./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/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 554582d6fc3de8e87f5dd30e5019302b6e1b96be ....................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 16:39:14,258 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 16:39:14,259 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 16:39:14,265 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 16:39:14,265 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 16:39:14,266 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 16:39:14,266 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 16:39:14,267 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 16:39:14,268 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 16:39:14,268 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 16:39:14,269 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 16:39:14,269 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 16:39:14,269 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 16:39:14,270 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 16:39:14,270 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 16:39:14,271 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 16:39:14,271 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 16:39:14,272 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 16:39:14,273 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 16:39:14,274 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 16:39:14,274 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 16:39:14,275 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 16:39:14,276 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 16:39:14,276 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 16:39:14,276 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 16:39:14,277 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 16:39:14,277 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 16:39:14,277 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 16:39:14,278 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 16:39:14,278 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 16:39:14,278 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 16:39:14,279 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 16:39:14,279 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 16:39:14,279 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 16:39:14,279 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 16:39:14,280 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 16:39:14,280 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-12-08 16:39:14,287 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 16:39:14,287 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 16:39:14,288 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 16:39:14,288 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-08 16:39:14,288 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 16:39:14,288 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 16:39:14,288 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 16:39:14,288 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 16:39:14,288 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 16:39:14,288 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 16:39:14,289 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 16:39:14,289 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 16:39:14,289 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 16:39:14,289 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-08 16:39:14,289 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 16:39:14,289 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 16:39:14,289 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 16:39:14,289 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 16:39:14,289 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 16:39:14,289 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 16:39:14,289 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 16:39:14,289 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 16:39:14,289 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 16:39:14,290 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 16:39:14,290 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 16:39:14,290 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 16:39:14,290 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 16:39:14,290 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 16:39:14,290 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_bd590b2c-7a50-4ac9-aabf-52432344d07b/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 -> 554582d6fc3de8e87f5dd30e5019302b6e1b96be [2018-12-08 16:39:14,307 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 16:39:14,313 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 16:39:14,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 16:39:14,316 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 16:39:14,316 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 16:39:14,317 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4_true-termination_true-no-overflow.c [2018-12-08 16:39:14,352 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/bin-2019/ukojak/data/cb16aaf4d/69432f837eb542e8836adf06fefcee07/FLAGfc1fab679 [2018-12-08 16:39:14,763 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 16:39:14,763 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4_true-termination_true-no-overflow.c [2018-12-08 16:39:14,767 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/bin-2019/ukojak/data/cb16aaf4d/69432f837eb542e8836adf06fefcee07/FLAGfc1fab679 [2018-12-08 16:39:14,775 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/bin-2019/ukojak/data/cb16aaf4d/69432f837eb542e8836adf06fefcee07 [2018-12-08 16:39:14,777 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 16:39:14,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 16:39:14,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 16:39:14,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 16:39:14,781 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 16:39:14,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:39:14" (1/1) ... [2018-12-08 16:39:14,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd40c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:39:14, skipping insertion in model container [2018-12-08 16:39:14,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:39:14" (1/1) ... [2018-12-08 16:39:14,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 16:39:14,796 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 16:39:14,878 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:39:14,881 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 16:39:14,890 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:39:14,898 INFO L195 MainTranslator]: Completed translation [2018-12-08 16:39:14,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:39:14 WrapperNode [2018-12-08 16:39:14,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 16:39:14,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 16:39:14,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 16:39:14,899 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 16:39:14,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:39:14" (1/1) ... [2018-12-08 16:39:14,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:39:14" (1/1) ... [2018-12-08 16:39:14,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 16:39:14,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 16:39:14,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 16:39:14,917 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 16:39:14,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:39:14" (1/1) ... [2018-12-08 16:39:14,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:39:14" (1/1) ... [2018-12-08 16:39:14,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:39:14" (1/1) ... [2018-12-08 16:39:14,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:39:14" (1/1) ... [2018-12-08 16:39:14,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:39:14" (1/1) ... [2018-12-08 16:39:14,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:39:14" (1/1) ... [2018-12-08 16:39:14,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:39:14" (1/1) ... [2018-12-08 16:39:14,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 16:39:14,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 16:39:14,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 16:39:14,926 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 16:39:14,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:39:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/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 [2018-12-08 16:39:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure p [2018-12-08 16:39:14,989 INFO L138 BoogieDeclarations]: Found implementation of procedure p [2018-12-08 16:39:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 16:39:14,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 16:39:15,082 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 16:39:15,082 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 16:39:15,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:39:15 BoogieIcfgContainer [2018-12-08 16:39:15,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 16:39:15,083 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 