./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/GulavaniGulwani-CAV2008-Fig1a_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_45b07c55-d760-4542-9193-ecaeb100dc88/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_45b07c55-d760-4542-9193-ecaeb100dc88/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_45b07c55-d760-4542-9193-ecaeb100dc88/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_45b07c55-d760-4542-9193-ecaeb100dc88/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/GulavaniGulwani-CAV2008-Fig1a_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_45b07c55-d760-4542-9193-ecaeb100dc88/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_45b07c55-d760-4542-9193-ecaeb100dc88/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 49a84f205630cc2280dd83753b3626138cc42b30 ................................................................................................................................................................................................................................ 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 [2018-11-10 12:50:55,303 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:50:55,304 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:50:55,311 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:50:55,311 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:50:55,312 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:50:55,313 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:50:55,314 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:50:55,315 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:50:55,315 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:50:55,316 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:50:55,316 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:50:55,317 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:50:55,317 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:50:55,318 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:50:55,319 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:50:55,319 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:50:55,320 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:50:55,322 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:50:55,323 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:50:55,323 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:50:55,324 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:50:55,326 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:50:55,326 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:50:55,326 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:50:55,327 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:50:55,327 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:50:55,328 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:50:55,329 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:50:55,329 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:50:55,329 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:50:55,330 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:50:55,330 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:50:55,330 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:50:55,331 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:50:55,331 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:50:55,331 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_45b07c55-d760-4542-9193-ecaeb100dc88/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 12:50:55,339 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:50:55,339 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:50:55,339 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:50:55,340 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 12:50:55,340 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:50:55,340 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:50:55,340 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 12:50:55,341 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:50:55,341 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 12:50:55,341 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:50:55,341 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:50:55,341 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:50:55,341 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:50:55,341 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:50:55,341 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 12:50:55,342 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:50:55,342 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:50:55,342 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:50:55,342 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:50:55,342 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:50:55,342 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:50:55,342 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:50:55,343 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:50:55,343 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:50:55,343 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:50:55,343 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 12:50:55,343 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:50:55,343 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:50:55,343 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_45b07c55-d760-4542-9193-ecaeb100dc88/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 -> 49a84f205630cc2280dd83753b3626138cc42b30 [2018-11-10 12:50:55,367 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:50:55,376 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:50:55,379 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:50:55,380 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:50:55,380 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:50:55,381 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_45b07c55-d760-4542-9193-ecaeb100dc88/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/GulavaniGulwani-CAV2008-Fig1a_false-no-overflow.c [2018-11-10 12:50:55,427 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45b07c55-d760-4542-9193-ecaeb100dc88/bin-2019/uautomizer/data/34b4671be/f7c48304036f471bb598dca91a3597c0/FLAG8e10712cb [2018-11-10 12:50:55,725 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:50:55,726 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_45b07c55-d760-4542-9193-ecaeb100dc88/sv-benchmarks/c/termination-crafted-lit/GulavaniGulwani-CAV2008-Fig1a_false-no-overflow.c [2018-11-10 12:50:55,731 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45b07c55-d760-4542-9193-ecaeb100dc88/bin-2019/uautomizer/data/34b4671be/f7c48304036f471bb598dca91a3597c0/FLAG8e10712cb [2018-11-10 12:50:55,741 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_45b07c55-d760-4542-9193-ecaeb100dc88/bin-2019/uautomizer/data/34b4671be/f7c48304036f471bb598dca91a3597c0 [2018-11-10 12:50:55,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:50:55,745 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 12:50:55,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:50:55,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:50:55,748 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:50:55,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:50:55" (1/1) ... [2018-11-10 12:50:55,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:55, skipping insertion in model container [2018-11-10 12:50:55,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:50:55" (1/1) ... [2018-11-10 12:50:55,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:50:55,768 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:50:55,866 