./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark31_disjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark31_disjunctive.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/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 32bit --witnessprinter.graph.data.programhash b5c32c4c87bee5873040844586411da3e695cd61 ........................................................................................................................................................................................................................... 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 [2020-11-30 01:34:35,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:34:35,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:34:35,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:34:35,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:34:35,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:34:35,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:34:35,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:34:35,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:34:35,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:34:35,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:34:35,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:34:35,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:34:35,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:34:35,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:34:35,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:34:35,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:34:35,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:34:35,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:34:35,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:34:35,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:34:35,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:34:35,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:34:35,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:34:35,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:34:35,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:34:35,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:34:35,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:34:35,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:34:35,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:34:35,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:34:35,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:34:35,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:34:35,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:34:35,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:34:35,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:34:35,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:34:35,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:34:35,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:34:35,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:34:35,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:34:35,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-11-30 01:34:35,303 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:34:35,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:34:35,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:34:35,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 01:34:35,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:34:35,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:34:35,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:34:35,308 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:34:35,308 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:34:35,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:34:35,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:34:35,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:34:35,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:34:35,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:34:35,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:34:35,311 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:34:35,311 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:34:35,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:34:35,312 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:34:35,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:34:35,312 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 01:34:35,313 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 01:34:35,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:34:35,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:34:35,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 01:34:35,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:34:35,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:34:35,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:34:35,316 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 01:34:35,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:34:35,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:34:35,317 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_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5c32c4c87bee5873040844586411da3e695cd61 [2020-11-30 01:34:35,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:34:35,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:34:35,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:34:35,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:34:35,763 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:34:35,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/bin/ukojak/../../sv-benchmarks/c/loop-zilu/benchmark31_disjunctive.i [2020-11-30 01:34:35,852 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/bin/ukojak/data/68fe05b1a/f3c6377b34bc475286b6965167ac4afd/FLAG063ba10fa [2020-11-30 01:34:36,611 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:34:36,612 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/sv-benchmarks/c/loop-zilu/benchmark31_disjunctive.i [2020-11-30 01:34:36,628 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/bin/ukojak/data/68fe05b1a/f3c6377b34bc475286b6965167ac4afd/FLAG063ba10fa [2020-11-30 01:34:36,959 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/bin/ukojak/data/68fe05b1a/f3c6377b34bc475286b6965167ac4afd [2020-11-30 01:34:36,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:34:36,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:34:36,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:34:36,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:34:36,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:34:36,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:34:36" (1/1) ... [2020-11-30 01:34:36,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e35c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:34:36, skipping insertion in model container [2020-11-30 01:34:36,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:34:36" (1/1) ... [2020-11-30 01:34:36,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:34:37,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:34:37,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:34:37,199 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:34:37,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:34:37,228 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:34:37,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:34:37 WrapperNode [2020-11-30 01:34:37,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:34:37,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:34:37,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:34:37,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:34:37,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:34:37" (1/1) ... [2020-11-30 01:34:37,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:34:37" (1/1) ... [2020-11-30 01:34:37,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:34:37,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:34:37,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:34:37,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:34:37,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:34:37" (1/1) ... [2020-11-30 01:34:37,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:34:37" (1/1) ... [2020-11-30 01:34:37,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:34:37" (1/1) ... [2020-11-30 01:34:37,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:34:37" (1/1) ... [2020-11-30 01:34:37,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:34:37" (1/1) ... [2020-11-30 01:34:37,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:34:37" (1/1) ... [2020-11-30 01:34:37,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:34:37" (1/1) ... [2020-11-30 01:34:37,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:34:37,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:34:37,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:34:37,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:34:37,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:34:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/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 [2020-11-30 01:34:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:34:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:34:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:34:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:34:37,852 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:34:37,852 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 01:34:37,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:34:37 BoogieIcfgContainer [2020-11-30 01:34:37,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:34:37,856 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 01:34:37,856 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 01:34:37,869 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 01:34:37,870 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:34:37" (1/1) ... [2020-11-30 01:34:37,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:34:37,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:34:37,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2020-11-30 01:34:37,928 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-11-30 01:34:37,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:34:37,932 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:34:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:34:38,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:34:38,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:34:38,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2020-11-30 01:34:38,226 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-11-30 01:34:38,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:34:38,227 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:34:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:34:38,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:34:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:34:38,276 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:34:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:34:38,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:34:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:34:38,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:34:38,382 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-11-30 01:34:38,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 01:34:38 ImpRootNode [2020-11-30 01:34:38,430 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 01:34:38,431 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:34:38,431 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:34:38,431 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:34:38,433 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:34:37" (3/4) ... [2020-11-30 01:34:38,438 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:34:38,504 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e0b3e9ea-6af8-45ff-857d-bfc9dc4d3d8b/bin/ukojak/witness.graphml [2020-11-30 01:34:38,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:34:38,507 INFO L168 Benchmark]: Toolchain (without parser) took 1537.54 ms. Allocated memory is still 119.5 MB. Free memory was 94.5 MB in the beginning and 45.0 MB in the end (delta: 49.5 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:34:38,508 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 75.5 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:34:38,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.04 ms. Allocated memory is still 119.5 MB. Free memory was 94.1 MB in the beginning and 85.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:34:38,511 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.34 ms. Allocated memory is still 119.5 MB. Free memory was 85.0 MB in the beginning and 83.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:34:38,518 INFO L168 Benchmark]: Boogie Preprocessor took 25.44 ms. Allocated memory is still 119.5 MB. Free memory was 83.6 MB in the beginning and 82.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:34:38,522 INFO L168 Benchmark]: RCFGBuilder took 553.97 ms. Allocated memory is still 119.5 MB. Free memory was 82.6 MB in the beginning and 66.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:34:38,523 INFO L168 Benchmark]: CodeCheck took 574.09 ms. Allocated memory is still 119.5 MB. Free memory was 66.9 MB in the beginning and 46.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:34:38,525 INFO L168 Benchmark]: Witness Printer took 73.60 ms. Allocated memory is still 119.5 MB. Free memory was 46.6 MB in the beginning and 45.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:34:38,536 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, 15 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 4 SDslu, 2 SDs, 0 SdLazy, 15 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 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, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 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: 27]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(x < 0)) [L23] COND TRUE 1 [L24] COND FALSE !(x>=0) [L27] x+y * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 75.5 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 256.04 ms. Allocated memory is still 119.5 MB. Free memory was 94.1 MB in the beginning and 85.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.34 ms. Allocated memory is still 119.5 MB. Free memory was 85.0 MB in the beginning and 83.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.44 ms. Allocated memory is still 119.5 MB. Free memory was 83.6 MB in the beginning and 82.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 553.97 ms. Allocated memory is still 119.5 MB. Free memory was 82.6 MB in the beginning and 66.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 574.09 ms. Allocated memory is still 119.5 MB. Free memory was 66.9 MB in the beginning and 46.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Witness Printer took 73.60 ms. Allocated memory is still 119.5 MB. Free memory was 46.6 MB in the beginning and 45.0 MB in the end (delta: 1.6 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...