./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0ab550a6e9aa370752671d7ad69781384c889e75 .................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:16:04,285 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:16:04,286 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:16:04,293 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:16:04,293 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:16:04,294 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:16:04,295 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:16:04,296 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:16:04,297 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:16:04,297 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:16:04,298 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:16:04,298 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:16:04,299 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:16:04,299 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:16:04,300 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:16:04,301 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:16:04,301 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:16:04,302 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:16:04,304 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:16:04,304 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:16:04,305 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:16:04,306 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:16:04,307 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:16:04,308 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:16:04,308 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:16:04,309 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:16:04,309 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:16:04,310 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:16:04,310 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:16:04,311 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:16:04,311 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:16:04,312 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:16:04,312 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:16:04,312 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:16:04,313 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:16:04,313 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:16:04,313 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 16:16:04,323 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:16:04,323 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:16:04,324 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:16:04,324 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:16:04,324 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:16:04,324 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:16:04,324 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:16:04,324 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 16:16:04,325 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:16:04,325 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:16:04,325 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 16:16:04,325 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 16:16:04,325 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:16:04,325 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:16:04,325 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:16:04,326 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:16:04,326 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:16:04,326 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:16:04,326 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:16:04,326 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:16:04,326 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:16:04,326 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:16:04,327 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:16:04,327 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:16:04,327 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:16:04,327 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:16:04,327 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:16:04,327 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:16:04,327 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:16:04,327 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:16:04,327 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:16:04,328 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:16:04,328 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:16:04,328 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 16:16:04,328 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:16:04,328 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:16:04,328 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 16:16:04,328 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan 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 -> Taipan 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 -> 0ab550a6e9aa370752671d7ad69781384c889e75 [2018-11-18 16:16:04,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:16:04,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:16:04,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:16:04,364 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:16:04,364 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:16:04,364 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan/../../sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i [2018-11-18 16:16:04,407 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan/data/e552627b9/8f03a629d84d4677ad042102730b6798/FLAG810eb42b6 [2018-11-18 16:16:04,811 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:16:04,812 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i [2018-11-18 16:16:04,815 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan/data/e552627b9/8f03a629d84d4677ad042102730b6798/FLAG810eb42b6 [2018-11-18 16:16:04,825 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan/data/e552627b9/8f03a629d84d4677ad042102730b6798 [2018-11-18 16:16:04,828 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:16:04,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:16:04,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:16:04,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:16:04,833 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:16:04,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:16:04" (1/1) ... [2018-11-18 16:16:04,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4546e68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:16:04, skipping insertion in model container [2018-11-18 16:16:04,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:16:04" (1/1) ... [2018-11-18 16:16:04,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:16:04,860 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:16:04,972 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:16:04,974 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:16:04,984 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:16:04,992 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:16:04,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:16:04 WrapperNode [2018-11-18 16:16:04,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:16:04,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:16:04,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:16:04,992 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:16:04,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:16:04" (1/1) ... [2018-11-18 16:16:05,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:16:04" (1/1) ... [2018-11-18 16:16:05,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:16:05,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:16:05,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:16:05,004 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:16:05,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:16:04" (1/1) ... [2018-11-18 16:16:05,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:16:04" (1/1) ... [2018-11-18 16:16:05,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:16:04" (1/1) ... [2018-11-18 16:16:05,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:16:04" (1/1) ... [2018-11-18 16:16:05,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:16:04" (1/1) ... [2018-11-18 16:16:05,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:16:04" (1/1) ... [2018-11-18 16:16:05,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:16:04" (1/1) ... [2018-11-18 16:16:05,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:16:05,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:16:05,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:16:05,015 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:16:05,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:16:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:16:05,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:16:05,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:16:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:16:05,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:16:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:16:05,088 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:16:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 16:16:05,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 16:16:05,191 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:16:05,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:16:05 BoogieIcfgContainer [2018-11-18 16:16:05,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:16:05,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:16:05,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:16:05,194 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:16:05,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:16:04" (1/3) ... [2018-11-18 16:16:05,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bce4729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:16:05, skipping insertion in model container [2018-11-18 16:16:05,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:16:04" (2/3) ... [2018-11-18 16:16:05,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bce4729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:16:05, skipping insertion in model container [2018-11-18 16:16:05,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:16:05" (3/3) ... [2018-11-18 16:16:05,196 INFO L112 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1_false-unreach-call_true-termination.i [2018-11-18 16:16:05,201 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:16:05,205 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:16:05,214 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:16:05,234 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:16:05,234 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:16:05,235 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:16:05,235 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:16:05,235 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:16:05,235 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:16:05,235 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:16:05,235 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:16:05,248 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-18 16:16:05,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 16:16:05,252 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:16:05,252 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:16:05,254 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:16:05,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:16:05,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1420455248, now seen corresponding