16:39:15,083 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 16:39:15,090 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 16:39:15,090 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:39:15" (1/1) ... [2018-12-08 16:39:15,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:39:15,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:39:15,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2018-12-08 16:39:15,130 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2018-12-08 16:39:15,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-08 16:39:15,131 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:39:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:39:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:39:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:39:15,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 32 transitions. [2018-12-08 16:39:15,281 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2018-12-08 16:39:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 16:39:15,281 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:39:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:39:15,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:39:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:39:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 31 transitions. [2018-12-08 16:39:15,347 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2018-12-08 16:39:15,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 16:39:15,349 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:39:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:39:15,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:39:15,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:39:15,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 38 transitions. [2018-12-08 16:39:15,593 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2018-12-08 16:39:15,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 16:39:15,593 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:39:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:39:15,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:39:15,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:39:15,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 37 transitions. [2018-12-08 16:39:15,660 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2018-12-08 16:39:15,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 16:39:15,660 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:39:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:39:15,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:39:15,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:39:15,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 41 transitions. [2018-12-08 16:39:15,812 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2018-12-08 16:39:15,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 16:39:15,813 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:39:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:39:15,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:39:15,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:39:15,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 40 transitions. [2018-12-08 16:39:15,962 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2018-12-08 16:39:15,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 16:39:15,963 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:39:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:39:16,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:39:16,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:39:16,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 37 states and 51 transitions. [2018-12-08 16:39:16,574 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2018-12-08 16:39:16,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 16:39:16,575 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:39:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:39:16,605 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:39:16,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:39:16,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 42 transitions. [2018-12-08 16:39:16,756 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2018-12-08 16:39:16,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 16:39:16,756 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:39:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:39:16,769 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 16:39:17,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:39:17,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 34 states and 46 transitions. [2018-12-08 16:39:17,047 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2018-12-08 16:39:17,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 16:39:17,048 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:39:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:39:17,149 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:39:17,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:39:17,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 19 states and 23 transitions. [2018-12-08 16:39:17,585 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-12-08 16:39:17,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 16:39:17,585 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2018-12-08 16:39:17,591 INFO L779 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-12-08 16:39:17,636 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-08 16:39:17,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 04:39:17 ImpRootNode [2018-12-08 16:39:17,638 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 16:39:17,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 16:39:17,639 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 16:39:17,639 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 16:39:17,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:39:15" (3/4) ... [2018-12-08 16:39:17,643 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 16:39:17,648 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure p [2018-12-08 16:39:17,652 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-08 16:39:17,652 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 16:39:17,652 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 16:39:17,683 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bd590b2c-7a50-4ac9-aabf-52432344d07b/bin-2019/ukojak/witness.graphml [2018-12-08 16:39:17,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 16:39:17,683 INFO L168 Benchmark]: Toolchain (without parser) took 2905.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.7 MB). Free memory was 956.0 MB in the beginning and 799.2 MB in the end (delta: 156.8 MB). Peak memory consumption was 355.5 MB. Max. memory is 11.5 GB. [2018-12-08 16:39:17,684 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:39:17,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 120.32 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 16:39:17,685 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.42 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:39:17,685 INFO L168 Benchmark]: Boogie Preprocessor took 9.49 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 16:39:17,685 INFO L168 Benchmark]: RCFGBuilder took 156.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -163.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-08 16:39:17,685 INFO L168 Benchmark]: CodeCheck took 2555.43 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 807.4 MB in the end (delta: 295.7 MB). Peak memory consumption was 370.7 MB. Max. memory is 11.5 GB. [2018-12-08 16:39:17,686 INFO L168 Benchmark]: Witness Printer took 44.19 ms. Allocated memory is still 1.2 GB. Free memory was 807.4 MB in the beginning and 799.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2018-12-08 16:39:17,688 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 2 procedures, 25 locations, 4 error locations. SAFE Result, 2.4s OverallTime, 11 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2844 SDtfs, 6244 SDslu, 0 SDs, 0 SdLazy, 29324 SolverSat, 7132 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 954 GetRequests, 792 SyntacticMatches, 42 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5541 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 3023 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 12/28 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: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: 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: 28]: Loop Invariant Derived loop invariant: 1 * 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 120.32 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 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 17.42 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.49 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 156.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -163.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * CodeCheck took 2555.43 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 807.4 MB in the end (delta: 295.7 MB). Peak memory consumption was 370.7 MB. Max. memory is 11.5 GB. * Witness Printer took 44.19 ms. Allocated memory is still 1.2 GB. Free memory was 807.4 MB in the beginning and 799.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...