./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/cstrpbrk_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/termination-crafted-lit/cstrpbrk_true-termination_true-no-overflow.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 eec7850a55859668859d25c9503478e74955da1a .................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 20:50:29,785 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 20:50:29,787 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 20:50:29,799 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 20:50:29,800 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 20:50:29,801 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 20:50:29,802 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 20:50:29,804 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 20:50:29,806 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 20:50:29,807 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 20:50:29,808 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 20:50:29,808 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 20:50:29,809 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 20:50:29,810 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 20:50:29,812 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 20:50:29,813 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 20:50:29,813 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 20:50:29,816 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 20:50:29,818 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 20:50:29,819 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 20:50:29,821 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 20:50:29,822 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 20:50:29,825 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 20:50:29,825 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 20:50:29,825 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 20:50:29,826 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 20:50:29,828 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 20:50:29,828 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 20:50:29,829 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 20:50:29,831 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 20:50:29,831 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 20:50:29,831 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 20:50:29,832 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 20:50:29,832 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 20:50:29,833 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 20:50:29,834 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 20:50:29,834 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-01 20:50:29,852 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 20:50:29,856 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 20:50:29,857 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 20:50:29,858 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 20:50:29,858 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 20:50:29,858 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 20:50:29,858 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 20:50:29,858 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 20:50:29,860 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 20:50:29,860 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 20:50:29,860 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 20:50:29,860 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 20:50:29,861 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-01 20:50:29,861 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 20:50:29,861 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 20:50:29,861 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 20:50:29,861 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 20:50:29,861 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 20:50:29,863 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 20:50:29,864 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 20:50:29,864 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:50:29,864 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 20:50:29,864 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 20:50:29,864 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 20:50:29,866 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 20:50:29,866 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 20:50:29,866 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 20:50:29,866 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> eec7850a55859668859d25c9503478e74955da1a [2019-01-01 20:50:29,920 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 20:50:29,933 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 20:50:29,936 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 20:50:29,941 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 20:50:29,942 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 20:50:29,943 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/cstrpbrk_true-termination_true-no-overflow.c [2019-01-01 20:50:30,011 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30f3c5341/7b928b90bdc443249eaff517f5c17593/FLAG0de24f15c [2019-01-01 20:50:30,521 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 20:50:30,522 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/cstrpbrk_true-termination_true-no-overflow.c [2019-01-01 20:50:30,529 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30f3c5341/7b928b90bdc443249eaff517f5c17593/FLAG0de24f15c [2019-01-01 20:50:30,854 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30f3c5341/7b928b90bdc443249eaff517f5c17593 [2019-01-01 20:50:30,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 20:50:30,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 20:50:30,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 20:50:30,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 20:50:30,865 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 20:50:30,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:50:30" (1/1) ... [2019-01-01 20:50:30,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc73482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:30, skipping insertion in model container [2019-01-01 20:50:30,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 08:50:30" (1/1) ... [2019-01-01 20:50:30,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 20:50:30,901 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 20:50:31,139 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:50:31,161 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 20:50:31,191 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 20:50:31,216 INFO L195 MainTranslator]: Completed translation [2019-01-01 20:50:31,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:31 WrapperNode [2019-01-01 20:50:31,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 20:50:31,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 20:50:31,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 20:50:31,219 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 20:50:31,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:31" (1/1) ... [2019-01-01 20:50:31,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:31" (1/1) ... [2019-01-01 20:50:31,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 20:50:31,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 20:50:31,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 20:50:31,277 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 20:50:31,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:31" (1/1) ... [2019-01-01 20:50:31,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:31" (1/1) ... [2019-01-01 20:50:31,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:31" (1/1) ... [2019-01-01 20:50:31,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:31" (1/1) ... [2019-01-01 20:50:31,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:31" (1/1) ... [2019-01-01 20:50:31,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:31" (1/1) ... [2019-01-01 20:50:31,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:31" (1/1) ... [2019-01-01 20:50:31,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 20:50:31,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 