./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/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 fce4ad715fa5546a587c43eb09d1a8cb5dcde607 ................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 22:29:07,125 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 22:29:07,127 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 22:29:07,137 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 22:29:07,137 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 22:29:07,138 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 22:29:07,139 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 22:29:07,140 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 22:29:07,142 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 22:29:07,143 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 22:29:07,143 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 22:29:07,144 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 22:29:07,144 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 22:29:07,145 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 22:29:07,146 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 22:29:07,147 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 22:29:07,147 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 22:29:07,149 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 22:29:07,150 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 22:29:07,152 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 22:29:07,152 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 22:29:07,153 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 22:29:07,155 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 22:29:07,155 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 22:29:07,156 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 22:29:07,156 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 22:29:07,157 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 22:29:07,158 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 22:29:07,158 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 22:29:07,159 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 22:29:07,159 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 22:29:07,160 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 22:29:07,160 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 22:29:07,160 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 22:29:07,161 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 22:29:07,162 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 22:29:07,162 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-22 22:29:07,173 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 22:29:07,174 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 22:29:07,174 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 22:29:07,175 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-22 22:29:07,175 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 22:29:07,175 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 22:29:07,176 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 22:29:07,176 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 22:29:07,176 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 22:29:07,176 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 22:29:07,176 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 22:29:07,176 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 22:29:07,176 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 22:29:07,177 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-22 22:29:07,177 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 22:29:07,177 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 22:29:07,177 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 22:29:07,177 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-22 22:29:07,177 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-22 22:29:07,178 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 22:29:07,178 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 22:29:07,178 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-22 22:29:07,178 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 22:29:07,178 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 22:29:07,178 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 22:29:07,179 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-22 22:29:07,179 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 22:29:07,179 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 22:29:07,179 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_23be0310-1efd-4bcc-b4ba-7807693a94a2/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 -> fce4ad715fa5546a587c43eb09d1a8cb5dcde607 [2018-11-22 22:29:07,209 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 22:29:07,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 22:29:07,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 22:29:07,226 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 22:29:07,226 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 22:29:07,227 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9_true-termination_true-no-overflow.c [2018-11-22 22:29:07,274 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/bin-2019/ukojak/data/f512df604/0e8fcb7c2e5a4c028922d4c857d24b58/FLAG0de1ec250 [2018-11-22 22:29:07,633 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 22:29:07,634 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9_true-termination_true-no-overflow.c [2018-11-22 22:29:07,638 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/bin-2019/ukojak/data/f512df604/0e8fcb7c2e5a4c028922d4c857d24b58/FLAG0de1ec250 [2018-11-22 22:29:07,651 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/bin-2019/ukojak/data/f512df604/0e8fcb7c2e5a4c028922d4c857d24b58 [2018-11-22 22:29:07,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 22:29:07,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 22:29:07,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 22:29:07,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 22:29:07,658 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 22:29:07,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:29:07" (1/1) ... [2018-11-22 22:29:07,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd21f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:07, skipping insertion in model container [2018-11-22 22:29:07,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:29:07" (1/1) ... [2018-11-22 22:29:07,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 22:29:07,682 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 22:29:07,812 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:29:07,815 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 22:29:07,827 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:29:07,837 INFO L195 MainTranslator]: Completed translation [2018-11-22 22:29:07,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:07 WrapperNode [2018-11-22 22:29:07,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 22:29:07,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 22:29:07,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 22:29:07,838 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 22:29:07,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:07" (1/1) ... [2018-11-22 22:29:07,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:07" (1/1) ... [2018-11-22 22:29:07,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 22:29:07,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 22:29:07,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 22:29:07,861 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 22:29:07,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:07" (1/1) ... [2018-11-22 22:29:07,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:07" (1/1) ... [2018-11-22 22:29:07,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:07" (1/1) ... [2018-11-22 22:29:07,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:07" (1/1) ... [2018-11-22 22:29:07,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:07" (1/1) ... [2018-11-22 22:29:07,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:07" (1/1) ... [2018-11-22 22:29:07,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:07" (1/1) ... [2018-11-22 22:29:07,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 22:29:07,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 22:29:07,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 22:29:07,875 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 22:29:07,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-22 22:29:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 22:29:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 22:29:08,094 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 22:29:08,094 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-22 22:29:08,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:29:08 BoogieIcfgContainer [2018-11-22 22:29:08,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 22:29:08,095 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-22 22:29:08,095 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-22 22:29:08,103 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-22 