./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9_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_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/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 0a8f096dedbbe798ef2fe808d4231fc7a503c17f ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:44:36,620 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:44:36,621 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:44:36,628 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:44:36,628 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:44:36,629 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:44:36,630 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:44:36,631 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:44:36,632 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:44:36,632 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:44:36,633 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:44:36,633 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:44:36,634 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:44:36,634 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:44:36,635 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:44:36,635 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:44:36,636 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:44:36,637 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:44:36,638 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:44:36,639 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:44:36,640 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:44:36,641 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:44:36,642 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:44:36,643 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:44:36,643 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:44:36,643 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:44:36,644 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:44:36,645 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:44:36,645 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:44:36,646 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:44:36,646 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:44:36,647 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:44:36,647 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:44:36,647 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:44:36,648 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:44:36,648 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:44:36,648 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-23 15:44:36,659 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:44:36,659 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:44:36,659 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:44:36,659 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:44:36,660 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 15:44:36,660 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 15:44:36,660 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 15:44:36,660 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 15:44:36,660 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 15:44:36,660 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 15:44:36,660 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 15:44:36,660 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 15:44:36,660 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 15:44:36,661 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:44:36,661 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 15:44:36,661 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 15:44:36,661 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:44:36,661 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 15:44:36,661 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:44:36,662 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 15:44:36,662 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 15:44:36,662 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:44:36,662 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:44:36,662 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 15:44:36,662 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:44:36,662 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:44:36,663 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:44:36,663 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:44:36,663 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:44:36,663 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:44:36,663 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:44:36,663 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 15:44:36,663 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 15:44:36,663 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:44:36,663 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 15:44:36,663 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 15:44:36,663 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_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/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 -> 0a8f096dedbbe798ef2fe808d4231fc7a503c17f [2018-11-23 15:44:36,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:44:36,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:44:36,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:44:36,699 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:44:36,699 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:44:36,700 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c [2018-11-23 15:44:36,735 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/bin-2019/utaipan/data/e4194cf5d/001e4a3d9ad24b37a20587b673663544/FLAG80512649b [2018-11-23 15:44:37,143 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:44:37,143 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c [2018-11-23 15:44:37,147 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/bin-2019/utaipan/data/e4194cf5d/001e4a3d9ad24b37a20587b673663544/FLAG80512649b [2018-11-23 15:44:37,157 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/bin-2019/utaipan/data/e4194cf5d/001e4a3d9ad24b37a20587b673663544 [2018-11-23 15:44:37,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:44:37,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:44:37,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:44:37,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:44:37,163 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:44:37,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:37" (1/1) ... [2018-11-23 15:44:37,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c93cfda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:37, skipping insertion in model container [2018-11-23 15:44:37,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:37" (1/1) ... [2018-11-23 15:44:37,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:44:37,181 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:44:37,286 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:44:37,288 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:44:37,297 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:44:37,304 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:44:37,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:37 WrapperNode [2018-11-23 15:44:37,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:44:37,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:44:37,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:44:37,305 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:44:37,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:37" (1/1) ... [2018-11-23 15:44:37,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:37" (1/1) ... [2018-11-23 15:44:37,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:44:37,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:44:37,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:44:37,317 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:44:37,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:37" (1/1) ... [2018-11-23 15:44:37,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:37" (1/1) ... [2018-11-23 15:44:37,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:37" (1/1) ... [2018-11-23 15:44:37,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:37" (1/1) ... [2018-11-23 15:44:37,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:37" (1/1) ... [2018-11-23 15:44:37,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:37" (1/1) ... [2018-11-23 15:44:37,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:37" (1/1) ... [2018-11-23 15:44:37,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:44:37,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:44:37,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:44:37,329 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:44:37,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/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 15:44:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:44:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:44:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:44:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:44:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:44:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:44:37,490 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:44:37,490 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 15:44:37,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:44:37 BoogieIcfgContainer [2018-11-23 15:44:37,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:44:37,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:44:37,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:44:37,492 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:44:37,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:44:37" (1/3) ... [2018-11-23 15:44:37,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5257a35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:44:37, skipping insertion in model container [2018-11-23 15:44:37,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:37" (2/3) ... [2018-11-23 