./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2_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_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ff3652fa62b489d4e6a4a85c8349c06d13bd2232 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:45:40,600 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:45:40,601 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:45:40,610 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:45:40,610 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:45:40,611 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:45:40,611 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:45:40,613 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:45:40,614 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:45:40,614 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:45:40,615 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:45:40,615 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:45:40,616 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:45:40,616 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:45:40,617 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:45:40,617 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:45:40,618 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:45:40,619 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:45:40,620 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:45:40,621 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:45:40,622 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:45:40,623 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:45:40,624 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:45:40,624 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:45:40,625 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:45:40,625 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:45:40,626 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:45:40,626 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:45:40,626 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:45:40,627 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:45:40,627 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:45:40,628 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:45:40,628 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:45:40,628 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:45:40,629 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:45:40,629 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:45:40,629 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-23 14:45:40,639 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:45:40,640 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:45:40,640 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:45:40,640 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:45:40,640 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 14:45:40,641 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 14:45:40,641 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 14:45:40,641 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 14:45:40,641 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 14:45:40,641 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 14:45:40,641 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 14:45:40,641 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 14:45:40,641 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 14:45:40,642 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:45:40,642 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 14:45:40,642 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:45:40,642 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:45:40,642 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:45:40,643 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:45:40,643 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:45:40,643 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 14:45:40,643 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:45:40,643 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:45:40,643 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:45:40,643 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:45:40,644 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:45:40,644 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:45:40,644 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:45:40,644 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:45:40,644 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:45:40,644 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:45:40,644 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:45:40,644 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 14:45:40,645 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:45:40,645 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:45:40,645 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 14:45:40,645 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan 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 -> Taipan 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 -> ff3652fa62b489d4e6a4a85c8349c06d13bd2232 [2018-11-23 14:45:40,668 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:45:40,677 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:45:40,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:45:40,681 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:45:40,681 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:45:40,682 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2_true-termination_true-no-overflow.c [2018-11-23 14:45:40,725 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/data/f41fa17a5/23a7174c651e4d5f91b97d7455de9967/FLAGab325babc [2018-11-23 14:45:41,011 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:45:41,011 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2_true-termination_true-no-overflow.c [2018-11-23 14:45:41,015 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/data/f41fa17a5/23a7174c651e4d5f91b97d7455de9967/FLAGab325babc [2018-11-23 14:45:41,023 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/data/f41fa17a5/23a7174c651e4d5f91b97d7455de9967 [2018-11-23 14:45:41,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:45:41,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:45:41,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:45:41,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:45:41,029 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:45:41,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:45:41" (1/1) ... [2018-11-23 14:45:41,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c8d80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:41, skipping insertion in model container [2018-11-23 14:45:41,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:45:41" (1/1) ... [2018-11-23 14:45:41,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:45:41,047 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:45:41,150 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:45:41,152 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:45:41,161 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:45:41,169 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:45:41,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:41 WrapperNode [2018-11-23 14:45:41,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:45:41,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:45:41,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:45:41,170 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:45:41,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:41" (1/1) ... [2018-11-23 14:45:41,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:41" (1/1) ... [2018-11-23 14:45:41,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:45:41,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:45:41,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:45:41,183 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:45:41,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:41" (1/1) ... [2018-11-23 14:45:41,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:41" (1/1) ... [2018-11-23 14:45:41,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:41" (1/1) ... [2018-11-23 14:45:41,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:41" (1/1) ... [2018-11-23 14:45:41,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:41" (1/1) ... [2018-11-23 14:45:41,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:41" (1/1) ... [2018-11-23 14:45:41,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:41" (1/1) ... [2018-11-23 14:45:41,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:45:41,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:45:41,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:45:41,195 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:45:41,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/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 14:45:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 14:45:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 14:45:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:45:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:45:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 14:45:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 14:45:41,360 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:45:41,361 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 14:45:41,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:41 BoogieIcfgContainer [2018-11-23 14:45:41,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:45:41,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:45:41,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:45:41,365 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:45:41,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:45:41" (1/3) ... [2018-11-23 14:45:41,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18582848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:45:41, skipping insertion in model container [2018-11-23 14:45:41,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:41" (2/3) ... [2018-11-23 14:45:41,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18582848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:45:41, skipping insertion in model container [2018-11-23 14:45:41,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:41" (3/3) ... [2018-11-23 14:45:41,367 INFO L112 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig2_true-termination_true-no-overflow.c [2018-11-23 14:45:41,373 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:45:41,377 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-23 14:45:41,386 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-23 14:45:41,410 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:45:41,410 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:45:41,410 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:45:41,411 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:45:41,411 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:45:41,411 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:45:41,411 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:45:41,411 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:45:41,423 