path program 1 times [2018-11-18 16:16:05,258 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:16:05,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:16:05,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:16:05,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:16:05,294 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:16:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:16:05,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:16:05,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:16:05,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:16:05,332 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:16:05,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:16:05,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:16:05,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:16:05,344 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2018-11-18 16:16:05,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:16:05,357 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2018-11-18 16:16:05,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:16:05,358 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-18 16:16:05,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:16:05,363 INFO L225 Difference]: With dead ends: 42 [2018-11-18 16:16:05,364 INFO L226 Difference]: Without dead ends: 20 [2018-11-18 16:16:05,366 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:16:05,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-18 16:16:05,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-18 16:16:05,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 16:16:05,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-18 16:16:05,389 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2018-11-18 16:16:05,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:16:05,389 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-18 16:16:05,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:16:05,389 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-18 16:16:05,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 16:16:05,390 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:16:05,390 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:16:05,390 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:16:05,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:16:05,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1573461901, now seen corresponding path program 1 times [2018-11-18 16:16:05,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:16:05,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:16:05,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:16:05,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:16:05,391 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:16:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:16:05,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:16:05,480 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:16:05,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 16:16:05,480 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:16:05,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 16:16:05,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:16:05,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:16:05,482 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 6 states. [2018-11-18 16:16:05,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:16:05,576 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-11-18 16:16:05,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:16:05,576 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-18 16:16:05,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:16:05,577 INFO L225 Difference]: With dead ends: 31 [2018-11-18 16:16:05,577 INFO L226 Difference]: Without dead ends: 28 [2018-11-18 16:16:05,578 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 16:16:05,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-18 16:16:05,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2018-11-18 16:16:05,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-18 16:16:05,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-11-18 16:16:05,584 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 12 [2018-11-18 16:16:05,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:16:05,584 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-11-18 16:16:05,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 16:16:05,584 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-11-18 16:16:05,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 16:16:05,585 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:16:05,585 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:16:05,585 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:16:05,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:16:05,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1075995346, now seen corresponding path program 1 times [2018-11-18 16:16:05,585 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:16:05,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:16:05,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:16:05,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:16:05,586 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:16:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:16:05,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:16:05,692 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:16:05,692 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:16:05,693 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-11-18 16:16:05,694 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [17], [19], [23], [32], [35], [37], [40], [42], [43], [44], [45], [47], [48], [49] [2018-11-18 16:16:05,715 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:16:05,716 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:16:05,804 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 16:16:05,805 INFO L272 AbstractInterpreter]: Visited 17 different actions 21 times. Never merged. Never widened. Performed 45 root evaluator evaluations with a maximum evaluation depth of 5. Performed 45 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Never found a fixpoint. Largest state had 6 variables. [2018-11-18 16:16:05,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:16:05,816 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 16:16:05,854 INFO L227 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 69.44% of their original sizes. [2018-11-18 16:16:05,854 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 16:16:05,884 INFO L415 sIntCurrentIteration]: We unified 18 AI predicates to 18 [2018-11-18 16:16:05,884 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 16:16:05,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 16:16:05,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2018-11-18 16:16:05,885 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:16:05,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 16:16:05,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 16:16:05,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-18 16:16:05,886 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 8 states. [2018-11-18 16:16:06,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:16:06,002 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-11-18 16:16:06,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:16:06,002 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-11-18 16:16:06,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:16:06,003 INFO L225 Difference]: With dead ends: 44 [2018-11-18 16:16:06,003 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 16:16:06,003 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-18 16:16:06,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 16:16:06,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-11-18 16:16:06,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 16:16:06,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2018-11-18 16:16:06,011 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 19 [2018-11-18 16:16:06,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:16:06,011 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2018-11-18 16:16:06,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 16:16:06,011 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2018-11-18 16:16:06,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 16:16:06,012 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:16:06,012 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:16:06,012 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:16:06,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:16:06,012 INFO L82 PathProgramCache]: Analyzing trace with hash 977980684, now seen corresponding path program 1 times [2018-11-18 16:16:06,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:16:06,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:16:06,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:16:06,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:16:06,013 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:16:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:16:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:16:06,043 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:16:06,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:16:06 BoogieIcfgContainer [2018-11-18 16:16:06,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:16:06,058 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:16:06,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:16:06,059 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:16:06,059 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:16:05" (3/4) ... [2018-11-18 16:16:06,060 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 16:16:06,087 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5800b139-553e-4d4d-918e-00bda2b87081/bin-2019/utaipan/witness.graphml [2018-11-18 16:16:06,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:16:06,088 INFO L168 Benchmark]: Toolchain (without parser) took 1259.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 959.2 MB in the beginning and 1.0 GB in the end (delta: -70.5 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:16:06,089 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:16:06,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.20 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:16:06,089 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.12 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:16:06,090 INFO L168 Benchmark]: Boogie Preprocessor took 11.36 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:16:06,090 INFO L168 Benchmark]: RCFGBuilder took 176.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:16:06,090 INFO L168 Benchmark]: TraceAbstraction took 866.46 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: 89.7 MB). Peak memory consumption was 89.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:16:06,091 INFO L168 Benchmark]: Witness Printer took 29.11 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:16:06,093 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.20 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 11.12 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.36 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 176.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 866.46 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: 89.7 MB). Peak memory consumption was 89.7 MB. Max. memory is 11.5 GB. * Witness Printer took 29.11 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int i=0, x=0, y=0; [L15] int n=__VERIFIER_nondet_int(); [L16] COND FALSE !(!(n>0)) [L17] i=0 VAL [i=0, n=1, x=0, y=0] [L17] COND TRUE i