20:50:31,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 20:50:31,319 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 20:50:31,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 20:50:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 20:50:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-01 20:50:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 20:50:31,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 20:50:31,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-01 20:50:31,911 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 20:50:31,911 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2019-01-01 20:50:31,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:50:31 BoogieIcfgContainer [2019-01-01 20:50:31,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 20:50:31,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 20:50:31,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 20:50:31,916 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 20:50:31,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 08:50:30" (1/3) ... [2019-01-01 20:50:31,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15099eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:50:31, skipping insertion in model container [2019-01-01 20:50:31,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 08:50:31" (2/3) ... [2019-01-01 20:50:31,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15099eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 08:50:31, skipping insertion in model container [2019-01-01 20:50:31,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:50:31" (3/3) ... [2019-01-01 20:50:31,920 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrpbrk_true-termination_true-no-overflow.c [2019-01-01 20:50:31,930 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 20:50:31,938 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-01-01 20:50:31,955 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-01-01 20:50:31,986 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 20:50:31,987 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 20:50:31,987 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 20:50:31,988 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 20:50:31,989 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 20:50:31,990 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 20:50:31,990 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 20:50:31,990 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 20:50:31,990 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 20:50:32,011 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-01-01 20:50:32,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-01 20:50:32,017 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:50:32,018 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-01 20:50:32,020 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:50:32,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:50:32,027 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2019-01-01 20:50:32,029 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:50:32,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:50:32,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:50:32,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:50:32,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:50:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:50:32,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:50:32,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:50:32,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:50:32,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:50:32,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:50:32,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:50:32,200 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2019-01-01 20:50:32,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:50:32,456 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2019-01-01 20:50:32,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:50:32,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-01 20:50:32,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:50:32,469 INFO L225 Difference]: With dead ends: 75 [2019-01-01 20:50:32,469 INFO L226 Difference]: Without dead ends: 30 [2019-01-01 20:50:32,473 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:50:32,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-01-01 20:50:32,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2019-01-01 20:50:32,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-01-01 20:50:32,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-01-01 20:50:32,508 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 4 [2019-01-01 20:50:32,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:50:32,508 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-01-01 20:50:32,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:50:32,508 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-01-01 20:50:32,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-01 20:50:32,509 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:50:32,509 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-01 20:50:32,510 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:50:32,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:50:32,510 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-01-01 20:50:32,510 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:50:32,510 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:50:32,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:50:32,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:50:32,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:50:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:50:32,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:50:32,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:50:32,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:50:32,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:50:32,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:50:32,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:50:32,545 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 3 states. [2019-01-01 20:50:32,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:50:32,742 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2019-01-01 20:50:32,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:50:32,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-01 20:50:32,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:50:32,744 INFO L225 Difference]: With dead ends: 27 [2019-01-01 20:50:32,744 INFO L226 Difference]: Without dead ends: 23 [2019-01-01 20:50:32,745 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:50:32,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-01-01 20:50:32,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2019-01-01 20:50:32,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-01 20:50:32,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-01-01 20:50:32,748 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 4 [2019-01-01 20:50:32,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:50:32,754 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-01-01 20:50:32,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:50:32,754 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-01-01 20:50:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-01 20:50:32,755 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 20:50:32,756 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-01 20:50:32,757 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-01 20:50:32,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 20:50:32,757 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2019-01-01 20:50:32,757 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 20:50:32,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 20:50:32,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:50:32,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 20:50:32,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 20:50:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 20:50:32,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 20:50:32,799 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 20:50:32,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 