./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_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_8fcd2669-ab96-49b2-af20-e3970e23c28f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8fcd2669-ab96-49b2-af20-e3970e23c28f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8fcd2669-ab96-49b2-af20-e3970e23c28f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8fcd2669-ab96-49b2-af20-e3970e23c28f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8fcd2669-ab96-49b2-af20-e3970e23c28f/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8fcd2669-ab96-49b2-af20-e3970e23c28f/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 f9de9875f09e594325a645528f016ce12ac5c646 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:20:56,430 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:20:56,432 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:20:56,440 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:20:56,440 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:20:56,441 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:20:56,441 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:20:56,443 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:20:56,444 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:20:56,444 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:20:56,445 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:20:56,445 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:20:56,446 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:20:56,447 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:20:56,447 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:20:56,448 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:20:56,448 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:20:56,450 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:20:56,451 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:20:56,452 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:20:56,453 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:20:56,454 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:20:56,455 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:20:56,455 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:20:56,456 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:20:56,456 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:20:56,457 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:20:56,457 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:20:56,458 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:20:56,459 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:20:56,459 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:20:56,459 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:20:56,460 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:20:56,460 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:20:56,460 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:20:56,461 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:20:56,461 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8fcd2669-ab96-49b2-af20-e3970e23c28f/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-23 00:20:56,470 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:20:56,471 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:20:56,471 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 00:20:56,471 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 00:20:56,472 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 00:20:56,472 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 00:20:56,472 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 00:20:56,472 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:20:56,472 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 00:20:56,473 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 00:20:56,473 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:20:56,473 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 00:20:56,473 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:20:56,473 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 00:20:56,473 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 00:20:56,473 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:20:56,474 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:20:56,474 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 00:20:56,474 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:20:56,474 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 00:20:56,474 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:20:56,474 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 00:20:56,474 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:20:56,474 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:20:56,475 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:20:56,475 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 00:20:56,475 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 00:20:56,475 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:20:56,475 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 00:20:56,475 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_8fcd2669-ab96-49b2-af20-e3970e23c28f/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 -> f9de9875f09e594325a645528f016ce12ac5c646 [2018-11-23 00:20:56,498 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:20:56,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:20:56,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:20:56,509 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:20:56,509 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:20:56,510 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8fcd2669-ab96-49b2-af20-e3970e23c28f/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-23 00:20:56,546 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8fcd2669-ab96-49b2-af20-e3970e23c28f/bin-2019/uautomizer/data/6f6671ab5/989071c63ac3486789bb05e4a995c715/FLAGe453ac787 [2018-11-23 00:20:56,846 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:20:56,846 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8fcd2669-ab96-49b2-af20-e3970e23c28f/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-23 00:20:56,850 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8fcd2669-ab96-49b2-af20-e3970e23c28f/bin-2019/uautomizer/data/6f6671ab5/989071c63ac3486789bb05e4a995c715/FLAGe453ac787 [2018-11-23 00:20:56,858 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8fcd2669-ab96-49b2-af20-e3970e23c28f/bin-2019/uautomizer/data/6f6671ab5/989071c63ac3486789bb05e4a995c715 [2018-11-23 00:20:56,861 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:20:56,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:20:56,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:20:56,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:20:56,865 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:20:56,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:20:56" (1/1) ... [2018-11-23 00:20:56,868 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 12:20:56, skipping insertion in model container [2018-11-23 00:20:56,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:20:56" (1/1) ... [2018-11-23 00:20:56,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:20:56,884 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:20:56,986 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:20:56,988 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:20:56,998 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:20:57,006 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:20:57,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:57 WrapperNode [2018-11-23 00:20:57,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:20:57,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:20:57,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:20:57,007 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:20:57,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:57" (1/1) ... [2018-11-23 00:20:57,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:57" (1/1) ... [2018-11-23 00:20:57,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:20:57,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:20:57,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:20:57,025 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:20:57,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:57" (1/1) ... [2018-11-23 00:20:57,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:57" (1/1) ... [2018-11-23 00:20:57,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:57" (1/1) ... [2018-11-23 00:20:57,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:57" (1/1) ... [2018-11-23 00:20:57,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:57" (1/1) ... [2018-11-23 00:20:57,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:57" (1/1) ... [2018-11-23 00:20:57,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:57" (1/1) ... [2018-11-23 00:20:57,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:20:57,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:20:57,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:20:57,041 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:20:57,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8fcd2669-ab96-49b2-af20-e3970e23c28f/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 00:20:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 00:20:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 00:20:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:20:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:20:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 00:20:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 00:20:57,234 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:20:57,234 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 00:20:57,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:20:57 BoogieIcfgContainer [2018-11-23 00:20:57,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:20:57,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 00:20:57,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 00:20:57,237 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 00:20:57,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:20:56" (1/3) ... [2018-11-23 00:20:57,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266844e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:20:57, skipping insertion in model container [2018-11-23 00:20:57,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:20:57" (2/3) ... [2018-11-23 