./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_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_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/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 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 ......................................................................................................................................................................................................................................................................................... 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 13:59:15,975 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 13:59:15,976 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 13:59:15,982 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 13:59:15,982 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 13:59:15,983 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 13:59:15,983 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 13:59:15,984 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 13:59:15,985 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 13:59:15,986 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 13:59:15,986 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 13:59:15,986 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 13:59:15,987 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 13:59:15,987 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 13:59:15,988 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 13:59:15,988 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 13:59:15,989 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 13:59:15,990 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 13:59:15,991 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 13:59:15,992 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 13:59:15,992 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 13:59:15,993 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 13:59:15,994 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 13:59:15,994 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 13:59:15,995 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 13:59:15,995 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 13:59:15,996 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 13:59:15,996 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 13:59:15,997 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 13:59:15,997 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 13:59:15,997 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 13:59:15,998 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 13:59:15,998 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 13:59:15,998 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 13:59:15,999 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 13:59:15,999 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 13:59:15,999 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-12-08 13:59:16,006 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 13:59:16,007 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 13:59:16,007 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 13:59:16,007 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-08 13:59:16,008 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 13:59:16,008 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 13:59:16,008 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 13:59:16,008 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 13:59:16,008 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 13:59:16,008 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 13:59:16,008 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 13:59:16,009 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 13:59:16,009 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 13:59:16,009 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-08 13:59:16,009 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 13:59:16,009 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 13:59:16,009 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 13:59:16,009 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 13:59:16,009 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 13:59:16,010 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 13:59:16,010 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 13:59:16,010 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 13:59:16,010 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 13:59:16,010 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 13:59:16,010 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 13:59:16,010 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 13:59:16,010 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 13:59:16,011 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 13:59:16,011 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_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/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 -> 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 [2018-12-08 13:59:16,029 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 13:59:16,037 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 13:59:16,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 13:59:16,041 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 13:59:16,041 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 13:59:16,042 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-12-08 13:59:16,077 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/bin-2019/ukojak/data/dcf39544c/688607a11d2a42fda8b5b64d24aeb765/FLAGcb5ef8e60 [2018-12-08 13:59:16,484 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 13:59:16,484 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-12-08 13:59:16,488 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/bin-2019/ukojak/data/dcf39544c/688607a11d2a42fda8b5b64d24aeb765/FLAGcb5ef8e60 [2018-12-08 13:59:16,903 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/bin-2019/ukojak/data/dcf39544c/688607a11d2a42fda8b5b64d24aeb765 [2018-12-08 13:59:16,905 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 13:59:16,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 13:59:16,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 13:59:16,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 13:59:16,909 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 13:59:16,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:59:16" (1/1) ... [2018-12-08 13:59:16,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432dabb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:59:16, skipping insertion in model container [2018-12-08 13:59:16,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:59:16" (1/1) ... [2018-12-08 13:59:16,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 13:59:16,926 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 13:59:17,007 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:59:17,009 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 13:59:17,017 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:59:17,025 INFO L195 MainTranslator]: Completed translation [2018-12-08 13:59:17,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:59:17 WrapperNode [2018-12-08 13:59:17,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 13:59:17,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 13:59:17,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 13:59:17,026 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 13:59:17,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:59:17" (1/1) ... [2018-12-08 13:59:17,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:59:17" (1/1) ... [2018-12-08 13:59:17,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 13:59:17,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 13:59:17,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 13:59:17,043 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 13:59:17,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:59:17" (1/1) ... [2018-12-08 13:59:17,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:59:17" (1/1) ... [2018-12-08 13:59:17,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:59:17" (1/1) ... [2018-12-08 13:59:17,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:59:17" (1/1) ... [2018-12-08 13:59:17,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:59:17" (1/1) ... [2018-12-08 13:59:17,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:59:17" (1/1) ... [2018-12-08 13:59:17,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:59:17" (1/1) ... [2018-12-08 13:59:17,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 13:59:17,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 13:59:17,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 13:59:17,054 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 13:59:17,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:59:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/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 13:59:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 13:59:17,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 13:59:17,220 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 13:59:17,220 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 