./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-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_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/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 f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 ............................................................................................................................................................................................................................................................................................................................ 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 08:04:45,575 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:04:45,576 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:04:45,584 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:04:45,585 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:04:45,585 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:04:45,586 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:04:45,587 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:04:45,588 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:04:45,589 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:04:45,590 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:04:45,590 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:04:45,590 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:04:45,591 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:04:45,592 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:04:45,592 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:04:45,593 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:04:45,594 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:04:45,596 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:04:45,597 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:04:45,598 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:04:45,598 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:04:45,600 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:04:45,601 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:04:45,601 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:04:45,602 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:04:45,602 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:04:45,603 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:04:45,604 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:04:45,604 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:04:45,605 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:04:45,605 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:04:45,605 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:04:45,605 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:04:45,606 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:04:45,606 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:04:45,607 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-10 08:04:45,617 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:04:45,617 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:04:45,617 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 08:04:45,618 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 08:04:45,618 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:04:45,618 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:04:45,618 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:04:45,619 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 08:04:45,619 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:04:45,619 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:04:45,620 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 08:04:45,620 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 08:04:45,620 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 08:04:45,620 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 08:04:45,620 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:04:45,621 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 08:04:45,621 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 08:04:45,621 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 08:04:45,621 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:04:45,621 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 08:04:45,621 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 08:04:45,622 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:04:45,622 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 08:04:45,622 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 08:04:45,622 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 08:04:45,622 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 08:04:45,622 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 08:04:45,622 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_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/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 -> f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 [2018-11-10 08:04:45,645 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:04:45,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:04:45,655 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:04:45,656 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:04:45,656 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:04:45,656 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-11-10 08:04:45,692 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/bin-2019/ukojak/data/47a1e2fb0/dbca74db525c408f96319a20e7545e5e/FLAGd8f545b49 [2018-11-10 08:04:46,087 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:04:46,087 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-11-10 08:04:46,091 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/bin-2019/ukojak/data/47a1e2fb0/dbca74db525c408f96319a20e7545e5e/FLAGd8f545b49 [2018-11-10 08:04:46,101 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/bin-2019/ukojak/data/47a1e2fb0/dbca74db525c408f96319a20e7545e5e [2018-11-10 08:04:46,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:04:46,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:04:46,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:04:46,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:04:46,107 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:04:46,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:04:46" (1/1) ... [2018-11-10 08:04:46,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:04:46, skipping insertion in model container [2018-11-10 08:04:46,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:04:46" (1/1) ... [2018-11-10 08:04:46,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:04:46,125 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:04:46,216 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:04:46,218 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:04:46,226 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:04:46,234 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:04:46,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:04:46 WrapperNode [2018-11-10 08:04:46,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:04:46,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:04:46,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:04:46,235 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:04:46,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:04:46" (1/1) ... [2018-11-10 08:04:46,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:04:46" (1/1) ... [2018-11-10 08:04:46,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:04:46,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:04:46,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:04:46,252 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:04:46,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:04:46" (1/1) ... [2018-11-10 08:04:46,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:04:46" (1/1) ... [2018-11-10 08:04:46,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:04:46" (1/1) ... [2018-11-10 08:04:46,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:04:46" (1/1) ... [2018-11-10 08:04:46,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:04:46" (1/1) ... [2018-11-10 08:04:46,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:04:46" (1/1) ... [2018-11-10 08:04:46,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:04:46" (1/1) ... [2018-11-10 08:04:46,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:04:46,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:04:46,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:04:46,264 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:04:46,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:04:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/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 08:04:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:04:46,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:04:46,435 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:04:46,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:04:46 BoogieIcfgContainer [2018-11-10 08:04:46,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:04:46,436 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 08:04:46,436 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 08:04:46,442 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 08:04:46,442 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:04:46" (1/1) ... [2018-11-10 08:04:46,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:04:46,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2018-11-10 08:04:46,482 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2018-11-10 08:04:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 08:04:46,483 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:46,588 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 08:04:46,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2018-11-10 08:04:46,652 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-11-10 08:04:46,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 08:04:46,652 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:46,714 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 