./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non_false-no-overflow.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/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 32bit --witnessprinter.graph.data.programhash d40444e4cd2a33c7365a8211a19737bb4f6f43ea ............................................................................................................................................................................................................................. 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 0.1.23-635dfa2 [2018-12-09 04:06:26,090 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 04:06:26,091 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 04:06:26,097 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 04:06:26,097 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 04:06:26,097 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 04:06:26,098 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 04:06:26,099 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 04:06:26,101 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 04:06:26,101 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 04:06:26,102 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 04:06:26,102 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 04:06:26,103 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 04:06:26,104 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 04:06:26,104 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 04:06:26,105 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 04:06:26,106 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 04:06:26,107 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 04:06:26,108 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 04:06:26,109 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 04:06:26,110 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 04:06:26,111 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 04:06:26,112 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 04:06:26,112 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 04:06:26,112 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 04:06:26,113 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 04:06:26,114 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 04:06:26,114 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 04:06:26,115 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 04:06:26,115 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 04:06:26,116 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 04:06:26,116 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 04:06:26,116 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 04:06:26,116 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 04:06:26,117 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 04:06:26,118 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 04:06:26,118 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-12-09 04:06:26,128 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 04:06:26,128 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 04:06:26,128 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 04:06:26,129 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 04:06:26,129 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 04:06:26,129 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 04:06:26,130 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 04:06:26,130 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 04:06:26,130 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 04:06:26,130 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 04:06:26,130 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 04:06:26,130 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 04:06:26,130 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 04:06:26,131 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 04:06:26,131 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 04:06:26,131 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 04:06:26,131 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 04:06:26,131 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 04:06:26,131 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 04:06:26,131 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 04:06:26,132 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 04:06:26,132 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 04:06:26,132 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 04:06:26,132 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 04:06:26,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 04:06:26,132 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 04:06:26,133 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 04:06:26,133 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 04:06:26,133 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 04:06:26,133 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 04:06:26,133 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 04:06:26,133 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_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d40444e4cd2a33c7365a8211a19737bb4f6f43ea [2018-12-09 04:06:26,156 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 04:06:26,163 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 04:06:26,165 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 04:06:26,166 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 04:06:26,166 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 04:06:26,167 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/sum_non_false-no-overflow.c [2018-12-09 04:06:26,202 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/bin-2019/ukojak/data/cdb9719a3/9879553a073848fbb722735a3b6f54d9/FLAGe2d9fe678 [2018-12-09 04:06:26,612 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 04:06:26,613 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/sv-benchmarks/c/recursive-simple/sum_non_false-no-overflow.c [2018-12-09 04:06:26,616 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/bin-2019/ukojak/data/cdb9719a3/9879553a073848fbb722735a3b6f54d9/FLAGe2d9fe678 [2018-12-09 04:06:26,624 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/bin-2019/ukojak/data/cdb9719a3/9879553a073848fbb722735a3b6f54d9 [2018-12-09 04:06:26,625 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 04:06:26,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 04:06:26,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 04:06:26,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 04:06:26,629 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 04:06:26,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:06:26" (1/1) ... [2018-12-09 04:06:26,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@709ce3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26, skipping insertion in model container [2018-12-09 04:06:26,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:06:26" (1/1) ... [2018-12-09 04:06:26,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 04:06:26,644 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 04:06:26,728 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 04:06:26,730 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 04:06:26,739 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 04:06:26,746 INFO L195 MainTranslator]: Completed translation [2018-12-09 04:06:26,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26 WrapperNode [2018-12-09 04:06:26,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 04:06:26,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 04:06:26,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 04:06:26,747 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 04:06:26,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2018-12-09 04:06:26,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2018-12-09 04:06:26,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 04:06:26,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 04:06:26,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 04:06:26,773 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 04:06:26,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2018-12-09 04:06:26,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2018-12-09 04:06:26,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2018-12-09 04:06:26,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2018-12-09 04:06:26,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2018-12-09 04:06:26,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2018-12-09 04:06:26,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2018-12-09 04:06:26,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 04:06:26,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 04:06:26,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 04:06:26,784 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 04:06:26,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/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 [2018-12-09 04:06:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 04:06:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 04:06:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2018-12-09 04:06:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2018-12-09 04:06:26,965 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 04:06:26,965 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 04:06:26,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:06:26 BoogieIcfgContainer [2018-12-09 04:06:26,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 04:06:26,966 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 04:06:26,966 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 04:06:26,976 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 04:06:26,976 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:06:26" (1/1) ... [2018-12-09 04:06:26,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 04:06:27,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:06:27,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 26 states and 27 transitions. [2018-12-09 04:06:27,019 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-12-09 04:06:27,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 04:06:27,020 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:06:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:06:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 04:06:27,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:06:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 32 transitions. [2018-12-09 04:06:27,209 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-12-09 04:06:27,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 04:06:27,209 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:06:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 04:06:27,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 04:06:27,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 04:06:27,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 32 states and 37 transitions. [2018-12-09 04:06:27,467 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2018-12-09 04:06:27,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-09 04:06:27,468 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 04:06:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 04:06:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 04:06:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 04:06:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 04:06:27,497 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2018-12-09 04:06:27,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 04:06:27 ImpRootNode [2018-12-09 04:06:27,514 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 04:06:27,514 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 04:06:27,514 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 04:06:27,514 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 04:06:27,515 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:06:26" (3/4) ... [2018-12-09 04:06:27,516 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 04:06:27,544 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_84ef5f9a-3ba5-40b1-95a3-5b28e3dd6cb0/bin-2019/ukojak/witness.graphml [2018-12-09 04:06:27,544 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 04:06:27,544 INFO L168 Benchmark]: Toolchain (without parser) took 918.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 957.1 MB in the beginning and 1.0 GB in the end (delta: -53.9 MB). Peak memory consumption was 61.5 MB. Max. memory is 11.5 GB. [2018-12-09 04:06:27,545 INFO L168 Benchmark]: CDTParser took 0.10 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. [2018-12-09 04:06:27,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 120.48 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 04:06:27,546 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.21 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 04:06:27,546 INFO L168 Benchmark]: Boogie Preprocessor took 11.51 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 04:06:27,547 INFO L168 Benchmark]: RCFGBuilder took 181.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -149.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-12-09 04:06:27,547 INFO L168 Benchmark]: CodeCheck took 547.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 11.5 GB. [2018-12-09 04:06:27,548 INFO L168 Benchmark]: Witness Printer took 29.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 04:06:27,550 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 30 locations, 8 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 70 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 6]: integer overflow possible integer overflow possible We found a FailurePath: [L13] int a = __VERIFIER_nondet_int(); [L14] int b = __VERIFIER_nondet_int(); [L15] CALL sum(a, b) VAL [\old(m)=-2147483648, \old(n)=-1] [L5] COND TRUE n <= 0 VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] [L6] m + n VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 120.48 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 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 25.21 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.51 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 181.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -149.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * CodeCheck took 547.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.3 MB). Peak memory consumption was 85.3 MB. Max. memory is 11.5 GB. * Witness Printer took 29.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...