20:50:32,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 20:50:32,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 20:50:32,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:50:32,800 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 3 states. [2019-01-01 20:50:32,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 20:50:32,894 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-01-01 20:50:32,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 20:50:32,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-01 20:50:32,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 20:50:32,895 INFO L225 Difference]: With dead ends: 17 [2019-01-01 20:50:32,896 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 20:50:32,897 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 20:50:32,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 20:50:32,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 20:50:32,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 20:50:32,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 20:50:32,898 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-01-01 20:50:32,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 20:50:32,898 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 20:50:32,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 20:50:32,899 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 20:50:32,899 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 20:50:32,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-01 20:50:32,957 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-01-01 20:50:32,957 INFO L448 ceAbstractionStarter]: For program point L31-1(lines 31 38) no Hoare annotation was computed. [2019-01-01 20:50:32,957 INFO L448 ceAbstractionStarter]: For program point L31-3(lines 31 38) no Hoare annotation was computed. [2019-01-01 20:50:32,958 INFO L451 ceAbstractionStarter]: At program point L31-4(lines 31 38) the Hoare annotation is: true [2019-01-01 20:50:32,958 INFO L448 ceAbstractionStarter]: For program point L31-5(lines 31 38) no Hoare annotation was computed. [2019-01-01 20:50:32,958 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-01-01 20:50:32,958 INFO L444 ceAbstractionStarter]: At program point L19(lines 12 20) the Hoare annotation is: (and (<= ULTIMATE.start_build_nondet_String_~length~0 2147483647) (<= 1 ULTIMATE.start_build_nondet_String_~length~0)) [2019-01-01 20:50:32,959 INFO L451 ceAbstractionStarter]: At program point L19-1(lines 12 20) the Hoare annotation is: true [2019-01-01 20:50:32,959 INFO L451 ceAbstractionStarter]: At program point L44(lines 42 45) the Hoare annotation is: true [2019-01-01 20:50:32,959 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-01-01 20:50:32,959 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-01 20:50:32,959 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-01 20:50:32,959 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-01 20:50:32,959 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-01-01 20:50:32,960 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-01-01 20:50:32,961 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-01-01 20:50:32,961 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-01 20:50:32,962 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-01-01 20:50:32,962 INFO L448 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2019-01-01 20:50:32,962 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-01-01 20:50:32,962 INFO L448 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2019-01-01 20:50:32,962 INFO L448 ceAbstractionStarter]: For program point L34-3(lines 34 35) no Hoare annotation was computed. [2019-01-01 20:50:32,962 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-01-01 20:50:32,962 INFO L451 ceAbstractionStarter]: At program point L34-5(lines 34 35) the Hoare annotation is: true [2019-01-01 20:50:32,963 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-01-01 20:50:32,963 INFO L448 ceAbstractionStarter]: For program point L34-6(lines 34 35) no Hoare annotation was computed. [2019-01-01 20:50:32,963 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2019-01-01 20:50:32,963 INFO L448 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2019-01-01 20:50:32,963 INFO L448 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2019-01-01 20:50:32,963 INFO L448 ceAbstractionStarter]: For program point L18-3(line 18) no Hoare annotation was computed. [2019-01-01 20:50:32,963 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2019-01-01 20:50:32,963 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2019-01-01 20:50:32,963 INFO L448 ceAbstractionStarter]: For program point L14-3(lines 14 16) no Hoare annotation was computed. [2019-01-01 20:50:32,964 INFO L448 ceAbstractionStarter]: For program point L14-5(lines 14 16) no Hoare annotation was computed. [2019-01-01 20:50:32,964 INFO L451 ceAbstractionStarter]: At program point L39(lines 26 40) the Hoare annotation is: true [2019-01-01 20:50:32,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 08:50:32 BoogieIcfgContainer [2019-01-01 20:50:32,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 20:50:32,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 20:50:32,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 20:50:32,978 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 20:50:32,979 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 08:50:31" (3/4) ... [2019-01-01 20:50:32,982 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 20:50:32,993 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-01-01 20:50:32,993 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 20:50:32,994 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-01 20:50:33,060 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 20:50:33,060 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 20:50:33,061 INFO L168 Benchmark]: Toolchain (without parser) took 2202.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -104.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-01-01 20:50:33,063 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:50:33,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.77 ms. Allocated memory is still 1.0 GB. Free memory was 945.9 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:50:33,064 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.47 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 20:50:33,064 INFO L168 Benchmark]: Boogie Preprocessor took 42.06 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-01 20:50:33,065 INFO L168 Benchmark]: RCFGBuilder took 593.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 929.8 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:50:33,066 INFO L168 Benchmark]: TraceAbstraction took 1064.61 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: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. [2019-01-01 20:50:33,066 INFO L168 Benchmark]: Witness Printer took 82.46 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-01 20:50:33,070 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 357.77 ms. Allocated memory is still 1.0 GB. Free memory was 945.9 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.47 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.06 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 593.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 929.8 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1064.61 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: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. * Witness Printer took 82.46 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: 6.7 MB). Peak memory consumption was 6.7 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: 17]: 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 - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: 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 - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: length <= 2147483647 && 1 <= length - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 8 error locations. SAFE Result, 0.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 38 SDtfs, 47 SDslu, 20 SDs, 0 SdLazy, 52 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 15 NumberOfFragments, 12 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...