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:50:55,868 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:50:55,880 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:50:55,891 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:50:55,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:55 WrapperNode [2018-11-10 12:50:55,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:50:55,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:50:55,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:50:55,892 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:50:55,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:55" (1/1) ... [2018-11-10 12:50:55,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:55" (1/1) ... [2018-11-10 12:50:55,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:55" (1/1) ... [2018-11-10 12:50:55,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:55" (1/1) ... [2018-11-10 12:50:55,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:55" (1/1) ... [2018-11-10 12:50:55,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:55" (1/1) ... [2018-11-10 12:50:55,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:55" (1/1) ... [2018-11-10 12:50:55,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:50:55,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:50:55,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:50:55,913 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:50:55,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45b07c55-d760-4542-9193-ecaeb100dc88/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 [2018-11-10 12:50:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:50:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:50:55,986 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:50:55,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 12:50:55,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:50:55,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:50:55,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:50:56,097 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:50:56,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:50:56 BoogieIcfgContainer [2018-11-10 12:50:56,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:50:56,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:50:56,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:50:56,100 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:50:56,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:50:55" (1/3) ... [2018-11-10 12:50:56,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9bcfb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:50:56, skipping insertion in model container [2018-11-10 12:50:56,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:50:55" (2/3) ... [2018-11-10 12:50:56,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9bcfb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:50:56, skipping insertion in model container [2018-11-10 12:50:56,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:50:56" (3/3) ... [2018-11-10 12:50:56,103 INFO L112 eAbstractionObserver]: Analyzing ICFG GulavaniGulwani-CAV2008-Fig1a_false-no-overflow.c [2018-11-10 12:50:56,108 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:50:56,113 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-10 12:50:56,121 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-10 12:50:56,139 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:50:56,140 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:50:56,140 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:50:56,140 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:50:56,140 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:50:56,141 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:50:56,141 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:50:56,141 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:50:56,141 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:50:56,155 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-10 12:50:56,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 12:50:56,160 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:50:56,160 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:50:56,162 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 12:50:56,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:50:56,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1148433857, now seen corresponding path program 1 times [2018-11-10 12:50:56,169 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:50:56,169 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:50:56,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:50:56,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:50:56,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:50:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:50:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:50:56,249 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:50:56,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:50:56 BoogieIcfgContainer [2018-11-10 12:50:56,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:50:56,262 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:50:56,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:50:56,262 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:50:56,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:50:56" (3/4) ... [2018-11-10 12:50:56,264 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 12:50:56,286 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_45b07c55-d760-4542-9193-ecaeb100dc88/bin-2019/uautomizer/witness.graphml [2018-11-10 12:50:56,286 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:50:56,287 INFO L168 Benchmark]: Toolchain (without parser) took 542.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:50:56,288 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:50:56,288 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.11 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:50:56,289 INFO L168 Benchmark]: Boogie Preprocessor took 20.18 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:50:56,289 INFO L168 Benchmark]: RCFGBuilder took 185.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 949.4 MB in the beginning and 1.1 GB in the end (delta: -176.9 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-11-10 12:50:56,289 INFO L168 Benchmark]: TraceAbstraction took 163.32 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-10 12:50:56,290 INFO L168 Benchmark]: Witness Printer took 24.49 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:50:56,292 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 146.11 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.18 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 185.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 949.4 MB in the beginning and 1.1 GB in the end (delta: -176.9 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 163.32 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Witness Printer took 24.49 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: 2.7 MB). Peak memory consumption was 2.7 MB. 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: [L14] int x, y, z, i; [L15] x = __VERIFIER_nondet_int() [L16] y = __VERIFIER_nondet_int() [L17] z = __VERIFIER_nondet_int() [L18] i = __VERIFIER_nondet_int() [L19] COND TRUE x < y VAL [i=2147483647, x=-1, y=0, z=0] [L20] i + 1 VAL [i=2147483647, x=-1, y=0, z=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 6 error locations. UNSAFE Result, 0.1s 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=25occurred 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...