00:20:57,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266844e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:20:57, skipping insertion in model container [2018-11-23 00:20:57,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:20:57" (3/3) ... [2018-11-23 00:20:57,240 INFO L112 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-23 00:20:57,249 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 00:20:57,253 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-23 00:20:57,266 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-23 00:20:57,291 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 00:20:57,292 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 00:20:57,292 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 00:20:57,292 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 00:20:57,292 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 00:20:57,292 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 00:20:57,292 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 00:20:57,292 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 00:20:57,292 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 00:20:57,307 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-23 00:20:57,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 00:20:57,312 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:20:57,312 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:20:57,314 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 00:20:57,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:20:57,319 INFO L82 PathProgramCache]: Analyzing trace with hash -623924281, now seen corresponding path program 1 times [2018-11-23 00:20:57,320 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:20:57,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:20:57,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:20:57,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:20:57,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:20:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:20:57,443 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 00:20:57,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:20:57,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 00:20:57,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 00:20:57,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:20:57,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:20:57,456 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-11-23 00:20:57,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:20:57,479 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2018-11-23 00:20:57,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:20:57,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 00:20:57,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:20:57,486 INFO L225 Difference]: With dead ends: 29 [2018-11-23 00:20:57,486 INFO L226 Difference]: Without dead ends: 18 [2018-11-23 00:20:57,489 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 00:20:57,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-23 00:20:57,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-23 00:20:57,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 00:20:57,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-11-23 00:20:57,514 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 8 [2018-11-23 00:20:57,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:20:57,515 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-11-23 00:20:57,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 00:20:57,515 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-11-23 00:20:57,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 00:20:57,515 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:20:57,516 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:20:57,516 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 00:20:57,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:20:57,516 INFO L82 PathProgramCache]: Analyzing trace with hash -623924089, now seen corresponding path program 1 times [2018-11-23 00:20:57,516 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:20:57,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:20:57,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:20:57,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:20:57,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:20:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:20:57,538 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 00:20:57,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:20:57,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 00:20:57,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 00:20:57,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:20:57,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:20:57,540 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 3 states. [2018-11-23 00:20:57,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:20:57,561 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2018-11-23 00:20:57,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:20:57,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 00:20:57,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:20:57,562 INFO L225 Difference]: With dead ends: 18 [2018-11-23 00:20:57,562 INFO L226 Difference]: Without dead ends: 17 [2018-11-23 00:20:57,563 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 00:20:57,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-23 00:20:57,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-23 00:20:57,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 00:20:57,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-11-23 00:20:57,566 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 8 [2018-11-23 00:20:57,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:20:57,566 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-23 00:20:57,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 00:20:57,566 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-23 00:20:57,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 00:20:57,567 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:20:57,567 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:20:57,567 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 00:20:57,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:20:57,567 INFO L82 PathProgramCache]: Analyzing trace with hash 2133183819, now seen corresponding path program 1 times [2018-11-23 00:20:57,567 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:20:57,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:20:57,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:20:57,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:20:57,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:20:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:20:57,587 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 00:20:57,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:20:57,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 00:20:57,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 00:20:57,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:20:57,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:20:57,588 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 3 states. [2018-11-23 00:20:57,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:20:57,601 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-11-23 00:20:57,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:20:57,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 00:20:57,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:20:57,602 INFO L225 Difference]: With dead ends: 17 [2018-11-23 00:20:57,603 INFO L226 Difference]: Without dead ends: 16 [2018-11-23 00:20:57,603 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 00:20:57,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-23 00:20:57,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-23 00:20:57,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-23 00:20:57,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-23 00:20:57,606 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 9 [2018-11-23 00:20:57,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:20:57,606 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-23 00:20:57,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 00:20:57,606 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-23 00:20:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 00:20:57,607 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:20:57,607 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:20:57,607 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 00:20:57,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:20:57,607 INFO L82 PathProgramCache]: Analyzing trace with hash 2133189777, now seen corresponding path program 1 times [2018-11-23 00:20:57,607 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:20:57,607 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:20:57,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:20:57,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:20:57,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:20:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:20:57,627 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 00:20:57,627 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:20:57,627 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 00:20:57,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 00:20:57,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:20:57,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:20:57,628 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2018-11-23 00:20:57,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:20:57,641 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-11-23 00:20:57,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:20:57,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 00:20:57,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:20:57,642 INFO L225 Difference]: With dead ends: 17 [2018-11-23 00:20:57,642 INFO L226 Difference]: Without dead ends: 16 [2018-11-23 00:20:57,642 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 00:20:57,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-23 00:20:57,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-11-23 00:20:57,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-23 00:20:57,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-11-23 00:20:57,644 