./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.01_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.01_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/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 d27b1f45a1cfbb95420090f54ec18e9df0353681 .......................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-10-27 05:45:10,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:45:10,076 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:45:10,088 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:45:10,089 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:45:10,090 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:45:10,093 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:45:10,095 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:45:10,097 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:45:10,100 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:45:10,102 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:45:10,102 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:45:10,103 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:45:10,105 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:45:10,112 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:45:10,113 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:45:10,114 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:45:10,115 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:45:10,116 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:45:10,117 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:45:10,120 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:45:10,121 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:45:10,123 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:45:10,123 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:45:10,123 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:45:10,124 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:45:10,125 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:45:10,125 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:45:10,128 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:45:10,131 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:45:10,132 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:45:10,133 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:45:10,133 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:45:10,133 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:45:10,134 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:45:10,134 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:45:10,135 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-10-27 05:45:10,150 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:45:10,151 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:45:10,152 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:45:10,152 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 05:45:10,153 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 05:45:10,153 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 05:45:10,153 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 05:45:10,153 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:45:10,153 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:45:10,154 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:45:10,154 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:45:10,154 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:45:10,154 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:45:10,154 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:45:10,154 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:45:10,154 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:45:10,155 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:45:10,155 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:45:10,155 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:45:10,155 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:45:10,155 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:45:10,155 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:45:10,156 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:45:10,156 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:45:10,156 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:45:10,156 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 05:45:10,156 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:45:10,156 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:45:10,156 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_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/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 -> d27b1f45a1cfbb95420090f54ec18e9df0353681 [2018-10-27 05:45:10,201 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:45:10,215 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:45:10,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:45:10,221 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:45:10,221 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:45:10,222 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.01_false-no-overflow.c [2018-10-27 05:45:10,267 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/uautomizer/data/5f86d2a65/adb2d6db899e465f850355c9536c66a9/FLAGaf67d5706 [2018-10-27 05:45:10,653 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:45:10,654 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.01_false-no-overflow.c [2018-10-27 05:45:10,660 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/uautomizer/data/5f86d2a65/adb2d6db899e465f850355c9536c66a9/FLAGaf67d5706 [2018-10-27 05:45:10,673 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/uautomizer/data/5f86d2a65/adb2d6db899e465f850355c9536c66a9 [2018-10-27 05:45:10,676 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:45:10,677 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 05:45:10,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:45:10,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:45:10,683 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:45:10,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:45:10" (1/1) ... [2018-10-27 05:45:10,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e089980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:10, skipping insertion in model container [2018-10-27 05:45:10,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:45:10" (1/1) ... [2018-10-27 05:45:10,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:45:10,714 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:45:10,854 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:45:10,857 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:45:10,870 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:45:10,880 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:45:10,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:10 WrapperNode [2018-10-27 05:45:10,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:45:10,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:45:10,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:45:10,881 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:45:10,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:10" (1/1) ... [2018-10-27 05:45:10,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:10" (1/1) ... [2018-10-27 05:45:10,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:10" (1/1) ... [2018-10-27 05:45:10,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:10" (1/1) ... [2018-10-27 05:45:10,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:10" (1/1) ... [2018-10-27 05:45:10,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:10" (1/1) ... [2018-10-27 05:45:10,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:10" (1/1) ... [2018-10-27 05:45:10,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:45:10,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:45:10,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:45:10,912 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:45:10,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/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 [2018-10-27 05:45:10,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:45:10,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:45:10,987 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:45:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-27 05:45:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:45:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:45:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:45:11,292 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:45:11,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:45:11 BoogieIcfgContainer [2018-10-27 05:45:11,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:45:11,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:45:11,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:45:11,296 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:45:11,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:45:10" (1/3) ... [2018-10-27 05:45:11,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e050821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:45:11, skipping insertion in model container [2018-10-27 05:45:11,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:45:10" (2/3) ... [2018-10-27 05:45:11,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e050821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:45:11, skipping insertion in model container [2018-10-27 05:45:11,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:45:11" (3/3) ... [2018-10-27 05:45:11,301 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.01_false-no-overflow.c [2018-10-27 05:45:11,310 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:45:11,317 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-10-27 05:45:11,331 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-10-27 05:45:11,364 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 05:45:11,374 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:45:11,375 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:45:11,375 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:45:11,375 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:45:11,375 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:45:11,375 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:45:11,375 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:45:11,375 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:45:11,392 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-10-27 05:45:11,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-27 05:45:11,398 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:45:11,399 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:45:11,401 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:45:11,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:45:11,406 INFO L82 PathProgramCache]: Analyzing trace with hash 604672971, now seen corresponding path program 1 times [2018-10-27 05:45:11,408 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:45:11,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:45:11,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:11,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:45:11,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:45:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:45:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:45:11,548 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 05:45:11,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:45:11 BoogieIcfgContainer [2018-10-27 05:45:11,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:45:11,566 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:45:11,566 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:45:11,567 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:45:11,568 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:45:11" (3/4) ... [2018-10-27 05:45:11,570 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-27 05:45:11,603 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ec205eba-10c0-43bd-81b5-4e122856e935/bin-2019/uautomizer/witness.graphml [2018-10-27 05:45:11,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:45:11,604 INFO L168 Benchmark]: Toolchain (without parser) took 927.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -148.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:45:11,605 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:45:11,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.28 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:45:11,607 INFO L168 Benchmark]: Boogie Preprocessor took 30.46 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:45:11,607 INFO L168 Benchmark]: RCFGBuilder took 380.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 943.7 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2018-10-27 05:45:11,608 INFO L168 Benchmark]: TraceAbstraction took 272.59 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: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:45:11,608 INFO L168 Benchmark]: Witness Printer took 37.35 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-10-27 05:45:11,612 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 202.28 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.46 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 380.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 943.7 MB in the beginning and 1.1 GB in the end (delta: -175.5 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 272.59 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: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * Witness Printer took 37.35 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: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 27]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x > 0 VAL [x=2147483646, y=2] [L27] x + y VAL [x=2147483646, y=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, 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: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...