./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_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_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/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 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 14:18:31,934 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:18:31,935 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:18:31,943 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:18:31,943 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:18:31,943 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:18:31,944 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:18:31,945 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:18:31,946 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:18:31,947 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:18:31,947 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:18:31,948 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:18:31,948 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:18:31,949 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:18:31,950 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:18:31,950 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:18:31,951 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:18:31,952 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:18:31,953 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:18:31,954 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:18:31,955 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:18:31,955 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:18:31,957 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:18:31,957 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:18:31,957 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:18:31,958 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:18:31,959 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:18:31,959 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:18:31,959 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:18:31,960 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:18:31,960 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:18:31,961 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:18:31,961 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:18:31,961 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:18:31,962 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:18:31,962 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:18:31,962 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-23 14:18:31,970 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:18:31,970 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:18:31,971 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:18:31,971 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:18:31,971 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 14:18:31,971 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 14:18:31,971 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 14:18:31,971 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 14:18:31,972 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 14:18:31,972 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 14:18:31,972 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 14:18:31,972 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 14:18:31,972 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 14:18:31,973 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:18:31,973 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 14:18:31,973 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:18:31,973 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:18:31,973 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:18:31,973 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:18:31,973 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:18:31,974 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 14:18:31,974 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:18:31,974 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:18:31,974 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:18:31,974 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:18:31,974 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:18:31,975 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:18:31,975 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:18:31,975 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:18:31,975 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:18:31,975 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:18:31,975 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:18:31,975 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 14:18:31,975 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:18:31,976 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:18:31,976 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 14:18:31,976 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_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/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 -> 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 [2018-11-23 14:18:32,001 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:18:32,010 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:18:32,013 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:18:32,014 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:18:32,014 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:18:32,014 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c [2018-11-23 14:18:32,060 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/bin-2019/utaipan/data/a4b3e2e32/12a1f059e50e44b49b3fbde7d0e15681/FLAGe88146815 [2018-11-23 14:18:32,461 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:18:32,462 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c [2018-11-23 14:18:32,465 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/bin-2019/utaipan/data/a4b3e2e32/12a1f059e50e44b49b3fbde7d0e15681/FLAGe88146815 [2018-11-23 14:18:32,474 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/bin-2019/utaipan/data/a4b3e2e32/12a1f059e50e44b49b3fbde7d0e15681 [2018-11-23 14:18:32,476 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:18:32,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:18:32,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:18:32,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:18:32,481 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:18:32,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:32" (1/1) ... [2018-11-23 14:18:32,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c732555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:32, skipping insertion in model container [2018-11-23 14:18:32,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:18:32" (1/1) ... [2018-11-23 14:18:32,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:18:32,506 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:18:32,621 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:18:32,623 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:18:32,633 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:18:32,640 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:18:32,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:32 WrapperNode [2018-11-23 14:18:32,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:18:32,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:18:32,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:18:32,641 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:18:32,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:32" (1/1) ... [2018-11-23 14:18:32,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:32" (1/1) ... [2018-11-23 14:18:32,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:18:32,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:18:32,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:18:32,653 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:18:32,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:32" (1/1) ... [2018-11-23 14:18:32,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:32" (1/1) ... [2018-11-23 14:18:32,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:32" (1/1) ... [2018-11-23 14:18:32,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:32" (1/1) ... [2018-11-23 14:18:32,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:32" (1/1) ... [2018-11-23 14:18:32,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:32" (1/1) ... [2018-11-23 14:18:32,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:32" (1/1) ... [2018-11-23 14:18:32,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:18:32,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:18:32,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:18:32,666 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:18:32,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/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 14:18:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 14:18:32,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 14:18:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:18:32,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:18:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 14:18:32,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 14:18:32,848 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:18:32,849 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 14:18:32,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:32 BoogieIcfgContainer [2018-11-23 14:18:32,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:18:32,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:18:32,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:18:32,851 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:18:32,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:18:32" (1/3) ... [2018-11-23 14:18:32,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a980214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:32, skipping insertion in model container [2018-11-23 14:18:32,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:18:32" (2/3) ... [2018-11-23 14:18:32,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a980214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:18:32, skipping insertion in model container [2018-11-23 14:18:32,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:32" (3/3) ... [2018-11-23 14:18:32,853 INFO L112 eAbstractionObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3_true-termination_true-no-overflow.c [2018-11-23 14:18:32,859 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:18:32,863 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-23 14:18:32,872 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-23 14:18:32,891 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:18:32,891 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:18:32,891 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:18:32,891 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:18:32,891 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:18:32,891 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:18:32,891 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:18:32,891 