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-23 14:45:41,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 14:45:41,427 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:45:41,427 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:45:41,429 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:45:41,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:45:41,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1374165426, now seen corresponding path program 1 times [2018-11-23 14:45:41,434 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:45:41,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:41,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:45:41,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:41,466 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:45:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:41,536 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 14:45:41,537 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:45:41,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 14:45:41,537 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:45:41,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 14:45:41,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:45:41,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:45:41,549 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2018-11-23 14:45:41,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:45:41,637 INFO L93 Difference]: Finished difference Result 53 states and 75 transitions. [2018-11-23 14:45:41,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 14:45:41,639 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-23 14:45:41,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:45:41,646 INFO L225 Difference]: With dead ends: 53 [2018-11-23 14:45:41,646 INFO L226 Difference]: Without dead ends: 30 [2018-11-23 14:45:41,649 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 14:45:41,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-23 14:45:41,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2018-11-23 14:45:41,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-23 14:45:41,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2018-11-23 14:45:41,681 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 8 [2018-11-23 14:45:41,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:45:41,682 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2018-11-23 14:45:41,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 14:45:41,682 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2018-11-23 14:45:41,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:45:41,682 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:45:41,682 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:45:41,683 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:45:41,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:45:41,683 INFO L82 PathProgramCache]: Analyzing trace with hash 350544817, now seen corresponding path program 1 times [2018-11-23 14:45:41,683 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:45:41,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:41,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:45:41,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:41,685 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:45:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:41,702 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 14:45:41,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:45:41,703 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:45:41,703 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:45:41,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:45:41,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:45:41,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:45:41,705 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand 3 states. [2018-11-23 14:45:41,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:45:41,736 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2018-11-23 14:45:41,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:45:41,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 14:45:41,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:45:41,737 INFO L225 Difference]: With dead ends: 23 [2018-11-23 14:45:41,737 INFO L226 Difference]: Without dead ends: 22 [2018-11-23 14:45:41,737 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 14:45:41,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-23 14:45:41,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-23 14:45:41,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-23 14:45:41,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2018-11-23 14:45:41,741 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 9 [2018-11-23 14:45:41,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:45:41,741 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2018-11-23 14:45:41,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:45:41,741 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-11-23 14:45:41,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:45:41,742 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:45:41,742 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:45:41,742 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:45:41,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:45:41,742 INFO L82 PathProgramCache]: Analyzing trace with hash 350546515, now seen corresponding path program 1 times [2018-11-23 14:45:41,742 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:45:41,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:41,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:45:41,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:41,743 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:45:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:41,774 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 14:45:41,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:45:41,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:45:41,775 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:45:41,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:45:41,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:45:41,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:45:41,776 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 3 states. [2018-11-23 14:45:41,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:45:41,795 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2018-11-23 14:45:41,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:45:41,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 14:45:41,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:45:41,796 INFO L225 Difference]: With dead ends: 23 [2018-11-23 14:45:41,796 INFO L226 Difference]: Without dead ends: 16 [2018-11-23 14:45:41,796 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 14:45:41,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-23 14:45:41,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-11-23 14:45:41,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-23 14:45:41,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-11-23 14:45:41,799 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2018-11-23 14:45:41,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:45:41,799 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-11-23 14:45:41,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:45:41,799 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-11-23 14:45:41,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 14:45:41,800 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:45:41,800 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:45:41,800 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:45:41,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:45:41,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1867753438, now seen corresponding path program 1 times [2018-11-23 14:45:41,800 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:45:41,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:41,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:45:41,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:41,802 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:45:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:41,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:45:41,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:45:41,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:45:41,826 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:45:41,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:45:41,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:45:41,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:45:41,827 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 3 states. [2018-11-23 14:45:41,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:45:41,848 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-11-23 14:45:41,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:45:41,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-23 14:45:41,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:45:41,848 INFO L225 Difference]: With dead ends: 15 [2018-11-23 14:45:41,848 INFO L226 Difference]: Without dead ends: 14 [2018-11-23 14:45:41,849 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 14:45:41,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-23 14:45:41,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-23 14:45:41,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-23 14:45:41,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-11-23 14:45:41,851 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2018-11-23 14:45:41,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:45:41,852 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-11-23 14:45:41,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:45:41,852 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-11-23 14:45:41,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 14:45:41,852 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:45:41,852 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:45:41,853 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:45:41,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:45:41,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1867753493, now seen corresponding path program 1 times [2018-11-23 14:45:41,853 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:45:41,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:41,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:45:41,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:41,854 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:45:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:45:41,876 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:45:41,876 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:45:41,877 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-11-23 14:45:41,878 INFO L202 CegarAbsIntRunner]: [0], [4], [13], [22], [23], [24], [26], [39], [40], [41] [2018-11-23 14:45:41,904 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 14:45:41,904 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 14:45:41,995 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 14:45:41,996 INFO L272 AbstractInterpreter]: Visited 10 