computed. [2018-11-23 14:45:01,026 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 28) no Hoare annotation was computed. [2018-11-23 14:45:01,027 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-23 14:45:01,027 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-23 14:45:01,027 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 28) the Hoare annotation is: true [2018-11-23 14:45:01,027 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 24) no Hoare annotation was computed. [2018-11-23 14:45:01,027 INFO L444 ceAbstractionStarter]: At program point L20-2(lines 19 25) the Hoare annotation is: (let ((.cse0 (<= main_~n~0 2147483647)) (.cse1 (< 0 main_~m~0))) (or (and .cse0 .cse1 (<= main_~m~0 2147483647) (<= (+ main_~i~0 main_~m~0) 2147483647)) (and (<= main_~i~0 2147483647) .cse0 (<= main_~m~0 main_~i~0) .cse1))) [2018-11-23 14:45:01,027 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-23 14:45:01,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:45:01 BoogieIcfgContainer [2018-11-23 14:45:01,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:45:01,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:45:01,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:45:01,036 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:45:01,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:00" (3/4) ... [2018-11-23 14:45:01,039 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:45:01,043 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 14:45:01,043 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 14:45:01,045 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 14:45:01,046 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 14:45:01,046 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 14:45:01,074 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_226a2e7e-9eb5-478d-8a4c-5fb17384c944/bin-2019/uautomizer/witness.graphml [2018-11-23 14:45:01,074 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:45:01,075 INFO L168 Benchmark]: Toolchain (without parser) took 1088.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 960.3 MB in the beginning and 1.0 GB in the end (delta: -71.4 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:01,076 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:45:01,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.90 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:01,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.91 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:45:01,077 INFO L168 Benchmark]: Boogie Preprocessor took 11.93 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:01,077 INFO L168 Benchmark]: RCFGBuilder took 168.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -176.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:01,077 INFO L168 Benchmark]: TraceAbstraction took 707.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.1 MB). Peak memory consumption was 85.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:01,077 INFO L168 Benchmark]: Witness Printer took 38.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:01,079 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 147.90 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.91 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.93 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 168.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -176.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 707.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.1 MB). Peak memory consumption was 85.1 MB. Max. memory is 11.5 GB. * Witness Printer took 38.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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: (((n <= 2147483647 && 0 < m) && m <= 2147483647) && i + m <= 2147483647) || (((i <= 2147483647 && n <= 2147483647) && m <= i) && 0 < m) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 4 error locations. SAFE Result, 0.6s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 40 SDtfs, 61 SDslu, 52 SDs, 0 SdLazy, 87 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 33 HoareAnnotationTreeSize, 5 FomulaSimplifications, 99 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 1732 SizeOfPredicates, 1 NumberOfNonLiveVariables, 31 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...