./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 ..................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:11:53,161 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:11:53,162 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:11:53,170 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:11:53,170 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:11:53,171 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:11:53,172 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:11:53,173 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:11:53,174 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:11:53,175 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:11:53,175 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:11:53,176 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:11:53,176 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:11:53,177 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:11:53,178 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:11:53,178 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:11:53,179 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:11:53,180 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:11:53,182 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:11:53,183 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:11:53,184 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:11:53,184 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:11:53,186 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:11:53,186 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:11:53,186 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:11:53,187 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:11:53,188 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:11:53,189 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:11:53,189 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:11:53,190 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:11:53,190 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:11:53,191 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:11:53,191 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:11:53,191 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:11:53,192 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:11:53,192 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:11:53,192 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 13:11:53,203 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:11:53,203 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:11:53,203 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:11:53,204 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:11:53,204 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:11:53,204 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:11:53,204 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:11:53,205 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:11:53,205 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:11:53,205 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:11:53,205 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:11:53,205 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:11:53,205 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:11:53,205 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:11:53,206 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:11:53,206 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:11:53,206 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:11:53,206 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:11:53,206 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:11:53,206 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:11:53,207 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:11:53,207 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:11:53,207 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:11:53,207 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:11:53,207 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:11:53,207 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:11:53,208 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:11:53,208 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:11:53,208 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:11:53,208 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 13:11:53,208 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_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 [2018-11-28 13:11:53,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:11:53,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:11:53,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:11:53,238 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:11:53,238 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:11:53,238 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c [2018-11-28 13:11:53,275 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/bin-2019/uautomizer/data/25892afca/41ace0648ad94cf2995d5bed71c95f39/FLAG0c7f5c0db [2018-11-28 13:11:53,654 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:11:53,654 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c [2018-11-28 13:11:53,658 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/bin-2019/uautomizer/data/25892afca/41ace0648ad94cf2995d5bed71c95f39/FLAG0c7f5c0db [2018-11-28 13:11:53,666 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/bin-2019/uautomizer/data/25892afca/41ace0648ad94cf2995d5bed71c95f39 [2018-11-28 13:11:53,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:11:53,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:11:53,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:11:53,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:11:53,672 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:11:53,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:11:53" (1/1) ... [2018-11-28 13:11:53,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cad7cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:11:53, skipping insertion in model container [2018-11-28 13:11:53,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:11:53" (1/1) ... [2018-11-28 13:11:53,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:11:53,693 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:11:53,785 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:11:53,788 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:11:53,799 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:11:53,807 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:11:53,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:11:53 WrapperNode [2018-11-28 13:11:53,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:11:53,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:11:53,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:11:53,808 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:11:53,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:11:53" (1/1) ... [2018-11-28 13:11:53,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:11:53" (1/1) ... [2018-11-28 13:11:53,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:11:53,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:11:53,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:11:53,821 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:11:53,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:11:53" (1/1) ... [2018-11-28 13:11:53,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:11:53" (1/1) ... [2018-11-28 13:11:53,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:11:53" (1/1) ... [2018-11-28 13:11:53,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:11:53" (1/1) ... [2018-11-28 13:11:53,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:11:53" (1/1) ... [2018-11-28 13:11:53,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:11:53" (1/1) ... [2018-11-28 13:11:53,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:11:53" (1/1) ... [2018-11-28 13:11:53,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:11:53,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:11:53,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:11:53,834 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:11:53,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:11:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/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 [2018-11-28 13:11:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:11:53,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:11:53,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:11:53,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:11:53,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:11:53,907 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:11:54,035 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:11:54,035 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 13:11:54,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:11:54 BoogieIcfgContainer [2018-11-28 13:11:54,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:11:54,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:11:54,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:11:54,039 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:11:54,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:11:53" (1/3) ... [2018-11-28 13:11:54,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e9fac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:11:54, skipping insertion in model container [2018-11-28 13:11:54,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:11:53" (2/3) ... [2018-11-28 13:11:54,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e9fac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:11:54, skipping insertion in model container [2018-11-28 13:11:54,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:11:54" (3/3) ... [2018-11-28 13:11:54,042 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build_true-unreach-call.i.v+lhb-reducer.c [2018-11-28 13:11:54,049 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:11:54,053 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-28 13:11:54,067 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-28 13:11:54,093 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:11:54,093 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:11:54,093 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:11:54,093 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:11:54,093 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:11:54,094 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:11:54,094 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:11:54,094 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:11:54,094 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:11:54,109 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-28 13:11:54,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 13:11:54,113 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:11:54,114 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:11:54,116 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:11:54,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:54,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1077508024, now seen corresponding path program 1 times [2018-11-28 13:11:54,123 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:54,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:54,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:54,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:11:54,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:54,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:54,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:11:54,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 13:11:54,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 13:11:54,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 