./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex8.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/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 46300f8df490eeff7b37ea09f59b148489ff7bcb ...................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-28 04:40:46,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:40:46,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:40:46,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:40:46,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:40:46,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:40:46,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:40:46,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:40:46,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:40:46,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:40:46,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:40:46,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:40:46,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:40:46,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:40:46,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:40:46,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:40:46,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:40:46,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:40:46,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:40:46,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:40:46,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:40:46,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:40:46,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:40:46,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:40:46,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:40:46,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:40:46,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:40:46,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:40:46,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:40:46,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:40:46,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:40:46,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:40:46,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:40:46,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:40:46,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:40:46,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:40:46,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:40:46,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:40:46,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:40:46,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:40:46,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:40:46,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:40:46,334 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:40:46,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:40:46,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:40:46,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:40:46,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:40:46,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:40:46,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:40:46,338 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:40:46,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:40:46,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:40:46,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:40:46,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:40:46,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:40:46,340 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:40:46,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:40:46,341 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:40:46,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:40:46,341 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:40:46,341 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:40:46,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:40:46,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:40:46,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:40:46,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:40:46,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:40:46,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:40:46,343 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:40:46,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:40:46,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:40:46,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46300f8df490eeff7b37ea09f59b148489ff7bcb [2020-11-28 04:40:46,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:40:46,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:40:46,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:40:46,672 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:40:46,674 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:40:46,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex8.c [2020-11-28 04:40:46,742 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/ukojak/data/cca13c3c7/8ccdb098a759406caa2d4df55c6d416f/FLAG9963e0065 [2020-11-28 04:40:47,224 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:40:47,225 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex8.c [2020-11-28 04:40:47,231 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/ukojak/data/cca13c3c7/8ccdb098a759406caa2d4df55c6d416f/FLAG9963e0065 [2020-11-28 04:40:47,642 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/ukojak/data/cca13c3c7/8ccdb098a759406caa2d4df55c6d416f [2020-11-28 04:40:47,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:40:47,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:40:47,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:47,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:40:47,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:40:47,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@795a900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47, skipping insertion in model container [2020-11-28 04:40:47,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:40:47,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:40:47,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:47,810 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:40:47,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:47,879 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:40:47,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47 WrapperNode [2020-11-28 04:40:47,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:47,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:47,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:40:47,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:40:47,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:47,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:40:47,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:40:47,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:40:47,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:40:47,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:40:47,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:40:47,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:40:47,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/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 [2020-11-28 04:40:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:40:48,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:40:48,257 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:40:48,257 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:40:48,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:48 BoogieIcfgContainer [2020-11-28 04:40:48,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:40:48,260 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:40:48,260 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:40:48,274 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:40:48,274 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:48" (1/1) ... [2020-11-28 04:40:48,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:40:48,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:48,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-28 04:40:48,329 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-28 04:40:48,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:40:48,331 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:48,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:48,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:48,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2020-11-28 04:40:48,523 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-11-28 04:40:48,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:40:48,523 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:40:48,550 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:40:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:40:48,558 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:40:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:40:48,630 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:40:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:40:48,636 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:40:48,644 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-11-28 04:40:48,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:40:48 ImpRootNode [2020-11-28 04:40:48,661 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:40:48,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:40:48,662 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:40:48,662 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:40:48,663 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:48" (3/4) ... [2020-11-28 04:40:48,665 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:40:48,699 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7abae892-3a5f-458e-9eb2-c1dc1302e9f7/bin/ukojak/witness.graphml [2020-11-28 04:40:48,699 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:40:48,701 INFO L168 Benchmark]: Toolchain (without parser) took 1053.23 ms. Allocated memory is still 94.4 MB. Free memory was 64.7 MB in the beginning and 45.0 MB in the end (delta: 19.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:48,702 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 94.4 MB. Free memory is still 54.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:48,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.13 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 72.3 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:48,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.56 ms. Allocated memory is still 94.4 MB. Free memory was 72.3 MB in the beginning and 71.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:48,705 INFO L168 Benchmark]: Boogie Preprocessor took 24.86 ms. Allocated memory is still 94.4 MB. Free memory was 71.1 MB in the beginning and 70.2 MB in the end (delta: 977.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:48,706 INFO L168 Benchmark]: RCFGBuilder took 318.41 ms. Allocated memory is still 94.4 MB. Free memory was 70.2 MB in the beginning and 60.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:48,707 INFO L168 Benchmark]: CodeCheck took 401.00 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 46.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:48,708 INFO L168 Benchmark]: Witness Printer took 37.60 ms. Allocated memory is still 94.4 MB. Free memory was 46.7 MB in the beginning and 45.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:48,713 INFO L339 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, 12 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int q, y; [L15] q = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] COND TRUE q > 0 [L18] COND FALSE !(y > 0) [L22] y - 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 94.4 MB. Free memory is still 54.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 230.13 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 72.3 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.56 ms. Allocated memory is still 94.4 MB. Free memory was 72.3 MB in the beginning and 71.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.86 ms. Allocated memory is still 94.4 MB. Free memory was 71.1 MB in the beginning and 70.2 MB in the end (delta: 977.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 318.41 ms. Allocated memory is still 94.4 MB. Free memory was 70.2 MB in the beginning and 60.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 401.00 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 46.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 37.60 ms. Allocated memory is still 94.4 MB. Free memory was 46.7 MB in the beginning and 45.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...