13:59:17,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:59:17 BoogieIcfgContainer [2018-12-08 13:59:17,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 13:59:17,221 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 13:59:17,221 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 13:59:17,229 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 13:59:17,229 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:59:17" (1/1) ... [2018-12-08 13:59:17,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:59:17,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:59:17,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2018-12-08 13:59:17,270 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-12-08 13:59:17,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-08 13:59:17,272 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:59:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:59:17,370 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 13:59:17,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:59:17,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2018-12-08 13:59:17,403 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2018-12-08 13:59:17,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-08 13:59:17,403 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:59:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:59:17,416 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 13:59:17,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:59:17,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2018-12-08 13:59:17,527 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2018-12-08 13:59:17,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 13:59:17,530 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:59:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:59:17,554 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 13:59:17,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:59:17,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2018-12-08 13:59:17,601 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2018-12-08 13:59:17,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 13:59:17,601 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:59:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:59:17,625 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 13:59:17,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:59:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2018-12-08 13:59:17,727 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2018-12-08 13:59:17,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 13:59:17,727 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:59:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:59:17,749 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 13:59:17,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:59:17,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2018-12-08 13:59:17,788 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2018-12-08 13:59:17,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 13:59:17,788 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:59:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:59:17,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 13:59:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:59:17,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2018-12-08 13:59:17,940 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2018-12-08 13:59:17,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 13:59:17,940 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:59:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:59:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 13:59:18,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:59:18,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2018-12-08 13:59:18,069 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2018-12-08 13:59:18,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 13:59:18,069 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:59:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:59:18,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 13:59:18,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:59:18,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2018-12-08 13:59:18,265 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2018-12-08 13:59:18,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 13:59:18,265 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:59:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:59:18,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:59:18,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:59:18,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2018-12-08 13:59:18,362 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2018-12-08 13:59:18,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 13:59:18,362 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:59:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:59:18,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 13:59:18,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:59:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-12-08 13:59:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-12-08 13:59:18,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 13:59:18,510 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2018-12-08 13:59:18,517 INFO L779 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-12-08 13:59:18,546 INFO L583 CodeCheckObserver]: Invariant with dag size 6 [2018-12-08 13:59:18,552 INFO L583 CodeCheckObserver]: Invariant with dag size 10 [2018-12-08 13:59:18,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 01:59:18 ImpRootNode [2018-12-08 13:59:18,553 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 13:59:18,553 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 13:59:18,553 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 13:59:18,554 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 13:59:18,554 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:59:17" (3/4) ... [2018-12-08 13:59:18,556 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 13:59:18,562 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-08 13:59:18,562 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-08 13:59:18,562 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 13:59:18,586 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_62f4ae47-b49c-46d5-9b6c-e70190e41a0b/bin-2019/ukojak/witness.graphml [2018-12-08 13:59:18,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 13:59:18,587 INFO L168 Benchmark]: Toolchain (without parser) took 1681.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 956.0 MB in the beginning and 832.7 MB in the end (delta: 123.3 MB). Peak memory consumption was 269.6 MB. Max. memory is 11.5 GB. [2018-12-08 13:59:18,588 INFO L168 Benchmark]: CDTParser took 0.15 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 13:59:18,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 118.53 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 13:59:18,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.58 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 13:59:18,588 INFO L168 Benchmark]: Boogie Preprocessor took 10.68 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 13:59:18,589 INFO L168 Benchmark]: RCFGBuilder took 166.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-08 13:59:18,589 INFO L168 Benchmark]: CodeCheck took 1332.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 839.2 MB in the end (delta: 285.3 MB). Peak memory consumption was 285.3 MB. Max. memory is 11.5 GB. [2018-12-08 13:59:18,589 INFO L168 Benchmark]: Witness Printer took 32.95 ms. Allocated memory is still 1.2 GB. Free memory was 839.2 MB in the beginning and 832.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-12-08 13:59:18,591 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, 15 locations, 4 error locations. SAFE Result, 1.2s OverallTime, 11 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1024 SDtfs, 4820 SDslu, 1024 SDs, 0 SdLazy, 24676 SolverSat, 5992 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 617 GetRequests, 520 SyntacticMatches, 25 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2093 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 991 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 10/14 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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: 17]: Loop Invariant Derived loop invariant: i <= 2147483647 && N <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((j <= 2147483647 && 1 <= i) && i <= 2147483647) && N <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 118.53 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 17.58 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 10.68 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 166.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * CodeCheck took 1332.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 839.2 MB in the end (delta: 285.3 MB). Peak memory consumption was 285.3 MB. Max. memory is 11.5 GB. * Witness Printer took 32.95 ms. Allocated memory is still 1.2 GB. Free memory was 839.2 MB in the beginning and 832.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...