13:11:54,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 13:11:54,261 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2018-11-28 13:11:54,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:11:54,306 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-11-28 13:11:54,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:11:54,307 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-28 13:11:54,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:11:54,315 INFO L225 Difference]: With dead ends: 30 [2018-11-28 13:11:54,315 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 13:11:54,318 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:11:54,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 13:11:54,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 13:11:54,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 13:11:54,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-28 13:11:54,340 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2018-11-28 13:11:54,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:11:54,341 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-28 13:11:54,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 13:11:54,341 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-28 13:11:54,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 13:11:54,341 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:11:54,341 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:11:54,342 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:11:54,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:54,342 INFO L82 PathProgramCache]: Analyzing trace with hash 398186682, now seen corresponding path program 1 times [2018-11-28 13:11:54,342 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:54,342 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:54,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:54,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:11:54,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:54,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:54,412 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:11:54,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:11:54,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:11:54,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:11:54,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:11:54,413 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 6 states. [2018-11-28 13:11:54,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:11:54,483 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-28 13:11:54,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:11:54,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-28 13:11:54,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:11:54,484 INFO L225 Difference]: With dead ends: 19 [2018-11-28 13:11:54,484 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 13:11:54,485 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:11:54,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 13:11:54,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-11-28 13:11:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 13:11:54,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-11-28 13:11:54,487 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2018-11-28 13:11:54,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:11:54,487 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-11-28 13:11:54,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:11:54,487 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-28 13:11:54,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 13:11:54,488 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:11:54,488 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:11:54,488 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 13:11:54,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:11:54,488 INFO L82 PathProgramCache]: Analyzing trace with hash 405408254, now seen corresponding path program 1 times [2018-11-28 13:11:54,488 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:11:54,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:11:54,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:54,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:11:54,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:11:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:11:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:11:54,556 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:11:54,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 13:11:54,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 13:11:54,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:11:54,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:11:54,557 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 5 states. [2018-11-28 13:11:54,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:11:54,624 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2018-11-28 13:11:54,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:11:54,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-28 13:11:54,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:11:54,625 INFO L225 Difference]: With dead ends: 25 [2018-11-28 13:11:54,625 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 13:11:54,626 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:11:54,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 13:11:54,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 13:11:54,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 13:11:54,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 13:11:54,626 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-28 13:11:54,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:11:54,627 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:11:54,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 13:11:54,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:11:54,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 13:11:54,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 13:11:54,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 13:11:54,676 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 13:11:54,676 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 13:11:54,676 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:11:54,677 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:11:54,677 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 13:11:54,677 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 13:11:54,677 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 13:11:54,677 INFO L444 ceAbstractionStarter]: At program point L64(lines 34 84) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= main_~__VERIFIER_assert__cond~0 1) (<= (+ main_~main__i~0 1) main_~main__nlen~0)) [2018-11-28 13:11:54,677 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2018-11-28 13:11:54,677 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 8 97) no Hoare annotation was computed. [2018-11-28 13:11:54,677 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 91) no Hoare annotation was computed. [2018-11-28 13:11:54,678 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 8 97) no Hoare annotation was computed. [2018-11-28 13:11:54,678 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 80) no Hoare annotation was computed. [2018-11-28 13:11:54,678 INFO L448 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-11-28 13:11:54,678 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 8 97) the Hoare annotation is: true [2018-11-28 13:11:54,678 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 84) no Hoare annotation was computed. [2018-11-28 13:11:54,678 INFO L448 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2018-11-28 13:11:54,678 INFO L444 ceAbstractionStarter]: At program point L90(lines 9 97) the Hoare annotation is: (<= 0 main_~main__i~0) [2018-11-28 13:11:54,678 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 65) no Hoare annotation was computed. [2018-11-28 13:11:54,678 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2018-11-28 13:11:54,678 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2018-11-28 13:11:54,678 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-28 13:11:54,679 INFO L444 ceAbstractionStarter]: At program point L74(lines 47 82) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= main_~__VERIFIER_assert__cond~0 1) (<= (+ main_~main__i~0 1) main_~main__nlen~0) (not (= 0 main_~__VERIFIER_assert__cond~1))) [2018-11-28 13:11:54,679 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 82) no Hoare annotation was computed. [2018-11-28 13:11:54,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:11:54 BoogieIcfgContainer [2018-11-28 13:11:54,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:11:54,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:11:54,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:11:54,690 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:11:54,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:11:54" (3/4) ... [2018-11-28 13:11:54,693 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 13:11:54,697 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 13:11:54,698 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 13:11:54,700 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-28 13:11:54,701 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 13:11:54,731 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c076727b-9a48-44cf-a8ce-0e5c8244bdb1/bin-2019/uautomizer/witness.graphml [2018-11-28 13:11:54,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:11:54,731 INFO L168 Benchmark]: Toolchain (without parser) took 1062.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 953.3 MB in the beginning and 1.0 GB in the end (delta: -75.0 MB). Peak memory consumption was 49.8 MB. Max. memory is 11.5 GB. [2018-11-28 13:11:54,732 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:11:54,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.78 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:11:54,733 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.91 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:11:54,733 INFO L168 Benchmark]: Boogie Preprocessor took 13.49 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:11:54,733 INFO L168 Benchmark]: RCFGBuilder took 201.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 13:11:54,733 INFO L168 Benchmark]: TraceAbstraction took 653.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 11.5 GB. [2018-11-28 13:11:54,734 INFO L168 Benchmark]: Witness Printer took 40.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-28 13:11:54,736 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.78 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 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 12.91 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.49 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 201.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 653.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 11.5 GB. * Witness Printer took 40.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((0 <= main__i && __VERIFIER_assert__cond == 1) && main__i + 1 <= main__nlen) && !(0 == __VERIFIER_assert__cond) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (0 <= main__i && __VERIFIER_assert__cond == 1) && main__i + 1 <= main__nlen - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 3 error locations. SAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 70 SDslu, 53 SDs, 0 SdLazy, 62 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 10 NumberOfFragments, 35 HoareAnnotationTreeSize, 7 FomulaSimplifications, 128 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1085 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...