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:18:32,906 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-23 14:18:32,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:18:32,910 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:18:32,911 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:18:32,912 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:18:32,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:18:32,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1648261274, now seen corresponding path program 1 times [2018-11-23 14:18:32,917 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:18:32,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:32,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:18:32,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:32,954 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:18:32,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:18:33,012 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 14:18:33,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:18:33,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:18:33,013 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:18:33,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:18:33,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:18:33,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:18:33,025 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2018-11-23 14:18:33,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:18:33,077 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-11-23 14:18:33,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:18:33,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 14:18:33,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:18:33,087 INFO L225 Difference]: With dead ends: 48 [2018-11-23 14:18:33,087 INFO L226 Difference]: Without dead ends: 34 [2018-11-23 14:18:33,090 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 14:18:33,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-23 14:18:33,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-11-23 14:18:33,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-23 14:18:33,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2018-11-23 14:18:33,115 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 9 [2018-11-23 14:18:33,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:18:33,115 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2018-11-23 14:18:33,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:18:33,115 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2018-11-23 14:18:33,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:18:33,115 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:18:33,116 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:18:33,116 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:18:33,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:18:33,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1648261466, now seen corresponding path program 1 times [2018-11-23 14:18:33,116 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:18:33,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:33,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:18:33,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:33,118 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:18:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:18:33,142 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 14:18:33,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:18:33,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:18:33,143 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:18:33,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:18:33,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:18:33,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:18:33,144 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 3 states. [2018-11-23 14:18:33,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:18:33,162 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2018-11-23 14:18:33,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:18:33,163 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 14:18:33,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:18:33,163 INFO L225 Difference]: With dead ends: 32 [2018-11-23 14:18:33,163 INFO L226 Difference]: Without dead ends: 30 [2018-11-23 14:18:33,164 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 14:18:33,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-23 14:18:33,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-23 14:18:33,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-23 14:18:33,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2018-11-23 14:18:33,167 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 9 [2018-11-23 14:18:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:18:33,167 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2018-11-23 14:18:33,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:18:33,167 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2018-11-23 14:18:33,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:18:33,167 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:18:33,168 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:18:33,168 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:18:33,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:18:33,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1648277162, now seen corresponding path program 1 times [2018-11-23 14:18:33,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:18:33,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:33,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:18:33,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:33,170 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:18:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:18:33,199 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 14:18:33,200 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:18:33,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:18:33,200 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:18:33,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:18:33,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:18:33,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:18:33,201 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 3 states. [2018-11-23 14:18:33,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:18:33,221 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2018-11-23 14:18:33,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:18:33,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 14:18:33,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:18:33,222 INFO L225 Difference]: With dead ends: 30 [2018-11-23 14:18:33,222 INFO L226 Difference]: Without dead ends: 29 [2018-11-23 14:18:33,222 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 14:18:33,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-23 14:18:33,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-23 14:18:33,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-23 14:18:33,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2018-11-23 14:18:33,225 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 9 [2018-11-23 14:18:33,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:18:33,225 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2018-11-23 14:18:33,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:18:33,225 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2018-11-23 14:18:33,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:18:33,225 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:18:33,226 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:18:33,226 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:18:33,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:18:33,226 INFO L82 PathProgramCache]: Analyzing trace with hash -443508005, now seen corresponding path program 1 times [2018-11-23 14:18:33,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:18:33,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:33,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:18:33,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:33,227 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:18:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:18:33,239 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 14:18:33,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:18:33,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:18:33,240 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:18:33,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:18:33,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:18:33,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:18:33,240 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand 3 states. [2018-11-23 14:18:33,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:18:33,280 INFO L93 Difference]: Finished difference Result 56 states and 73 transitions. [2018-11-23 14:18:33,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:18:33,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 14:18:33,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:18:33,280 INFO L225 Difference]: With dead ends: 56 [2018-11-23 14:18:33,280 INFO L226 Difference]: Without dead ends: 32 [2018-11-23 14:18:33,281 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 14:18:33,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-23 14:18:33,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-23 14:18:33,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-23 14:18:33,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2018-11-23 14:18:33,283 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 10 [2018-11-23 14:18:33,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:18:33,284 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2018-11-23 14:18:33,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:18:33,284 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2018-11-23 14:18:33,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:18:33,284 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:18:33,284 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:18:33,284 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:18:33,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:18:33,284 INFO L82 PathProgramCache]: Analyzing trace with hash -443502047, now seen corresponding path program 1 times [2018-11-23 14:18:33,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:18:33,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:33,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:18:33,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:33,285 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:18:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:18:33,300 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 14:18:33,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:18:33,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:18:33,300 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:18:33,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:18:33,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:18:33,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:18:33,301 