./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore_v2_true-no-overflow_false-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore_v2_true-no-overflow_false-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/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 d3e2a15dfa55cea18ccb0a7fc8d29509c935fecf ...................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:43:21,402 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:43:21,403 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:43:21,411 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:43:21,412 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:43:21,412 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:43:21,413 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:43:21,414 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:43:21,415 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:43:21,416 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:43:21,417 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:43:21,417 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:43:21,417 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:43:21,418 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:43:21,419 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:43:21,420 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:43:21,421 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:43:21,422 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:43:21,423 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:43:21,424 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:43:21,425 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:43:21,426 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:43:21,428 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:43:21,428 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:43:21,428 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:43:21,429 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:43:21,429 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:43:21,430 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:43:21,430 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:43:21,432 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:43:21,432 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:43:21,432 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:43:21,433 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:43:21,433 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:43:21,433 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:43:21,434 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:43:21,434 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-18 10:43:21,445 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:43:21,445 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:43:21,446 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:43:21,446 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 10:43:21,446 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:43:21,446 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:43:21,446 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:43:21,447 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:43:21,447 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:43:21,447 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:43:21,447 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:43:21,447 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:43:21,447 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:43:21,447 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:43:21,448 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 10:43:21,448 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:43:21,448 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:43:21,448 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:43:21,448 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:43:21,448 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:43:21,448 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:43:21,449 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:43:21,449 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:43:21,449 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:43:21,449 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:43:21,449 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:43:21,449 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:43:21,449 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:43:21,450 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:43:21,450 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_52c8bea8-2b1c-4bed-92bf-33a725399aec/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 -> d3e2a15dfa55cea18ccb0a7fc8d29509c935fecf [2018-11-18 10:43:21,472 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:43:21,480 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:43:21,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:43:21,483 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:43:21,483 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:43:21,484 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Bangalore_v2_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-18 10:43:21,520 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/bin-2019/uautomizer/data/3e6762f1b/771af4dc82cf44798461615abef28cc8/FLAGc120e03a1 [2018-11-18 10:43:21,916 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:43:21,916 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/sv-benchmarks/c/termination-crafted/Bangalore_v2_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-18 10:43:21,920 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/bin-2019/uautomizer/data/3e6762f1b/771af4dc82cf44798461615abef28cc8/FLAGc120e03a1 [2018-11-18 10:43:21,928 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/bin-2019/uautomizer/data/3e6762f1b/771af4dc82cf44798461615abef28cc8 [2018-11-18 10:43:21,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:43:21,931 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:43:21,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:43:21,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:43:21,934 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:43:21,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:43:21" (1/1) ... [2018-11-18 10:43:21,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4546e68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:21, skipping insertion in model container [2018-11-18 10:43:21,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:43:21" (1/1) ... [2018-11-18 10:43:21,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:43:21,951 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:43:22,045 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:43:22,047 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:43:22,055 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:43:22,063 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:43:22,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:22 WrapperNode [2018-11-18 10:43:22,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:43:22,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:43:22,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:43:22,064 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:43:22,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:22" (1/1) ... [2018-11-18 10:43:22,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:22" (1/1) ... [2018-11-18 10:43:22,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:22" (1/1) ... [2018-11-18 10:43:22,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:22" (1/1) ... [2018-11-18 10:43:22,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:22" (1/1) ... [2018-11-18 10:43:22,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:22" (1/1) ... [2018-11-18 10:43:22,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:22" (1/1) ... [2018-11-18 10:43:22,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:43:22,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:43:22,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:43:22,087 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:43:22,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/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 [2018-11-18 10:43:22,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:43:22,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:43:22,165 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:43:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 10:43:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:43:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:43:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:43:22,274 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:43:22,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:43:22 BoogieIcfgContainer [2018-11-18 10:43:22,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:43:22,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:43:22,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:43:22,278 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:43:22,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:43:21" (1/3) ... [2018-11-18 10:43:22,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6456e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:43:22, skipping insertion in model container [2018-11-18 10:43:22,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:43:22" (2/3) ... [2018-11-18 10:43:22,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6456e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:43:22, skipping insertion in model container [2018-11-18 10:43:22,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:43:22" (3/3) ... [2018-11-18 10:43:22,281 INFO L112 eAbstractionObserver]: Analyzing ICFG Bangalore_v2_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-18 10:43:22,287 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:43:22,293 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-18 10:43:22,304 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-18 10:43:22,332 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:43:22,333 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:43:22,333 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:43:22,333 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:43:22,333 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:43:22,333 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:43:22,334 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:43:22,334 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:43:22,334 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:43:22,351 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-18 10:43:22,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 10:43:22,356 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:43:22,357 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:43:22,359 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:43:22,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:43:22,365 INFO L82 PathProgramCache]: Analyzing trace with hash -217682939, now seen corresponding path program 1 times [2018-11-18 10:43:22,367 