./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/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 8fcad1cc5c987e49a6afac90dd5119b31f7d391b .......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 09:53:06,385 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 09:53:06,386 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 09:53:06,394 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 09:53:06,394 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 09:53:06,395 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 09:53:06,395 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 09:53:06,397 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 09:53:06,398 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 09:53:06,398 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 09:53:06,399 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 09:53:06,399 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 09:53:06,400 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 09:53:06,400 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 09:53:06,401 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 09:53:06,401 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 09:53:06,402 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 09:53:06,403 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 09:53:06,404 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 09:53:06,405 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 09:53:06,406 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 09:53:06,407 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 09:53:06,408 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 09:53:06,409 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 09:53:06,409 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 09:53:06,409 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 09:53:06,410 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 09:53:06,410 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 09:53:06,411 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 09:53:06,411 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 09:53:06,411 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 09:53:06,412 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 09:53:06,412 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 09:53:06,412 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 09:53:06,412 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 09:53:06,413 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 09:53:06,413 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 09:53:06,420 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 09:53:06,420 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 09:53:06,421 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 09:53:06,421 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 09:53:06,421 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 09:53:06,421 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 09:53:06,421 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 09:53:06,421 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 09:53:06,421 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 09:53:06,421 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 09:53:06,421 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 09:53:06,422 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 09:53:06,422 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 09:53:06,422 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 09:53:06,422 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 09:53:06,423 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 09:53:06,423 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 09:53:06,423 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 09:53:06,423 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 09:53:06,423 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 09:53:06,423 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 09:53:06,423 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 09:53:06,423 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 09:53:06,424 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 09:53:06,424 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 09:53:06,424 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 09:53:06,424 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 09:53:06,424 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 09:53:06,424 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 09:53:06,424 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 09:53:06,424 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 09:53:06,424 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 09:53:06,424 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 09:53:06,424 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_a6ea3add-bb32-4058-b79f-058a7ce78ef0/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 -> 8fcad1cc5c987e49a6afac90dd5119b31f7d391b [2018-11-10 09:53:06,448 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 09:53:06,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 09:53:06,460 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 09:53:06,461 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 09:53:06,461 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 09:53:06,462 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1_true-termination_true-no-overflow.c [2018-11-10 09:53:06,503 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/bin-2019/utaipan/data/b7eebe122/7e29196da9864c61b3bf5619d0b9b756/FLAGea050f0ac [2018-11-10 09:53:06,793 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 09:53:06,793 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1_true-termination_true-no-overflow.c [2018-11-10 09:53:06,797 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/bin-2019/utaipan/data/b7eebe122/7e29196da9864c61b3bf5619d0b9b756/FLAGea050f0ac [2018-11-10 09:53:06,805 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/bin-2019/utaipan/data/b7eebe122/7e29196da9864c61b3bf5619d0b9b756 [2018-11-10 09:53:06,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 09:53:06,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 09:53:06,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 09:53:06,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 09:53:06,810 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 09:53:06,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:53:06" (1/1) ... [2018-11-10 09:53:06,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f67bb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:53:06, skipping insertion in model container [2018-11-10 09:53:06,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:53:06" (1/1) ... [2018-11-10 09:53:06,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 09:53:06,829 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 09:53:06,919 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:53:06,921 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 09:53:06,929 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:53:06,938 INFO L193 MainTranslator]: Completed translation [2018-11-10 09:53:06,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:53:06 WrapperNode [2018-11-10 09:53:06,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 09:53:06,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 09:53:06,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 09:53:06,939 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 09:53:06,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:53:06" (1/1) ... [2018-11-10 09:53:06,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:53:06" (1/1) ... [2018-11-10 09:53:06,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 09:53:06,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 09:53:06,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 09:53:06,951 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 09:53:06,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:53:06" (1/1) ... [2018-11-10 09:53:06,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:53:06" (1/1) ... [2018-11-10 09:53:06,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:53:06" (1/1) ... [2018-11-10 09:53:06,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:53:06" (1/1) ... [2018-11-10 09:53:06,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:53:06" (1/1) ... [2018-11-10 09:53:06,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:53:06" (1/1) ... [2018-11-10 09:53:06,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:53:06" (1/1) ... [2018-11-10 09:53:06,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 09:53:06,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 09:53:06,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 09:53:06,963 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 09:53:06,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:53:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/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 [2018-11-10 09:53:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 09:53:07,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 09:53:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 09:53:07,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 09:53:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 09:53:07,034 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 09:53:07,145 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 09:53:07,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:53:07 BoogieIcfgContainer [2018-11-10 09:53:07,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 09:53:07,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 09:53:07,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 09:53:07,149 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 09:53:07,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 09:53:06" (1/3) ... [2018-11-10 09:53:07,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d363230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:53:07, skipping insertion in model container [2018-11-10 09:53:07,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:53:06" (2/3) ... [2018-11-10 09:53:07,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d363230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:53:07, skipping insertion in model container [2018-11-10 09:53:07,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:53:07" (3/3) ... [2018-11-10 09:53:07,152 INFO L112 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-easy1_true-termination_true-no-overflow.c [2018-11-10 09:53:07,160 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 09:53:07,167 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 09:53:07,181 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 09:53:07,207 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 09:53:07,207 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 09:53:07,207 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 09:53:07,207 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 09:53:07,207 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 09:53:07,207 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 09:53:07,207 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 09:53:07,208 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 09:53:07,221 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-10 09:53:07,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 09:53:07,226 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:53:07,227 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:53:07,228 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 09:53:07,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:53:07,233 INFO L82 PathProgramCache]: Analyzing trace with hash 512030507, now seen corresponding path program 1 times [2018-11-10 09:53:07,235 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 