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2018-11-23 00:20:57,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:20:57,644 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-11-23 00:20:57,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 00:20:57,644 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-11-23 00:20:57,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 00:20:57,645 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:20:57,645 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:20:57,645 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 00:20:57,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:20:57,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1704373705, now seen corresponding path program 1 times [2018-11-23 00:20:57,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:20:57,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:20:57,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:20:57,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:20:57,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:20:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:20:57,659 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 00:20:57,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:20:57,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 00:20:57,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 00:20:57,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:20:57,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:20:57,660 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 3 states. [2018-11-23 00:20:57,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:20:57,674 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-11-23 00:20:57,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:20:57,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 00:20:57,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:20:57,675 INFO L225 Difference]: With dead ends: 15 [2018-11-23 00:20:57,675 INFO L226 Difference]: Without dead ends: 14 [2018-11-23 00:20:57,675 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 00:20:57,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-23 00:20:57,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-23 00:20:57,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-23 00:20:57,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-11-23 00:20:57,677 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2018-11-23 00:20:57,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:20:57,678 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-11-23 00:20:57,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 00:20:57,678 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-11-23 00:20:57,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 00:20:57,678 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:20:57,678 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:20:57,679 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 00:20:57,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:20:57,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1295977363, now seen corresponding path program 1 times [2018-11-23 00:20:57,679 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 00:20:57,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 00:20:57,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:20:57,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:20:57,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:20:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:20:57,710 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 00:20:57,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:20:57,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 00:20:57,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 00:20:57,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 00:20:57,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 00:20:57,711 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2018-11-23 00:20:57,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:20:57,719 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2018-11-23 00:20:57,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 00:20:57,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-23 00:20:57,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:20:57,720 INFO L225 Difference]: With dead ends: 14 [2018-11-23 00:20:57,720 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 00:20:57,721 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 00:20:57,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 00:20:57,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 00:20:57,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 00:20:57,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 00:20:57,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-23 00:20:57,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:20:57,722 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 00:20:57,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 00:20:57,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 00:20:57,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 00:20:57,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 00:20:57,758 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 00:20:57,758 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 00:20:57,758 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 00:20:57,758 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 00:20:57,758 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 00:20:57,759 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 00:20:57,759 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-11-23 00:20:57,759 INFO L448 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-11-23 00:20:57,759 INFO L448 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-11-23 00:20:57,759 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 15 31) no Hoare annotation was computed. [2018-11-23 00:20:57,759 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 28) no Hoare annotation was computed. [2018-11-23 00:20:57,759 INFO L444 ceAbstractionStarter]: At program point L21-2(lines 20 29) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= main_~y~0 2147483647) (<= main_~d~0 2147483647)) [2018-11-23 00:20:57,759 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 00:20:57,760 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 15 31) no Hoare annotation was computed. [2018-11-23 00:20:57,760 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-11-23 00:20:57,760 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-11-23 00:20:57,760 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 15 31) the Hoare annotation is: true [2018-11-23 00:20:57,760 INFO L448 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-11-23 00:20:57,760 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-11-23 00:20:57,760 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 00:20:57,760 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-23 00:20:57,760 INFO L448 ceAbstractionStarter]: For program point L20-2(lines 20 29) no Hoare annotation was computed. [2018-11-23 00:20:57,761 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 00:20:57,761 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2018-11-23 00:20:57,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:20:57 BoogieIcfgContainer [2018-11-23 00:20:57,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 00:20:57,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:20:57,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:20:57,770 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:20:57,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:20:57" (3/4) ... [2018-11-23 00:20:57,773 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 00:20:57,777 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 00:20:57,777 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 00:20:57,780 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 00:20:57,780 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 00:20:57,780 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 00:20:57,808 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8fcd2669-ab96-49b2-af20-e3970e23c28f/bin-2019/uautomizer/witness.graphml [2018-11-23 00:20:57,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:20:57,808 INFO L168 Benchmark]: Toolchain (without parser) took 946.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -125.0 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:20:57,809 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:20:57,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.40 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:20:57,809 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.13 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:20:57,809 INFO L168 Benchmark]: Boogie Preprocessor took 16.61 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:20:57,810 INFO L168 Benchmark]: RCFGBuilder took 193.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -195.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:20:57,810 INFO L168 Benchmark]: TraceAbstraction took 534.12 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: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:20:57,810 INFO L168 Benchmark]: Witness Printer took 38.08 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 00:20:57,812 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.40 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 17.13 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.61 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 193.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -195.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 534.12 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: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 11.5 GB. * Witness Printer took 38.08 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: 3.3 MB). Peak memory consumption was 3.3 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: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (x <= 2147483647 && y <= 2147483647) && d <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 6 error locations. SAFE Result, 0.4s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 85 SDtfs, 32 SDslu, 37 SDs, 0 SdLazy, 28 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 14 HoareAnnotationTreeSize, 5 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 777 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...