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 3 states. [2018-11-23 14:18:33,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:18:33,323 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2018-11-23 14:18:33,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:18:33,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 14:18:33,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:18:33,324 INFO L225 Difference]: With dead ends: 33 [2018-11-23 14:18:33,324 INFO L226 Difference]: Without dead ends: 31 [2018-11-23 14:18:33,324 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 14:18:33,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-23 14:18:33,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-11-23 14:18:33,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-23 14:18:33,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2018-11-23 14:18:33,327 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 10 [2018-11-23 14:18:33,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:18:33,327 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2018-11-23 14:18:33,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:18:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2018-11-23 14:18:33,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:18:33,328 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:18:33,328 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:18:33,328 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:18:33,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:18:33,328 INFO L82 PathProgramCache]: Analyzing trace with hash -443015461, now seen corresponding path program 1 times [2018-11-23 14:18:33,328 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:18:33,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:33,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:18:33,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:33,330 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:18:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:18:33,343 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 14:18:33,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:18:33,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:18:33,344 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:18:33,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:18:33,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:18:33,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:18:33,344 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 3 states. [2018-11-23 14:18:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:18:33,356 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-11-23 14:18:33,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:18:33,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 14:18:33,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:18:33,357 INFO L225 Difference]: With dead ends: 30 [2018-11-23 14:18:33,357 INFO L226 Difference]: Without dead ends: 29 [2018-11-23 14:18:33,357 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 14:18:33,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-23 14:18:33,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-23 14:18:33,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-23 14:18:33,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2018-11-23 14:18:33,361 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 10 [2018-11-23 14:18:33,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:18:33,361 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2018-11-23 14:18:33,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:18:33,361 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2018-11-23 14:18:33,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 14:18:33,362 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:18:33,362 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:18:33,362 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:18:33,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:18:33,362 INFO L82 PathProgramCache]: Analyzing trace with hash 209418272, now seen corresponding path program 1 times [2018-11-23 14:18:33,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:18:33,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:33,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:18:33,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:18:33,364 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:18:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:18:33,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:18:33,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:18:33,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 14:18:33,388 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:18:33,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 14:18:33,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:18:33,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:18:33,389 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 4 states. [2018-11-23 14:18:33,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:18:33,420 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2018-11-23 14:18:33,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 14:18:33,420 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-23 14:18:33,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:18:33,420 INFO L225 Difference]: With dead ends: 54 [2018-11-23 14:18:33,421 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 14:18:33,421 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:18:33,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 14:18:33,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 14:18:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 14:18:33,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 14:18:33,422 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-23 14:18:33,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:18:33,422 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:18:33,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 14:18:33,422 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:18:33,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:18:33,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 14:18:33,477 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 14:18:33,478 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:18:33,478 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:18:33,478 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 14:18:33,478 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 14:18:33,478 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 14:18:33,478 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 32) no Hoare annotation was computed. [2018-11-23 14:18:33,478 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-23 14:18:33,478 INFO L444 ceAbstractionStarter]: At program point L27-2(lines 18 34) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= 0 (+ main_~x~0 2147483648)) (<= main_~y~0 2147483647)) [2018-11-23 14:18:33,478 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 36) no Hoare annotation was computed. [2018-11-23 14:18:33,478 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-23 14:18:33,478 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-23 14:18:33,478 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2018-11-23 14:18:33,478 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 33) no Hoare annotation was computed. [2018-11-23 14:18:33,478 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 36) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 36) the Hoare annotation is: true [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 25) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 34) no Hoare annotation was computed. [2018-11-23 14:18:33,479 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-11-23 14:18:33,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:18:33 BoogieIcfgContainer [2018-11-23 14:18:33,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:18:33,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:18:33,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:18:33,488 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:18:33,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:18:32" (3/4) ... [2018-11-23 14:18:33,491 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:18:33,495 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 14:18:33,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 14:18:33,499 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 14:18:33,499 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 14:18:33,499 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 14:18:33,533 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_aeb98db6-1322-4e3d-9ec9-7ce76b5b4f19/bin-2019/utaipan/witness.graphml [2018-11-23 14:18:33,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:18:33,534 INFO L168 Benchmark]: Toolchain (without parser) took 1057.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 961.9 MB in the beginning and 1.0 GB in the end (delta: -69.0 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:33,535 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:18:33,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.04 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:33,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.81 ms. Allocated memory is still 1.0 GB. Free memory is still 951.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:18:33,536 INFO L168 Benchmark]: Boogie Preprocessor took 12.10 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:18:33,536 INFO L168 Benchmark]: RCFGBuilder took 183.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -168.4 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:33,537 INFO L168 Benchmark]: TraceAbstraction took 637.78 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: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:33,537 INFO L168 Benchmark]: Witness Printer took 45.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:18:33,539 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 163.04 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 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 11.81 ms. Allocated memory is still 1.0 GB. Free memory is still 951.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.10 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 183.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -168.4 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 637.78 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: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. * Witness Printer took 45.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 0 <= x + 2147483648) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 8 error locations. SAFE Result, 0.5s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 137 SDtfs, 73 SDslu, 63 SDs, 0 SdLazy, 91 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=1, 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, 7 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 16 HoareAnnotationTreeSize, 5 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 1252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...