08:04:46,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:46,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2018-11-10 08:04:46,862 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2018-11-10 08:04:46,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 08:04:46,864 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:46,880 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 08:04:46,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:46,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2018-11-10 08:04:46,915 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-11-10 08:04:46,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 08:04:46,916 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:46,930 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 08:04:46,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:46,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2018-11-10 08:04:46,970 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2018-11-10 08:04:46,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 08:04:46,971 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:47,033 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:04:47,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:47,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2018-11-10 08:04:47,236 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2018-11-10 08:04:47,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 08:04:47,237 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:47,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:04:47,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:47,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2018-11-10 08:04:47,551 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2018-11-10 08:04:47,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 08:04:47,552 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:04:47,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:47,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 36 states and 52 transitions. [2018-11-10 08:04:47,863 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2018-11-10 08:04:47,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 08:04:47,864 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:47,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:04:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:48,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 41 states and 60 transitions. [2018-11-10 08:04:48,247 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2018-11-10 08:04:48,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 08:04:48,248 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:48,299 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:04:48,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:48,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 46 states and 68 transitions. [2018-11-10 08:04:48,538 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions. [2018-11-10 08:04:48,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 08:04:48,538 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:48,631 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:04:49,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:49,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 50 states and 75 transitions. [2018-11-10 08:04:49,035 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 75 transitions. [2018-11-10 08:04:49,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 08:04:49,036 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:49,103 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:04:49,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:49,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 53 states and 79 transitions. [2018-11-10 08:04:49,370 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 79 transitions. [2018-11-10 08:04:49,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 08:04:49,370 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:04:49,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:49,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 54 states and 80 transitions. [2018-11-10 08:04:49,736 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 80 transitions. [2018-11-10 08:04:49,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 08:04:49,737 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:49,750 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:04:49,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:49,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 47 states and 63 transitions. [2018-11-10 08:04:49,873 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2018-11-10 08:04:49,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 08:04:49,873 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:49,916 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:04:50,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:50,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 52 states and 70 transitions. [2018-11-10 08:04:50,356 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 70 transitions. [2018-11-10 08:04:50,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 08:04:50,357 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:50,368 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-10 08:04:50,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:50,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 53 states and 70 transitions. [2018-11-10 08:04:50,484 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2018-11-10 08:04:50,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 08:04:50,484 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 08:04:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:04:50,532 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-10 08:04:50,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 08:04:50,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2018-11-10 08:04:50,902 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2018-11-10 08:04:50,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 08:04:50,902 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 17 iterations. [2018-11-10 08:04:50,908 INFO L778 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-11-10 08:04:50,960 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 08:04:50,962 INFO L582 CodeCheckObserver]: Invariant with dag size 18 [2018-11-10 08:04:50,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 08:04:50 ImpRootNode [2018-11-10 08:04:50,968 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 08:04:50,968 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:04:50,969 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:04:50,969 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:04:50,969 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:04:46" (3/4) ... [2018-11-10 08:04:50,971 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 08:04:50,977 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-10 08:04:50,977 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 08:04:50,977 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 08:04:51,006 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8a534ca3-13ab-4fdd-bab0-2d14c3dbe854/bin-2019/ukojak/witness.graphml [2018-11-10 08:04:51,006 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:04:51,007 INFO L168 Benchmark]: Toolchain (without parser) took 4903.35 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 293.6 MB). Free memory was 960.2 MB in the beginning and 963.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 290.0 MB. Max. memory is 11.5 GB. [2018-11-10 08:04:51,008 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:04:51,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 130.13 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:04:51,008 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.21 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:04:51,008 INFO L168 Benchmark]: Boogie Preprocessor took 10.95 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:04:51,009 INFO L168 Benchmark]: RCFGBuilder took 172.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-10 08:04:51,009 INFO L168 Benchmark]: CodeCheck took 4532.32 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 184.5 MB). Free memory was 1.1 GB in the beginning and 963.8 MB in the end (delta: 131.1 MB). Peak memory consumption was 315.6 MB. Max. memory is 11.5 GB. [2018-11-10 08:04:51,009 INFO L168 Benchmark]: Witness Printer took 37.77 ms. Allocated memory is still 1.3 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:04:51,012 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, 18 locations, 4 error locations. SAFE Result, 4.4s OverallTime, 17 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65536 SDtfs, 539156 SDslu, 229160 SDs, 0 SdLazy, 2181362 SolverSat, 472574 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1971 GetRequests, 1695 SyntacticMatches, 124 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11110 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 12356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 42/135 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((2147483647 < y2 && y2 <= y1 + 2147483647) && y1 <= 2147483647) || (((0 <= y1 && y1 <= 2147483647) && y2 <= 2147483647) && 0 <= y2)) || ((2147483647 < y1 && y2 <= 2147483647) && y1 <= y2 + 2147483647) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 130.13 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.4 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 17.21 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.95 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 172.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * CodeCheck took 4532.32 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 184.5 MB). Free memory was 1.1 GB in the beginning and 963.8 MB in the end (delta: 131.1 MB). Peak memory consumption was 315.6 MB. Max. memory is 11.5 GB. * Witness Printer took 37.77 ms. Allocated memory is still 1.3 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...