./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/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 8920989884f6f43fe034219867b1db3db8f5287c ........................................................................................................................................................................................................................ 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 0.1.23-5842f4b [2018-11-18 12:54:45,242 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:54:45,244 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:54:45,250 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:54:45,251 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:54:45,251 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:54:45,252 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:54:45,253 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:54:45,254 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:54:45,255 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:54:45,255 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:54:45,256 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:54:45,256 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:54:45,257 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:54:45,258 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:54:45,258 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:54:45,259 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:54:45,260 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:54:45,261 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:54:45,262 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:54:45,263 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:54:45,264 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:54:45,266 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:54:45,266 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:54:45,266 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:54:45,267 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:54:45,267 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:54:45,268 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:54:45,268 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:54:45,269 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:54:45,269 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:54:45,270 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:54:45,270 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:54:45,270 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:54:45,271 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:54:45,271 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:54:45,271 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-18 12:54:45,280 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:54:45,280 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:54:45,281 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:54:45,281 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:54:45,281 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:54:45,282 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:54:45,282 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:54:45,282 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 12:54:45,282 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:54:45,282 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:54:45,282 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:54:45,282 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:54:45,282 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:54:45,283 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 12:54:45,283 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:54:45,283 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:54:45,283 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:54:45,283 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 12:54:45,283 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 12:54:45,283 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:54:45,284 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:54:45,284 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 12:54:45,284 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:54:45,284 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:54:45,284 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:54:45,284 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 12:54:45,284 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:54:45,284 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:54:45,285 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_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/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 -> 8920989884f6f43fe034219867b1db3db8f5287c [2018-11-18 12:54:45,306 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:54:45,316 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:54:45,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:54:45,319 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:54:45,319 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:54:45,320 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b_false-no-overflow.c [2018-11-18 12:54:45,356 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/bin-2019/ukojak/data/6ff9b5932/1ea231bc2a964ec388c6a8eafcd65894/FLAG0688776ed [2018-11-18 12:54:45,774 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:54:45,775 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig2b_false-no-overflow.c [2018-11-18 12:54:45,780 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/bin-2019/ukojak/data/6ff9b5932/1ea231bc2a964ec388c6a8eafcd65894/FLAG0688776ed [2018-11-18 12:54:45,791 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/bin-2019/ukojak/data/6ff9b5932/1ea231bc2a964ec388c6a8eafcd65894 [2018-11-18 12:54:45,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:54:45,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:54:45,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:54:45,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:54:45,799 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:54:45,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:54:45" (1/1) ... [2018-11-18 12:54:45,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24248849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:54:45, skipping insertion in model container [2018-11-18 12:54:45,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:54:45" (1/1) ... [2018-11-18 12:54:45,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:54:45,823 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:54:45,935 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:54:45,937 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:54:45,948 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:54:45,957 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:54:45,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:54:45 WrapperNode [2018-11-18 12:54:45,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:54:45,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:54:45,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:54:45,958 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:54:45,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:54:45" (1/1) ... [2018-11-18 12:54:45,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:54:45" (1/1) ... [2018-11-18 12:54:45,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:54:45,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:54:45,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:54:45,979 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:54:45,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:54:45" (1/1) ... [2018-11-18 12:54:45,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:54:45" (1/1) ... [2018-11-18 12:54:45,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:54:45" (1/1) ... [2018-11-18 12:54:45,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:54:45" (1/1) ... [2018-11-18 12:54:45,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:54:45" (1/1) ... [2018-11-18 12:54:45,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:54:45" (1/1) ... [2018-11-18 12:54:45,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:54:45" (1/1) ... [2018-11-18 12:54:45,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:54:45,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:54:45,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:54:45,991 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:54:45,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:54:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/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 [2018-11-18 12:54:46,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:54:46,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:54:46,244 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:54:46,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:54:46 BoogieIcfgContainer [2018-11-18 12:54:46,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:54:46,245 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 12:54:46,245 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 12:54:46,252 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 12:54:46,252 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:54:46" (1/1) ... [2018-11-18 12:54:46,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:54:46,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:54:46,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 49 states and 54 transitions. [2018-11-18 12:54:46,283 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-11-18 12:54:46,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 12:54:46,285 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:54:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:54:46,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:54:46,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:54:46,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 52 states and 57 transitions. [2018-11-18 12:54:46,399 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2018-11-18 12:54:46,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-18 12:54:46,399 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:54:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:54:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:54:46,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:54:46,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 51 states and 56 transitions. [2018-11-18 12:54:46,484 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2018-11-18 12:54:46,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 12:54:46,484 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:54:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:54:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:54:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:54:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:54:46,515 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2018-11-18 12:54:46,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 12:54:46 ImpRootNode [2018-11-18 12:54:46,534 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 12:54:46,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:54:46,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:54:46,534 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:54:46,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:54:46" (3/4) ... [2018-11-18 12:54:46,537 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 12:54:46,563 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_876165e9-baf2-44ef-b4ea-f4a7bb2a7ef9/bin-2019/ukojak/witness.graphml [2018-11-18 12:54:46,563 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:54:46,564 INFO L168 Benchmark]: Toolchain (without parser) took 769.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -135.4 MB). Peak memory consumption was 875.9 kB. Max. memory is 11.5 GB. [2018-11-18 12:54:46,565 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:54:46,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.51 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:54:46,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.96 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:54:46,565 INFO L168 Benchmark]: Boogie Preprocessor took 12.55 ms. Allocated memory is still 1.0 GB. Free memory is still 939.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:54:46,566 INFO L168 Benchmark]: RCFGBuilder took 253.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -173.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:54:46,566 INFO L168 Benchmark]: CodeCheck took 288.64 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-11-18 12:54:46,567 INFO L168 Benchmark]: Witness Printer took 29.11 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. [2018-11-18 12:54:46,568 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, 54 locations, 20 error locations. UNSAFE Result, 0.2s OverallTime, 3 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 14 SDslu, 4 SDs, 0 SdLazy, 40 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 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: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y; [L15] x = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] COND TRUE x >= 2 [L18] EXPR x - 1 [L18] x = x - 1 [L19] y + x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.51 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 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 19.96 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.55 ms. Allocated memory is still 1.0 GB. Free memory is still 939.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 253.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -173.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * CodeCheck took 288.64 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Witness Printer took 29.11 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...