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:43:22,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:43:22,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:43:22,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:43:22,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:43:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:43:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:43:22,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:43:22,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:43:22,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 10:43:22,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 10:43:22,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:43:22,564 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2018-11-18 10:43:22,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:43:22,608 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-11-18 10:43:22,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:43:22,610 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-18 10:43:22,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:43:22,617 INFO L225 Difference]: With dead ends: 29 [2018-11-18 10:43:22,617 INFO L226 Difference]: Without dead ends: 15 [2018-11-18 10:43:22,620 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:43:22,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-18 10:43:22,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-18 10:43:22,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-18 10:43:22,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-18 10:43:22,644 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2018-11-18 10:43:22,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:43:22,645 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-11-18 10:43:22,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 10:43:22,645 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-18 10:43:22,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 10:43:22,645 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:43:22,646 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:43:22,646 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:43:22,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:43:22,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1841763534, now seen corresponding path program 1 times [2018-11-18 10:43:22,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:43:22,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:43:22,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:43:22,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:43:22,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:43:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:43:22,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:43:22,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:43:22,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:43:22,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 10:43:22,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 10:43:22,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:43:22,685 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2018-11-18 10:43:22,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:43:22,713 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-11-18 10:43:22,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:43:22,713 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 10:43:22,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:43:22,713 INFO L225 Difference]: With dead ends: 15 [2018-11-18 10:43:22,713 INFO L226 Difference]: Without dead ends: 14 [2018-11-18 10:43:22,714 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:43:22,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-18 10:43:22,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-18 10:43:22,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 10:43:22,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-18 10:43:22,717 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2018-11-18 10:43:22,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:43:22,717 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-18 10:43:22,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 10:43:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-18 10:43:22,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 10:43:22,717 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:43:22,718 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:43:22,718 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:43:22,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:43:22,718 INFO L82 PathProgramCache]: Analyzing trace with hash -229724099, now seen corresponding path program 1 times [2018-11-18 10:43:22,718 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:43:22,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:43:22,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:43:22,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:43:22,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:43:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:43:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:43:22,749 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:43:22,750 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:43:22,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:43:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:43:22,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:43:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:43:22,868 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 10:43:22,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-11-18 10:43:22,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 10:43:22,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 10:43:22,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:43:22,869 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 8 states. [2018-11-18 10:43:22,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:43:22,889 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-11-18 10:43:22,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 10:43:22,889 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-18 10:43:22,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:43:22,890 INFO L225 Difference]: With dead ends: 15 [2018-11-18 10:43:22,890 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:43:22,890 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:43:22,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:43:22,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:43:22,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:43:22,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:43:22,891 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-18 10:43:22,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:43:22,891 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:43:22,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 10:43:22,892 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:43:22,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:43:22,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:43:22,930 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 10:43:22,930 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:43:22,930 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:43:22,930 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 10:43:22,930 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:43:22,930 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:43:22,930 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 22) the Hoare annotation is: true [2018-11-18 10:43:22,931 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 22) no Hoare annotation was computed. [2018-11-18 10:43:22,931 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-18 10:43:22,931 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-18 10:43:22,931 INFO L425 ceAbstractionStarter]: For program point L16(lines 16 20) no Hoare annotation was computed. [2018-11-18 10:43:22,931 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 19) no Hoare annotation was computed. [2018-11-18 10:43:22,931 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-18 10:43:22,931 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 19) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= main_~y~0 2147483647) (<= 0 main_~y~0)) [2018-11-18 10:43:22,931 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 22) no Hoare annotation was computed. [2018-11-18 10:43:22,931 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-18 10:43:22,932 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-18 10:43:22,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:43:22 BoogieIcfgContainer [2018-11-18 10:43:22,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:43:22,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:43:22,941 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:43:22,941 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:43:22,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:43:22" (3/4) ... [2018-11-18 10:43:22,943 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:43:22,948 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:43:22,948 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:43:22,950 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 10:43:22,950 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 10:43:22,951 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:43:22,980 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_52c8bea8-2b1c-4bed-92bf-33a725399aec/bin-2019/uautomizer/witness.graphml [2018-11-18 10:43:22,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:43:22,981 INFO L168 Benchmark]: Toolchain (without parser) took 1050.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 954.8 MB in the beginning and 1.1 GB in the end (delta: -111.4 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:43:22,982 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:43:22,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 132.56 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 943.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:43:22,983 INFO L168 Benchmark]: Boogie Preprocessor took 22.66 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:43:22,983 INFO L168 Benchmark]: RCFGBuilder took 188.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:43:22,984 INFO L168 Benchmark]: TraceAbstraction took 664.50 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: 56.8 MB). Peak memory consumption was 56.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:43:22,984 INFO L168 Benchmark]: Witness Printer took 39.87 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:43:22,987 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 132.56 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 943.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.66 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 188.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 664.50 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: 56.8 MB). Peak memory consumption was 56.8 MB. Max. memory is 11.5 GB. * Witness Printer took 39.87 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (x <= 2147483647 && y <= 2147483647) && 0 <= y - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 17 locations, 2 error locations. SAFE Result, 0.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 32 SDslu, 43 SDs, 0 SdLazy, 31 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 14 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 21 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 1559 SizeOfPredicates, 0 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...