15:44:37,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5257a35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:44:37, skipping insertion in model container [2018-11-23 15:44:37,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:44:37" (3/3) ... [2018-11-23 15:44:37,495 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c [2018-11-23 15:44:37,500 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:44:37,505 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-23 15:44:37,515 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-23 15:44:37,534 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:44:37,534 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 15:44:37,534 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:44:37,535 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:44:37,535 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:44:37,535 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:44:37,535 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:44:37,535 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:44:37,546 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-23 15:44:37,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 15:44:37,551 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:44:37,552 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:44:37,554 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 15:44:37,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:44:37,557 INFO L82 PathProgramCache]: Analyzing trace with hash 876558283, now seen corresponding path program 1 times [2018-11-23 15:44:37,558 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:44:37,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:44:37,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:44:37,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:44:37,591 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:44:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:44:37,647 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 15:44:37,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:44:37,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 15:44:37,649 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:44:37,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 15:44:37,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 15:44:37,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:44:37,665 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-11-23 15:44:37,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:44:37,701 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-11-23 15:44:37,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 15:44:37,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 15:44:37,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:44:37,710 INFO L225 Difference]: With dead ends: 33 [2018-11-23 15:44:37,710 INFO L226 Difference]: Without dead ends: 19 [2018-11-23 15:44:37,713 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 15:44:37,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-23 15:44:37,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-23 15:44:37,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-23 15:44:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2018-11-23 15:44:37,736 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 8 [2018-11-23 15:44:37,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:44:37,736 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2018-11-23 15:44:37,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 15:44:37,737 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-11-23 15:44:37,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 15:44:37,737 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:44:37,737 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:44:37,738 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 15:44:37,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:44:37,738 INFO L82 PathProgramCache]: Analyzing trace with hash 876558475, now seen corresponding path program 1 times [2018-11-23 15:44:37,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:44:37,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:44:37,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:44:37,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:44:37,740 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:44:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:44:37,766 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 15:44:37,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:44:37,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 15:44:37,766 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:44:37,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 15:44:37,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 15:44:37,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:44:37,768 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 3 states. [2018-11-23 15:44:37,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:44:37,775 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2018-11-23 15:44:37,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 15:44:37,776 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 15:44:37,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:44:37,776 INFO L225 Difference]: With dead ends: 19 [2018-11-23 15:44:37,777 INFO L226 Difference]: Without dead ends: 18 [2018-11-23 15:44:37,778 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 15:44:37,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-23 15:44:37,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-23 15:44:37,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 15:44:37,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2018-11-23 15:44:37,780 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2018-11-23 15:44:37,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:44:37,780 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2018-11-23 15:44:37,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 15:44:37,781 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2018-11-23 15:44:37,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 15:44:37,781 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:44:37,781 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:44:37,782 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 15:44:37,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:44:37,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1403503047, now seen corresponding path program 1 times [2018-11-23 15:44:37,782 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:44:37,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:44:37,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:44:37,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:44:37,784 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:44:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:44:37,808 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 15:44:37,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:44:37,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 15:44:37,808 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:44:37,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 15:44:37,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 15:44:37,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:44:37,809 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 3 states. [2018-11-23 15:44:37,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:44:37,818 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2018-11-23 15:44:37,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 15:44:37,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 15:44:37,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:44:37,819 INFO L225 Difference]: With dead ends: 18 [2018-11-23 15:44:37,819 INFO L226 Difference]: Without dead ends: 17 [2018-11-23 15:44:37,819 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 15:44:37,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-23 15:44:37,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-23 15:44:37,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 15:44:37,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-23 15:44:37,822 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 9 [2018-11-23 15:44:37,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:44:37,822 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-23 15:44:37,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 15:44:37,822 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-23 15:44:37,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 15:44:37,822 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:44:37,823 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:44:37,823 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 15:44:37,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:44:37,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1403509005, now seen corresponding path program 1 times [2018-11-23 15:44:37,823 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:44:37,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:44:37,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:44:37,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:44:37,825 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:44:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:44:37,842 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 15:44:37,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:44:37,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 15:44:37,843 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 15:44:37,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 15:44:37,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 15:44:37,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 15:44:37,843 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-11-23 15:44:37,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:44:37,855 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-23 15:44:37,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 15:44:37,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 