./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_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_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ef49038d2ab74dd97b86bf2af92359124ff338d3 .................................................................................................................................................................................................................... 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 11:48:02,561 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:48:02,562 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:48:02,568 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:48:02,568 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:48:02,568 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:48:02,569 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:48:02,570 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:48:02,570 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:48:02,571 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:48:02,572 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:48:02,572 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:48:02,572 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:48:02,573 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:48:02,574 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:48:02,574 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:48:02,575 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:48:02,576 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:48:02,577 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:48:02,578 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:48:02,579 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:48:02,580 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:48:02,581 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:48:02,582 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:48:02,582 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:48:02,582 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:48:02,583 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:48:02,583 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:48:02,584 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:48:02,585 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:48:02,585 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:48:02,585 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:48:02,586 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:48:02,586 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:48:02,586 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:48:02,587 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:48:02,587 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-10 11:48:02,594 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:48:02,595 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:48:02,595 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:48:02,595 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 11:48:02,596 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 11:48:02,596 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 11:48:02,596 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:48:02,596 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 11:48:02,596 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:48:02,597 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:48:02,597 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:48:02,597 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:48:02,597 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:48:02,597 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 11:48:02,597 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:48:02,597 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:48:02,598 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 11:48:02,598 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 11:48:02,598 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:48:02,598 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:48:02,598 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 11:48:02,598 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:48:02,598 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:48:02,599 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:48:02,599 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 11:48:02,599 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:48:02,599 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:48:02,599 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak 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 -> Kojak 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 -> ef49038d2ab74dd97b86bf2af92359124ff338d3 [2018-11-10 11:48:02,625 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:48:02,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:48:02,636 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:48:02,638 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:48:02,638 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:48:02,638 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c [2018-11-10 11:48:02,678 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak/data/fa66bbdd8/651fadf2e59c49ddbd57ed7b5f423666/FLAG45dbbfb44 [2018-11-10 11:48:03,070 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:48:03,071 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c [2018-11-10 11:48:03,080 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak/data/fa66bbdd8/651fadf2e59c49ddbd57ed7b5f423666/FLAG45dbbfb44 [2018-11-10 11:48:03,098 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak/data/fa66bbdd8/651fadf2e59c49ddbd57ed7b5f423666 [2018-11-10 11:48:03,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:48:03,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:48:03,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:48:03,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:48:03,105 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:48:03,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:48:03" (1/1) ... [2018-11-10 11:48:03,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729766a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:03, skipping insertion in model container [2018-11-10 11:48:03,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:48:03" (1/1) ... [2018-11-10 11:48:03,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:48:03,129 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:48:03,242 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:48:03,245 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:48:03,253 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:48:03,261 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:48:03,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:03 WrapperNode [2018-11-10 11:48:03,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:48:03,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:48:03,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:48:03,262 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:48:03,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:03" (1/1) ... [2018-11-10 11:48:03,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:03" (1/1) ... [2018-11-10 11:48:03,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:48:03,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:48:03,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:48:03,280 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:48:03,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:03" (1/1) ... [2018-11-10 11:48:03,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:03" (1/1) ... [2018-11-10 11:48:03,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:03" (1/1) ... [2018-11-10 11:48:03,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:03" (1/1) ... [2018-11-10 11:48:03,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:03" (1/1) ... [2018-11-10 11:48:03,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:03" (1/1) ... [2018-11-10 11:48:03,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:03" (1/1) ... [2018-11-10 11:48:03,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:48:03,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:48:03,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:48:03,291 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:48:03,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-11-10 11:48:03,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:48:03,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:48:03,460 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:48:03,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:03 BoogieIcfgContainer [2018-11-10 11:48:03,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:48:03,461 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 11:48:03,461 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 11:48:03,467 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 11:48:03,468 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:03" (1/1) ... [2018-11-10 11:48:03,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:48:03,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:48:03,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2018-11-10 11:48:03,507 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2018-11-10 11:48:03,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-10 11:48:03,509 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:48:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:48:03,605 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 11:48:03,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:48:03,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2018-11-10 11:48:03,653 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-11-10 11:48:03,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-10 11:48:03,653 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:48:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:48:03,676 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 11:48:03,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:48:03,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2018-11-10 11:48:03,750 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2018-11-10 11:48:03,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 11:48:03,750 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:48:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:48:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 11:48:03,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:48:03,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-11-10 11:48:03,824 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-11-10 11:48:03,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 11:48:03,825 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2018-11-10 11:48:03,831 INFO L778 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2018-11-10 11:48:03,846 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 11:48:03,848 INFO L582 CodeCheckObserver]: Invariant with dag size 3 [2018-11-10 11:48:03,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 11:48:03 ImpRootNode [2018-11-10 11:48:03,853 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 11:48:03,854 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:48:03,854 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:48:03,854 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:48:03,854 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:03" (3/4) ... [2018-11-10 11:48:03,856 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 11:48:03,863 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 11:48:03,863 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 11:48:03,863 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 11:48:03,890 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1d4438af-1447-48c9-99ca-4665d1cc04fe/bin-2019/ukojak/witness.graphml [2018-11-10 11:48:03,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:48:03,891 INFO L168 Benchmark]: Toolchain (without parser) took 790.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -121.3 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:03,892 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:48:03,892 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.33 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:03,892 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.40 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 11:48:03,892 INFO L168 Benchmark]: Boogie Preprocessor took 10.12 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:03,893 INFO L168 Benchmark]: RCFGBuilder took 170.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:03,893 INFO L168 Benchmark]: CodeCheck took 392.42 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: 37.1 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:03,894 INFO L168 Benchmark]: Witness Printer took 36.73 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 11:48:03,896 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 12 locations, 2 error locations. SAFE Result, 0.3s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 22 SDslu, 8 SDs, 0 SdLazy, 104 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 113 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: x <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 159.33 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.40 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 10.12 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 170.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * CodeCheck took 392.42 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: 37.1 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. * Witness Printer took 36.73 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. RESULT: Ultimate proved your program to be correct! Received shutdown request...