09:53:07,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:53:07,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:53:07,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:53:07,273 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 09:53:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:53:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:53:07,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:53:07,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 09:53:07,335 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 09:53:07,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 09:53:07,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 09:53:07,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 09:53:07,353 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-11-10 09:53:07,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:53:07,390 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2018-11-10 09:53:07,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 09:53:07,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-10 09:53:07,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:53:07,399 INFO L225 Difference]: With dead ends: 35 [2018-11-10 09:53:07,399 INFO L226 Difference]: Without dead ends: 23 [2018-11-10 09:53:07,401 INFO L605 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 [2018-11-10 09:53:07,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-10 09:53:07,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2018-11-10 09:53:07,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 09:53:07,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-10 09:53:07,429 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 9 [2018-11-10 09:53:07,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:53:07,429 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-10 09:53:07,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 09:53:07,429 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-10 09:53:07,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 09:53:07,430 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:53:07,430 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:53:07,430 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 09:53:07,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:53:07,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1306923416, now seen corresponding path program 1 times [2018-11-10 09:53:07,431 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 09:53:07,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:53:07,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:53:07,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:53:07,432 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 09:53:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:53:07,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:53:07,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:53:07,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 09:53:07,451 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 09:53:07,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 09:53:07,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 09:53:07,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 09:53:07,453 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 3 states. [2018-11-10 09:53:07,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:53:07,480 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-11-10 09:53:07,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 09:53:07,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 09:53:07,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:53:07,481 INFO L225 Difference]: With dead ends: 21 [2018-11-10 09:53:07,481 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 09:53:07,482 INFO L605 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 [2018-11-10 09:53:07,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 09:53:07,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 09:53:07,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 09:53:07,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-10 09:53:07,485 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 10 [2018-11-10 09:53:07,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:53:07,485 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-10 09:53:07,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 09:53:07,486 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-10 09:53:07,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 09:53:07,486 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:53:07,486 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 09:53:07,486 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 09:53:07,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:53:07,487 INFO L82 PathProgramCache]: Analyzing trace with hash 490630032, now seen corresponding path program 1 times [2018-11-10 09:53:07,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 09:53:07,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:53:07,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:53:07,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:53:07,488 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 09:53:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:53:07,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 09:53:07,509 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:53:07,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 09:53:07,509 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 09:53:07,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 09:53:07,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 09:53:07,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 09:53:07,509 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-10 09:53:07,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:53:07,527 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-10 09:53:07,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 09:53:07,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-11-10 09:53:07,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:53:07,528 INFO L225 Difference]: With dead ends: 19 [2018-11-10 09:53:07,528 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 09:53:07,528 INFO L605 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 [2018-11-10 09:53:07,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 09:53:07,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 09:53:07,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 09:53:07,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 09:53:07,529 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-10 09:53:07,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:53:07,529 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 09:53:07,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 09:53:07,529 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 09:53:07,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 09:53:07,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 09:53:07,547 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 09:53:07,547 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 09:53:07,547 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 09:53:07,547 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 09:53:07,548 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 09:53:07,548 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 09:53:07,548 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-10 09:53:07,548 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 22) no Hoare annotation was computed. [2018-11-10 09:53:07,548 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-11-10 09:53:07,548 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-11-10 09:53:07,548 INFO L421 ceAbstractionStarter]: At program point L15-2(lines 14 20) the Hoare annotation is: (<= 0 main_~x~0) [2018-11-10 09:53:07,548 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 22) no Hoare annotation was computed. [2018-11-10 09:53:07,548 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-10 09:53:07,548 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 22) the Hoare annotation is: true [2018-11-10 09:53:07,548 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-10 09:53:07,548 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2018-11-10 09:53:07,548 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-10 09:53:07,548 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-11-10 09:53:07,549 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-11-10 09:53:07,549 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 20) no Hoare annotation was computed. [2018-11-10 09:53:07,549 INFO L425 ceAbstractionStarter]: For program point L14-3(lines 14 20) no Hoare annotation was computed. [2018-11-10 09:53:07,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 09:53:07 BoogieIcfgContainer [2018-11-10 09:53:07,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 09:53:07,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 09:53:07,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 09:53:07,557 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 09:53:07,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:53:07" (3/4) ... [2018-11-10 09:53:07,560 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 09:53:07,564 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 09:53:07,564 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 09:53:07,567 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 09:53:07,568 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 09:53:07,568 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 09:53:07,592 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a6ea3add-bb32-4058-b79f-058a7ce78ef0/bin-2019/utaipan/witness.graphml [2018-11-10 09:53:07,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 09:53:07,592 INFO L168 Benchmark]: Toolchain (without parser) took 785.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -115.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-10 09:53:07,593 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-11-10 09:53:07,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 131.00 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 951.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 09:53:07,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.11 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. [2018-11-10 09:53:07,594 INFO L168 Benchmark]: Boogie Preprocessor took 11.98 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. [2018-11-10 09:53:07,595 INFO L168 Benchmark]: RCFGBuilder took 183.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-10 09:53:07,595 INFO L168 Benchmark]: TraceAbstraction took 410.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2018-11-10 09:53:07,595 INFO L168 Benchmark]: Witness Printer took 35.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 09:53:07,598 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 131.00 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 951.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.11 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 11.98 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. * RCFGBuilder took 183.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 410.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * Witness Printer took 35.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: 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: 14]: Loop Invariant Derived loop invariant: 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 4 error locations. SAFE Result, 0.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 31 SDtfs, 13 SDslu, 20 SDs, 0 SdLazy, 29 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 7 HoareAnnotationTreeSize, 5 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 520 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...