different actions 22 times. Merged at 3 different actions 9 times. Never widened. Performed 73 root evaluator evaluations with a maximum evaluation depth of 3. Performed 73 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 4 variables. [2018-11-23 14:45:42,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:45:42,006 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 14:45:42,006 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:45:42,006 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/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 14:45:42,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:45:42,013 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 14:45:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:42,023 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:45:42,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:45:42,033 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:45:42,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:45:42,076 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 14:45:42,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2018-11-23 14:45:42,076 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 14:45:42,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 14:45:42,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:45:42,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:45:42,077 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2018-11-23 14:45:42,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:45:42,114 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-11-23 14:45:42,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 14:45:42,114 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-23 14:45:42,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:45:42,115 INFO L225 Difference]: With dead ends: 22 [2018-11-23 14:45:42,115 INFO L226 Difference]: Without dead ends: 21 [2018-11-23 14:45:42,115 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:45:42,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-23 14:45:42,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2018-11-23 14:45:42,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 14:45:42,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-23 14:45:42,118 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2018-11-23 14:45:42,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:45:42,119 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-23 14:45:42,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 14:45:42,119 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-23 14:45:42,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 14:45:42,119 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:45:42,119 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:45:42,119 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:45:42,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:45:42,120 INFO L82 PathProgramCache]: Analyzing trace with hash 943045765, now seen corresponding path program 2 times [2018-11-23 14:45:42,120 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:45:42,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:42,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:45:42,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:45:42,121 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:45:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:45:42,158 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:45:42,158 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:45:42,158 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 14:45:42,158 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 14:45:42,158 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 14:45:42,158 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:45:42,159 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:45:42,168 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 14:45:42,168 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 14:45:42,173 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2018-11-23 14:45:42,173 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:45:42,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:45:42,188 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 14:45:42,188 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:45:42,199 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 14:45:42,221 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 14:45:42,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 6 [2018-11-23 14:45:42,222 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 14:45:42,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 14:45:42,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 14:45:42,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 14:45:42,222 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 7 states. [2018-11-23 14:45:42,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:45:42,303 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-11-23 14:45:42,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 14:45:42,303 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-11-23 14:45:42,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:45:42,304 INFO L225 Difference]: With dead ends: 31 [2018-11-23 14:45:42,304 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 14:45:42,304 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-23 14:45:42,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 14:45:42,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 14:45:42,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 14:45:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 14:45:42,305 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-23 14:45:42,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:45:42,305 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:45:42,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 14:45:42,305 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:45:42,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:45:42,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 14:45:42,345 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 14:45:42,345 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:45:42,345 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:45:42,345 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 14:45:42,345 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 14:45:42,346 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 14:45:42,346 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 14:45:42,346 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 25) no Hoare annotation was computed. [2018-11-23 14:45:42,346 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 14:45:42,346 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= 1 main_~y~0) (<= 0 main_~x~0)) [2018-11-23 14:45:42,346 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2018-11-23 14:45:42,346 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 23) the Hoare annotation is: (<= main_~x~0 2147483647) [2018-11-23 14:45:42,346 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2018-11-23 14:45:42,346 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 25) no Hoare annotation was computed. [2018-11-23 14:45:42,346 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 14:45:42,346 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 25) the Hoare annotation is: true [2018-11-23 14:45:42,347 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 14:45:42,347 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-23 14:45:42,347 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-23 14:45:42,347 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 14:45:42,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:45:42 BoogieIcfgContainer [2018-11-23 14:45:42,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:45:42,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:45:42,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:45:42,355 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:45:42,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:41" (3/4) ... [2018-11-23 14:45:42,357 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:45:42,360 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 14:45:42,360 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 14:45:42,364 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 14:45:42,364 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 14:45:42,364 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 14:45:42,389 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_71f9f286-4f2f-4dcc-972f-e9f7a462212c/bin-2019/utaipan/witness.graphml [2018-11-23 14:45:42,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:45:42,389 INFO L168 Benchmark]: Toolchain (without parser) took 1363.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 959.1 MB in the beginning and 1.0 GB in the end (delta: -60.3 MB). Peak memory consumption was 91.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:42,390 INFO L168 Benchmark]: CDTParser took 0.14 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 14:45:42,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.69 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:42,391 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.73 ms. Allocated memory is still 1.0 GB. Free memory is still 948.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:45:42,391 INFO L168 Benchmark]: Boogie Preprocessor took 12.52 ms. Allocated memory is still 1.0 GB. Free memory was 948.2 MB in the beginning and 945.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:42,392 INFO L168 Benchmark]: RCFGBuilder took 167.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:42,392 INFO L168 Benchmark]: TraceAbstraction took 991.21 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: 114.8 MB). Peak memory consumption was 114.8 MB. Max. memory is 11.5 GB. [2018-11-23 14:45:42,393 INFO L168 Benchmark]: Witness Printer took 34.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:45:42,395 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.69 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.73 ms. Allocated memory is still 1.0 GB. Free memory is still 948.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.52 ms. Allocated memory is still 1.0 GB. Free memory was 948.2 MB in the beginning and 945.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 167.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 991.21 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: 114.8 MB). Peak memory consumption was 114.8 MB. Max. memory is 11.5 GB. * Witness Printer took 34.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 1 <= y) && 0 <= x - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. SAFE Result, 0.9s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 59 SDtfs, 63 SDslu, 54 SDs, 0 SdLazy, 102 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 17 NumberOfFragments, 17 HoareAnnotationTreeSize, 6 FomulaSimplifications, 134 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 87 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 2304 SizeOfPredicates, 3 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 11/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...