./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/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 b61f9d11a7993733a89da24850eba50014a42dab .............................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:16:56,259 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:16:56,261 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:16:56,273 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:16:56,273 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:16:56,274 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:16:56,276 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:16:56,278 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:16:56,280 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:16:56,281 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:16:56,282 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:16:56,282 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:16:56,283 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:16:56,284 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:16:56,286 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:16:56,287 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:16:56,288 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:16:56,291 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:16:56,293 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:16:56,296 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:16:56,297 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:16:56,298 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:16:56,301 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:16:56,301 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:16:56,302 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:16:56,303 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:16:56,305 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:16:56,306 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:16:56,306 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:16:56,308 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:16:56,308 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:16:56,309 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:16:56,309 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:16:56,309 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:16:56,311 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:16:56,312 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:16:56,313 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-10-27 05:16:56,327 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:16:56,327 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:16:56,328 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:16:56,329 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 05:16:56,329 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 05:16:56,330 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 05:16:56,331 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:16:56,331 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:16:56,331 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:16:56,331 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:16:56,332 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:16:56,332 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:16:56,332 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:16:56,332 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:16:56,333 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:16:56,333 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:16:56,333 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-27 05:16:56,334 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-27 05:16:56,335 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:16:56,336 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:16:56,336 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-27 05:16:56,336 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:16:56,336 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:16:56,337 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:16:56,337 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-27 05:16:56,337 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:16:56,337 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:16:56,338 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_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/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 -> b61f9d11a7993733a89da24850eba50014a42dab [2018-10-27 05:16:56,371 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:16:56,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:16:56,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:16:56,392 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:16:56,393 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:16:56,394 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10_false-no-overflow.c [2018-10-27 05:16:56,470 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/bin-2019/ukojak/data/e3af71500/47d0879ccfe44d0e90f4ea3a06474894/FLAGee245c246 [2018-10-27 05:16:56,824 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:16:56,824 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.10_false-no-overflow.c [2018-10-27 05:16:56,830 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/bin-2019/ukojak/data/e3af71500/47d0879ccfe44d0e90f4ea3a06474894/FLAGee245c246 [2018-10-27 05:16:56,844 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/bin-2019/ukojak/data/e3af71500/47d0879ccfe44d0e90f4ea3a06474894 [2018-10-27 05:16:56,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:16:56,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:16:56,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:16:56,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:16:56,858 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:16:56,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:16:56" (1/1) ... [2018-10-27 05:16:56,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f80bc93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:56, skipping insertion in model container [2018-10-27 05:16:56,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:16:56" (1/1) ... [2018-10-27 05:16:56,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:16:56,894 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:16:57,025 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:16:57,028 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:16:57,041 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:16:57,052 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:16:57,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:57 WrapperNode [2018-10-27 05:16:57,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:16:57,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:16:57,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:16:57,054 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:16:57,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:57" (1/1) ... [2018-10-27 05:16:57,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:57" (1/1) ... [2018-10-27 05:16:57,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:16:57,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:16:57,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:16:57,088 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:16:57,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:57" (1/1) ... [2018-10-27 05:16:57,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:57" (1/1) ... [2018-10-27 05:16:57,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:57" (1/1) ... [2018-10-27 05:16:57,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:57" (1/1) ... [2018-10-27 05:16:57,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:57" (1/1) ... [2018-10-27 05:16:57,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:57" (1/1) ... [2018-10-27 05:16:57,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:57" (1/1) ... [2018-10-27 05:16:57,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:16:57,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:16:57,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:16:57,110 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:16:57,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/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 [2018-10-27 05:16:57,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:16:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:16:57,711 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:16:57,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:57 BoogieIcfgContainer [2018-10-27 05:16:57,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:16:57,712 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-27 05:16:57,713 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-27 05:16:57,722 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-27 05:16:57,722 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:57" (1/1) ... [2018-10-27 05:16:57,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:16:57,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:57,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2018-10-27 05:16:57,781 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-10-27 05:16:57,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-27 05:16:57,785 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:58,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:58,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:58,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2018-10-27 05:16:58,163 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2018-10-27 05:16:58,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-27 05:16:58,163 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:58,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:58,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:58,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2018-10-27 05:16:58,720 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2018-10-27 05:16:58,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-27 05:16:58,720 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:58,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:59,255 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-27 05:16:59,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:59,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2018-10-27 05:16:59,541 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2018-10-27 05:16:59,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-27 05:16:59,545 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:16:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:16:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:16:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:16:59,604 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2018-10-27 05:16:59,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 27.10 05:16:59 ImpRootNode [2018-10-27 05:16:59,626 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-27 05:16:59,627 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:16:59,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:16:59,627 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:16:59,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:57" (3/4) ... [2018-10-27 05:16:59,646 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-27 05:16:59,697 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bc4ea506-7c6b-4d1b-8f0e-88afe6d3db56/bin-2019/ukojak/witness.graphml [2018-10-27 05:16:59,697 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:16:59,698 INFO L168 Benchmark]: Toolchain (without parser) took 2848.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 958.5 MB in the beginning and 1.1 GB in the end (delta: -101.6 MB). Peak memory consumption was 55.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:59,700 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:16:59,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.84 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:59,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.60 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:16:59,702 INFO L168 Benchmark]: Boogie Preprocessor took 21.00 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 942.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:59,703 INFO L168 Benchmark]: RCFGBuilder took 602.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -199.7 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:59,704 INFO L168 Benchmark]: CodeCheck took 1913.82 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: 82.0 MB). Peak memory consumption was 82.0 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:59,705 INFO L168 Benchmark]: Witness Printer took 70.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:16:59,711 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. UNSAFE Result, 1.8s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 42 SDslu, 40 SDs, 0 SdLazy, 168 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 - CounterExampleResult [Line: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x > 0 && y < 0 [L27] EXPR x + y [L27] x = x + y [L28] y - 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.84 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 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 34.60 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.00 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 942.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 602.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -199.7 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * CodeCheck took 1913.82 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: 82.0 MB). Peak memory consumption was 82.0 MB. Max. memory is 11.5 GB. * Witness Printer took 70.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...