./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1_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_87dfa473-bd2f-4ed4-a143-220c41e97bb8/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_87dfa473-bd2f-4ed4-a143-220c41e97bb8/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_87dfa473-bd2f-4ed4-a143-220c41e97bb8/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_87dfa473-bd2f-4ed4-a143-220c41e97bb8/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_87dfa473-bd2f-4ed4-a143-220c41e97bb8/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_87dfa473-bd2f-4ed4-a143-220c41e97bb8/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 ebb74e337af9534aacfcb2a7a413bdbed21e04b2 ................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 10:47:40,130 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 10:47:40,131 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 10:47:40,137 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 10:47:40,137 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 10:47:40,138 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 10:47:40,138 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 10:47:40,139 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 10:47:40,140 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 10:47:40,140 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 10:47:40,141 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 10:47:40,141 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 10:47:40,142 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 10:47:40,142 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 10:47:40,143 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 10:47:40,144 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 10:47:40,144 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 10:47:40,145 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 10:47:40,147 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 10:47:40,148 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 10:47:40,149 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 10:47:40,149 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 10:47:40,151 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 10:47:40,151 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 10:47:40,151 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 10:47:40,152 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 10:47:40,153 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 10:47:40,153 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 10:47:40,154 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 10:47:40,155 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 10:47:40,155 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 10:47:40,155 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 10:47:40,155 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 10:47:40,155 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 10:47:40,156 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 10:47:40,156 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 10:47:40,156 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_87dfa473-bd2f-4ed4-a143-220c41e97bb8/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-12-02 10:47:40,166 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 10:47:40,166 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 10:47:40,167 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 10:47:40,167 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-02 10:47:40,168 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 10:47:40,168 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 10:47:40,168 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 10:47:40,168 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 10:47:40,168 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 10:47:40,169 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 10:47:40,169 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 10:47:40,169 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 10:47:40,169 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 10:47:40,169 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-02 10:47:40,169 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 10:47:40,169 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 10:47:40,170 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 10:47:40,170 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 10:47:40,170 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 10:47:40,170 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 10:47:40,170 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 10:47:40,170 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 10:47:40,171 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 10:47:40,171 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 10:47:40,171 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 10:47:40,171 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 10:47:40,171 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 10:47:40,171 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 10:47:40,172 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_87dfa473-bd2f-4ed4-a143-220c41e97bb8/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 -> ebb74e337af9534aacfcb2a7a413bdbed21e04b2 [2018-12-02 10:47:40,194 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 10:47:40,201 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 10:47:40,203 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 10:47:40,204 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 10:47:40,205 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 10:47:40,205 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_87dfa473-bd2f-4ed4-a143-220c41e97bb8/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1_true-termination_true-no-overflow.c [2018-12-02 10:47:40,238 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_87dfa473-bd2f-4ed4-a143-220c41e97bb8/bin-2019/ukojak/data/b93ceb4ef/fc55dcee5ed34c2c96d01d0c4bbf52e1/FLAGd12dd4bb0 [2018-12-02 10:47:40,646 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 10:47:40,646 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_87dfa473-bd2f-4ed4-a143-220c41e97bb8/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex1_true-termination_true-no-overflow.c [2018-12-02 10:47:40,650 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_87dfa473-bd2f-4ed4-a143-220c41e97bb8/bin-2019/ukojak/data/b93ceb4ef/fc55dcee5ed34c2c96d01d0c4bbf52e1/FLAGd12dd4bb0 [2018-12-02 10:47:40,658 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_87dfa473-bd2f-4ed4-a143-220c41e97bb8/bin-2019/ukojak/data/b93ceb4ef/fc55dcee5ed34c2c96d01d0c4bbf52e1 [2018-12-02 10:47:40,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 10:47:40,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 10:47:40,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 10:47:40,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 10:47:40,664 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 10:47:40,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:47:40" (1/1) ... [2018-12-02 10:47:40,666 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 02.12 10:47:40, skipping insertion in model container [2018-12-02 10:47:40,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:47:40" (1/1) ... [2018-12-02 10:47:40,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 10:47:40,679 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 10:47:40,761 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 10:47:40,764 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 10:47:40,772 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 10:47:40,780 INFO L195 MainTranslator]: Completed translation [2018-12-02 10:47:40,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:47:40 WrapperNode [2018-12-02 10:47:40,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 10:47:40,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 10:47:40,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 10:47:40,781 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 10:47:40,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:47:40" (1/1) ... [2018-12-02 10:47:40,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:47:40" (1/1) ... [2018-12-02 10:47:40,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 10:47:40,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 10:47:40,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 10:47:40,799 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 10:47:40,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:47:40" (1/1) ... [2018-12-02 10:47:40,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:47:40" (1/1) ... [2018-12-02 10:47:40,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:47:40" (1/1) ... [2018-12-02 10:47:40,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:47:40" (1/1) ... [2018-12-02 10:47:40,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:47:40" (1/1) ... [2018-12-02 10:47:40,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:47:40" (1/1) ... [2018-12-02 10:47:40,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:47:40" (1/1) ... [2018-12-02 10:47:40,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 10:47:40,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 10:47:40,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 10:47:40,837 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 10:47:40,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:47:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_87dfa473-bd2f-4ed4-a143-220c41e97bb8/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 [2018-12-02 10:47:40,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 10:47:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 10:47:40,962 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 10:47:40,962 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-02 10:47:40,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:47:40 BoogieIcfgContainer [2018-12-02 10:47:40,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 10:47:40,963 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 10:47:40,963 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 10:47:40,969 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 10:47:40,969 