22:29:08,104 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:29:08" (1/1) ... [2018-11-22 22:29:08,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:29:08,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 22:29:08,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2018-11-22 22:29:08,141 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-11-22 22:29:08,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-22 22:29:08,143 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 22:29:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:29:08,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:29:08,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 22:29:08,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 16 states and 23 transitions. [2018-11-22 22:29:08,314 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 23 transitions. [2018-11-22 22:29:08,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-22 22:29:08,314 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 22:29:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:29:08,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:29:08,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 22:29:08,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 20 states and 32 transitions. [2018-11-22 22:29:08,494 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 32 transitions. [2018-11-22 22:29:08,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-22 22:29:08,497 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 22:29:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:29:08,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:29:08,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 22:29:08,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 22 states and 36 transitions. [2018-11-22 22:29:08,631 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 36 transitions. [2018-11-22 22:29:08,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-22 22:29:08,632 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 22:29:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:29:08,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:29:08,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 22:29:08,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 25 states and 42 transitions. [2018-11-22 22:29:08,789 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 42 transitions. [2018-11-22 22:29:08,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-22 22:29:08,790 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 22:29:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:29:08,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 22:29:09,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 22:29:09,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2018-11-22 22:29:09,001 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2018-11-22 22:29:09,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-22 22:29:09,002 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 22:29:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:29:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 22:29:09,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 22:29:09,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 32 states and 51 transitions. [2018-11-22 22:29:09,120 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 51 transitions. [2018-11-22 22:29:09,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-22 22:29:09,121 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 22:29:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:29:09,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-22 22:29:09,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 22:29:09,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 31 states and 51 transitions. [2018-11-22 22:29:09,254 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2018-11-22 22:29:09,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-22 22:29:09,254 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 22:29:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:29:09,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-22 22:29:09,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 22:29:09,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2018-11-22 22:29:09,372 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2018-11-22 22:29:09,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-22 22:29:09,373 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 22:29:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:29:09,388 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 22:29:09,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 22:29:09,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 30 states and 49 transitions. [2018-11-22 22:29:09,436 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 49 transitions. [2018-11-22 22:29:09,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-22 22:29:09,437 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 22:29:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:29:09,450 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 22:29:09,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 22:29:09,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2018-11-22 22:29:09,471 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2018-11-22 22:29:09,472 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 22:29:09,472 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2018-11-22 22:29:09,478 INFO L775 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-11-22 22:29:09,525 INFO L579 CodeCheckObserver]: Invariant with dag size 3 [2018-11-22 22:29:09,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 10:29:09 ImpRootNode [2018-11-22 22:29:09,531 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-22 22:29:09,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 22:29:09,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 22:29:09,531 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 22:29:09,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:29:08" (3/4) ... [2018-11-22 22:29:09,534 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 22:29:09,540 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-22 22:29:09,540 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-22 22:29:09,540 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-22 22:29:09,569 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_23be0310-1efd-4bcc-b4ba-7807693a94a2/bin-2019/ukojak/witness.graphml [2018-11-22 22:29:09,570 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 22:29:09,570 INFO L168 Benchmark]: Toolchain (without parser) took 1916.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 959.1 MB in the beginning and 944.0 MB in the end (delta: 15.1 MB). Peak memory consumption was 207.5 MB. Max. memory is 11.5 GB. [2018-11-22 22:29:09,571 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:29:09,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.04 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:29:09,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.29 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:29:09,572 INFO L168 Benchmark]: Boogie Preprocessor took 13.05 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:29:09,572 INFO L168 Benchmark]: RCFGBuilder took 220.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -231.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-22 22:29:09,572 INFO L168 Benchmark]: CodeCheck took 1435.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 947.3 MB in the end (delta: 226.5 MB). Peak memory consumption was 226.5 MB. Max. memory is 11.5 GB. [2018-11-22 22:29:09,573 INFO L168 Benchmark]: Witness Printer took 38.74 ms. Allocated memory is still 1.2 GB. Free memory was 947.3 MB in the beginning and 944.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-22 22:29:09,575 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, 16 locations, 4 error locations. SAFE Result, 1.3s OverallTime, 11 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 8844 SDslu, 1024 SDs, 0 SdLazy, 36506 SolverSat, 5138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 842 GetRequests, 745 SyntacticMatches, 39 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 1833 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 22/23 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: 22]: 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: 22]: 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: q <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 182.04 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 23.29 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.05 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 220.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -231.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * CodeCheck took 1435.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 947.3 MB in the end (delta: 226.5 MB). Peak memory consumption was 226.5 MB. Max. memory is 11.5 GB. * Witness Printer took 38.74 ms. Allocated memory is still 1.2 GB. Free memory was 947.3 MB in the beginning and 944.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...