15:44:37,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:44:37,856 INFO L225 Difference]: With dead ends: 19 [2018-11-23 15:44:37,856 INFO L226 Difference]: Without dead ends: 18 [2018-11-23 15:44:37,857 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 15:44:37,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-23 15:44:37,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2018-11-23 15:44:37,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-23 15:44:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-11-23 15:44:37,860 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 9 [2018-11-23 15:44:37,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:44:37,860 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-11-23 15:44:37,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 15:44:37,860 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-23 15:44:37,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 15:44:37,861 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:44:37,861 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:44:37,861 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 15:44:37,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:44:37,861 INFO L82 PathProgramCache]: Analyzing trace with hash 430184192, now seen corresponding path program 1 times [2018-11-23 15:44:37,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 15:44:37,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:44:37,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:44:37,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:44:37,866 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 15:44:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:44:37,887 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 15:44:37,888 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:44:37,888 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 15:44:37,889 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-11-23 15:44:37,890 INFO L202 CegarAbsIntRunner]: [0], [4], [13], [16], [17], [22], [24], [26], [33], [34], [35] [2018-11-23 15:44:37,910 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 15:44:37,910 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 15:44:37,980 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 15:44:37,981 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Performed 30 root evaluator evaluations with a maximum evaluation depth of 3. Performed 30 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-11-23 15:44:37,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:44:37,985 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 15:44:37,986 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:44:37,986 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/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 15:44:37,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:44:37,992 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 15:44:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:44:38,005 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:44:38,017 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 15:44:38,018 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 15:44:38,043 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 15:44:38,058 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 15:44:38,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2018-11-23 15:44:38,058 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 15:44:38,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 15:44:38,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 15:44:38,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 15:44:38,059 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2018-11-23 15:44:38,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:44:38,083 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2018-11-23 15:44:38,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 15:44:38,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-23 15:44:38,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 15:44:38,084 INFO L225 Difference]: With dead ends: 16 [2018-11-23 15:44:38,084 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 15:44:38,084 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 15:44:38,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 15:44:38,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 15:44:38,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 15:44:38,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 15:44:38,085 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-11-23 15:44:38,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 15:44:38,085 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 15:44:38,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 15:44:38,085 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 15:44:38,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 15:44:38,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 15:44:38,127 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 15:44:38,127 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 15:44:38,128 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 15:44:38,128 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 15:44:38,128 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 15:44:38,128 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 15:44:38,128 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-23 15:44:38,128 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2018-11-23 15:44:38,128 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-23 15:44:38,128 INFO L448 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-23 15:44:38,128 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 15:44:38,129 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 24) no Hoare annotation was computed. [2018-11-23 15:44:38,129 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 18 25) the Hoare annotation is: (and (<= main_~i~0 2147483647) (<= main_~N~0 2147483647) (<= main_~j~0 2147483647)) [2018-11-23 15:44:38,129 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 27) no Hoare annotation was computed. [2018-11-23 15:44:38,129 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-23 15:44:38,129 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2018-11-23 15:44:38,129 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-23 15:44:38,129 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-23 15:44:38,129 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 15:44:38,130 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2018-11-23 15:44:38,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:44:38 BoogieIcfgContainer [2018-11-23 15:44:38,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 15:44:38,139 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:44:38,139 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:44:38,139 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:44:38,139 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:44:37" (3/4) ... [2018-11-23 15:44:38,141 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 15:44:38,145 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 15:44:38,145 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 15:44:38,147 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 15:44:38,148 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 15:44:38,148 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 15:44:38,175 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_31f3f5da-b3e7-4f1c-ad57-73bb29b33255/bin-2019/utaipan/witness.graphml [2018-11-23 15:44:38,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:44:38,176 INFO L168 Benchmark]: Toolchain (without parser) took 1016.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 960.8 MB in the beginning and 1.0 GB in the end (delta: -82.3 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2018-11-23 15:44:38,177 INFO L168 Benchmark]: CDTParser took 0.12 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 15:44:38,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.23 ms. Allocated memory is still 1.0 GB. Free memory was 960.8 MB in the beginning and 950.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:44:38,178 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.01 ms. Allocated memory is still 1.0 GB. Free memory is still 950.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:44:38,178 INFO L168 Benchmark]: Boogie Preprocessor took 11.94 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 944.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 15:44:38,178 INFO L168 Benchmark]: RCFGBuilder took 161.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-23 15:44:38,179 INFO L168 Benchmark]: TraceAbstraction took 647.95 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: 74.3 MB). Peak memory consumption was 74.3 MB. Max. memory is 11.5 GB. [2018-11-23 15:44:38,179 INFO L168 Benchmark]: Witness Printer took 36.62 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 15:44:38,182 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 144.23 ms. Allocated memory is still 1.0 GB. Free memory was 960.8 MB in the beginning and 950.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.01 ms. Allocated memory is still 1.0 GB. Free memory is still 950.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.94 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 944.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 161.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 647.95 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: 74.3 MB). Peak memory consumption was 74.3 MB. Max. memory is 11.5 GB. * Witness Printer took 36.62 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (i <= 2147483647 && N <= 2147483647) && j <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. SAFE Result, 0.6s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 57 SDtfs, 22 SDslu, 38 SDs, 0 SdLazy, 29 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 14 HoareAnnotationTreeSize, 5 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 1215 SizeOfPredicates, 2 NumberOfNonLiveVariables, 31 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...