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:47:40" (1/1) ... [2018-12-02 10:47:40,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 10:47:40,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:40,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2018-12-02 10:47:40,997 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-12-02 10:47:40,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 10:47:40,998 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:41,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:47:41,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:41,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2018-12-02 10:47:41,114 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2018-12-02 10:47:41,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 10:47:41,114 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:41,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:47:41,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:41,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2018-12-02 10:47:41,154 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2018-12-02 10:47:41,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 10:47:41,154 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:47:41,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:41,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2018-12-02 10:47:41,311 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2018-12-02 10:47:41,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 10:47:41,311 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:47:41,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:41,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 49 transitions. [2018-12-02 10:47:41,513 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2018-12-02 10:47:41,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-02 10:47:41,513 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:41,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:47:41,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:41,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 48 transitions. [2018-12-02 10:47:41,534 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2018-12-02 10:47:41,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-02 10:47:41,537 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:41,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:47:41,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:41,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2018-12-02 10:47:41,625 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2018-12-02 10:47:41,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 10:47:41,625 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:41,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:47:41,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:41,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 48 transitions. [2018-12-02 10:47:41,649 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2018-12-02 10:47:41,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 10:47:41,650 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:41,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:47:41,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:41,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 34 states and 52 transitions. [2018-12-02 10:47:41,671 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2018-12-02 10:47:41,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 10:47:41,672 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:41,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:47:42,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:42,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 36 states and 55 transitions. [2018-12-02 10:47:42,116 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 55 transitions. [2018-12-02 10:47:42,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 10:47:42,116 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:47:42,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:42,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 41 states and 61 transitions. [2018-12-02 10:47:42,457 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2018-12-02 10:47:42,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 10:47:42,457 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:47:42,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:42,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2018-12-02 10:47:42,707 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2018-12-02 10:47:42,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 10:47:42,708 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:42,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 10:47:43,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:43,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 39 states and 55 transitions. [2018-12-02 10:47:43,180 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2018-12-02 10:47:43,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 10:47:43,180 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:43,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 10:47:43,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:43,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2018-12-02 10:47:43,412 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2018-12-02 10:47:43,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 10:47:43,413 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:43,421 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 10:47:44,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2018-12-02 10:47:44,006 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2018-12-02 10:47:44,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 10:47:44,007 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-02 10:47:44,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:44,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 47 states and 61 transitions. [2018-12-02 10:47:44,069 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2018-12-02 10:47:44,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 10:47:44,069 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 10:47:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 10:47:44,076 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-02 10:47:44,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 10:47:44,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2018-12-02 10:47:44,135 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2018-12-02 10:47:44,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 10:47:44,135 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 17 iterations. [2018-12-02 10:47:44,141 INFO L779 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2018-12-02 10:47:44,201 INFO L583 CodeCheckObserver]: Invariant with dag size 20 [2018-12-02 10:47:44,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 10:47:44 ImpRootNode [2018-12-02 10:47:44,208 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 10:47:44,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 10:47:44,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 10:47:44,209 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 10:47:44,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:47:40" (3/4) ... [2018-12-02 10:47:44,211 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 10:47:44,217 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 10:47:44,217 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 10:47:44,217 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 10:47:44,242 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_87dfa473-bd2f-4ed4-a143-220c41e97bb8/bin-2019/ukojak/witness.graphml [2018-12-02 10:47:44,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 10:47:44,243 INFO L168 Benchmark]: Toolchain (without parser) took 3582.58 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 311.4 MB). Free memory was 956.0 MB in the beginning and 1.2 GB in the end (delta: -214.6 MB). Peak memory consumption was 96.8 MB. Max. memory is 11.5 GB. [2018-12-02 10:47:44,244 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-12-02 10:47:44,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 119.30 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. [2018-12-02 10:47:44,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.36 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. [2018-12-02 10:47:44,244 INFO L168 Benchmark]: Boogie Preprocessor took 38.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-02 10:47:44,245 INFO L168 Benchmark]: RCFGBuilder took 125.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-12-02 10:47:44,245 INFO L168 Benchmark]: CodeCheck took 3245.60 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -59.6 MB). Peak memory consumption was 120.8 MB. Max. memory is 11.5 GB. [2018-12-02 10:47:44,245 INFO L168 Benchmark]: Witness Printer took 34.14 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 10:47:44,247 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, 23 locations, 8 error locations. SAFE Result, 3.1s OverallTime, 17 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 131072 SDtfs, 218272 SDslu, 0 SDs, 0 SdLazy, 1472048 SolverSat, 328624 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1396 GetRequests, 1189 SyntacticMatches, 61 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9727 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 4967 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 26/46 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((q <= y + 2147483645 && y <= 2147483647) && 2147483647 < q) || ((0 <= y + 2147483648 && y <= 2147483647) && q <= 2147483647)) || ((q + y <= 2147483646 && 0 <= y + 2147483648) && 2147483647 < q) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 119.30 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 17.36 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 38.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 125.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * CodeCheck took 3245.60 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -59.6 MB). Peak memory consumption was 120.8 MB. Max. memory is 11.5 GB. * Witness Printer took 34.14 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...