./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/2Nested-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/2Nested-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4143c9f7038c4b8b5babb8095ecf96c00e7adcf9 ....................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 01:03:58,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:03:58,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:03:58,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:03:58,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:03:58,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:03:58,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:03:58,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:03:58,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:03:58,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:03:58,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:03:58,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:03:58,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:03:58,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:03:58,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:03:58,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:03:58,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:03:58,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:03:58,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:03:58,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:03:58,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:03:58,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:03:58,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:03:58,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:03:58,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:03:58,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:03:58,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:03:58,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:03:58,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:03:58,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:03:58,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:03:58,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:03:58,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:03:58,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:03:58,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:03:58,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:03:58,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:03:58,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:03:58,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:03:58,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:03:58,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:03:58,230 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-20 01:03:58,256 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:03:58,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:03:58,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:03:58,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:03:58,258 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:03:58,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:03:58,259 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 01:03:58,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:03:58,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:03:58,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:03:58,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:03:58,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:03:58,260 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 01:03:58,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:03:58,260 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:03:58,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:03:58,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:03:58,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:03:58,261 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:03:58,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:03:58,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:03:58,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:03:58,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:03:58,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:03:58,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:03:58,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:03:58,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:03:58,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer 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 -> Automizer 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 -> 4143c9f7038c4b8b5babb8095ecf96c00e7adcf9 [2019-11-20 01:03:58,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:03:58,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:03:58,459 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:03:58,460 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:03:58,461 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:03:58,461 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/2Nested-2.c [2019-11-20 01:03:58,512 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer/data/d314e57f6/f75bfc1cbd834dbc8dd5e94893042770/FLAGa6a987bcc [2019-11-20 01:03:58,871 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:03:58,872 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/sv-benchmarks/c/termination-crafted/2Nested-2.c [2019-11-20 01:03:58,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer/data/d314e57f6/f75bfc1cbd834dbc8dd5e94893042770/FLAGa6a987bcc [2019-11-20 01:03:58,897 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer/data/d314e57f6/f75bfc1cbd834dbc8dd5e94893042770 [2019-11-20 01:03:58,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:03:58,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:03:58,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:03:58,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:03:58,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:03:58,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:03:58" (1/1) ... [2019-11-20 01:03:58,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a5dfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:03:58, skipping insertion in model container [2019-11-20 01:03:58,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:03:58" (1/1) ... [2019-11-20 01:03:58,918 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:03:58,933 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:03:59,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:03:59,109 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:03:59,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:03:59,216 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:03:59,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:03:59 WrapperNode [2019-11-20 01:03:59,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:03:59,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:03:59,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:03:59,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:03:59,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:03:59" (1/1) ... [2019-11-20 01:03:59,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:03:59" (1/1) ... [2019-11-20 01:03:59,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:03:59,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:03:59,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:03:59,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:03:59,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:03:59" (1/1) ... [2019-11-20 01:03:59,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:03:59" (1/1) ... [2019-11-20 01:03:59,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:03:59" (1/1) ... [2019-11-20 01:03:59,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:03:59" (1/1) ... [2019-11-20 01:03:59,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:03:59" (1/1) ... [2019-11-20 01:03:59,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:03:59" (1/1) ... [2019-11-20 01:03:59,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:03:59" (1/1) ... [2019-11-20 01:03:59,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:03:59,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:03:59,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:03:59,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:03:59,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:03:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2019-11-20 01:03:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:03:59,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:03:59,500 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:03:59,500 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 01:03:59,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:03:59 BoogieIcfgContainer [2019-11-20 01:03:59,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:03:59,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:03:59,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:03:59,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:03:59,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:03:58" (1/3) ... [2019-11-20 01:03:59,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e00a310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:03:59, skipping insertion in model container [2019-11-20 01:03:59,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:03:59" (2/3) ... [2019-11-20 01:03:59,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e00a310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:03:59, skipping insertion in model container [2019-11-20 01:03:59,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:03:59" (3/3) ... [2019-11-20 01:03:59,509 INFO L109 eAbstractionObserver]: Analyzing ICFG 2Nested-2.c [2019-11-20 01:03:59,518 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:03:59,524 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-20 01:03:59,536 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-20 01:03:59,560 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:03:59,560 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 01:03:59,560 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:03:59,561 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:03:59,561 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:03:59,561 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:03:59,561 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:03:59,562 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:03:59,577 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-20 01:03:59,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 01:03:59,583 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:03:59,584 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-20 01:03:59,584 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 01:03:59,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:03:59,591 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-20 01:03:59,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:03:59,600 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486693302] [2019-11-20 01:03:59,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:03:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:03:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:03:59,713 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:03:59,714 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 01:03:59,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:03:59 BoogieIcfgContainer [2019-11-20 01:03:59,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 01:03:59,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:03:59,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:03:59,731 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:03:59,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:03:59" (3/4) ... [2019-11-20 01:03:59,734 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 01:03:59,770 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5b27afa2-067a-45b2-8981-44c130d25bec/bin/uautomizer/witness.graphml [2019-11-20 01:03:59,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:03:59,773 INFO L168 Benchmark]: Toolchain (without parser) took 870.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -202.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:03:59,773 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:03:59,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -231.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 01:03:59,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:03:59,775 INFO L168 Benchmark]: Boogie Preprocessor took 25.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:03:59,775 INFO L168 Benchmark]: RCFGBuilder took 223.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 01:03:59,776 INFO L168 Benchmark]: TraceAbstraction took 227.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-20 01:03:59,776 INFO L168 Benchmark]: Witness Printer took 39.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:03:59,779 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 314.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -231.4 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 223.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 227.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 39.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int x, y; [L17] x = __VERIFIER_nondet_int() [L18] y = __VERIFIER_nondet_int() [L19] COND TRUE x >= 0 [L20] x + y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...