./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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8d54213c-96ec-4c20-90f6-518889ab48a4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8d54213c-96ec-4c20-90f6-518889ab48a4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8d54213c-96ec-4c20-90f6-518889ab48a4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8d54213c-96ec-4c20-90f6-518889ab48a4/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_8d54213c-96ec-4c20-90f6-518889ab48a4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8d54213c-96ec-4c20-90f6-518889ab48a4/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 0.1.23-1dbac8b [2018-11-10 12:47:38,409 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:47:38,410 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:47:38,418 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:47:38,418 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:47:38,419 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:47:38,420 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:47:38,421 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:47:38,422 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:47:38,422 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:47:38,423 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:47:38,423 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:47:38,424 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:47:38,425 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:47:38,425 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:47:38,426 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:47:38,426 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:47:38,427 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:47:38,429 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:47:38,430 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:47:38,430 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:47:38,431 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:47:38,433 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:47:38,433 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:47:38,433 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:47:38,434 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:47:38,434 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:47:38,435 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:47:38,436 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:47:38,436 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:47:38,436 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:47:38,437 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:47:38,437 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:47:38,437 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:47:38,438 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:47:38,438 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:47:38,438 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8d54213c-96ec-4c20-90f6-518889ab48a4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 12:47:38,448 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:47:38,448 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:47:38,449 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:47:38,449 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:47:38,449 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:47:38,449 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:47:38,449 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 12:47:38,449 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:47:38,450 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 12:47:38,450 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 12:47:38,450 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:47:38,450 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:47:38,451 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:47:38,451 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:47:38,451 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:47:38,451 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:47:38,451 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:47:38,451 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:47:38,451 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:47:38,451 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:47:38,452 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:47:38,452 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:47:38,452 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:47:38,452 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:47:38,452 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:47:38,452 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:47:38,452 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:47:38,453 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:47:38,453 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:47:38,453 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:47:38,453 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 12:47:38,453 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:47:38,453 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:47:38,453 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 12:47:38,454 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_8d54213c-96ec-4c20-90f6-518889ab48a4/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 [2018-11-10 12:47:38,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:47:38,485 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:47:38,487 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:47:38,488 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:47:38,488 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:47:38,489 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8d54213c-96ec-4c20-90f6-518889ab48a4/bin-2019/utaipan/../../sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i [2018-11-10 12:47:38,524 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8d54213c-96ec-4c20-90f6-518889ab48a4/bin-2019/utaipan/data/90721800d/e746e07440454bd59a521a16ca1fde9e/FLAG7bd87bc16 [2018-11-10 12:47:38,921 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:47:38,922 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8d54213c-96ec-4c20-90f6-518889ab48a4/sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i [2018-11-10 12:47:38,925 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8d54213c-96ec-4c20-90f6-518889ab48a4/bin-2019/utaipan/data/90721800d/e746e07440454bd59a521a16ca1fde9e/FLAG7bd87bc16 [2018-11-10 12:47:38,933 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8d54213c-96ec-4c20-90f6-518889ab48a4/bin-2019/utaipan/data/90721800d/e746e07440454bd59a521a16ca1fde9e [2018-11-10 12:47:38,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:47:38,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:47:38,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:47:38,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:47:38,939 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:47:38,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:47:38" (1/1) ... [2018-11-10 12:47:38,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:38, skipping insertion in model container [2018-11-10 12:47:38,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:47:38" (1/1) ... [2018-11-10 12:47:38,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:47:38,958 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:47:39,054 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:47:39,056 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:47:39,066 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:47:39,074 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:47:39,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:39 WrapperNode [2018-11-10 12:47:39,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:47:39,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:47:39,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:47:39,075 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:47:39,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:39" (1/1) ... [2018-11-10 12:47:39,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:39" (1/1) ... [2018-11-10 12:47:39,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:47:39,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:47:39,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:47:39,087 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:47:39,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:39" (1/1) ... [2018-11-10 12:47:39,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:39" (1/1) ... [2018-11-10 12:47:39,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:39" (1/1) ... [2018-11-10 12:47:39,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:39" (1/1) ... [2018-11-10 12:47:39,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:39" (1/1) ... [2018-11-10 12:47:39,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:39" (1/1) ... [2018-11-10 12:47:39,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:39" (1/1) ... [2018-11-10 12:47:39,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:47:39,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:47:39,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:47:39,100 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:47:39,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8d54213c-96ec-4c20-90f6-518889ab48a4/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 [2018-11-10 12:47:39,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:47:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:47:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:47:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:47:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:47:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:47:39,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 12:47:39,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 12:47:39,331 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:47:39,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:47:39 BoogieIcfgContainer [2018-11-10 12:47:39,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:47:39,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:47:39,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:47:39,335 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:47:39,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:47:38" (1/3) ... [2018-11-10 12:47:39,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b656321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:47:39, skipping insertion in model container [2018-11-10 12:47:39,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:47:39" (2/3) ... [2018-11-10 12:47:39,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b656321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:47:39, skipping insertion in model container [2018-11-10 12:47:39,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:47:39" (3/3) ... [2018-11-10 12:47:39,338 INFO L112 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1_false-unreach-call_true-termination.i [2018-11-10 12:47:39,346 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:47:39,352 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:47:39,365 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:47:39,390 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:47:39,390 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:47:39,390 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:47:39,390 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:47:39,391 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:47:39,391 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:47:39,391 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:47:39,391 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:47:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-10 12:47:39,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 12:47:39,410 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:47:39,410 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:47:39,412 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:47:39,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:47:39,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1420455248, now seen corresponding path program 1 times [2018-11-10 12:47:39,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:47:39,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:39,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:47:39,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:39,450 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:47:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:47:39,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:47:39,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:47:39,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:47:39,491 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:47:39,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 12:47:39,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 12:47:39,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 12:47:39,503 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2018-11-10 12:47:39,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:47:39,521 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2018-11-10 12:47:39,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 12:47:39,522 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-10 12:47:39,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:47:39,528 INFO L225 Difference]: With dead ends: 42 [2018-11-10 12:47:39,528 INFO L226 Difference]: Without dead ends: 20 [2018-11-10 12:47:39,530 INFO L605 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 [2018-11-10 12:47:39,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-10 12:47:39,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-10 12:47:39,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 12:47:39,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-10 12:47:39,554 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2018-11-10 12:47:39,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:47:39,554 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-10 12:47:39,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 12:47:39,554 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-10 12:47:39,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 12:47:39,555 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:47:39,555 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:47:39,555 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:47:39,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:47:39,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1573461901, now seen corresponding path program 1 times [2018-11-10 12:47:39,556 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:47:39,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:39,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:47:39,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:39,557 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:47:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:47:39,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:47:39,653 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:47:39,653 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 12:47:39,653 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:47:39,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 12:47:39,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 12:47:39,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 12:47:39,655 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 6 states. [2018-11-10 12:47:39,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:47:39,736 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-11-10 12:47:39,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 12:47:39,737 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-10 12:47:39,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:47:39,737 INFO L225 Difference]: With dead ends: 31 [2018-11-10 12:47:39,737 INFO L226 Difference]: Without dead ends: 28 [2018-11-10 12:47:39,738 INFO L605 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 [2018-11-10 12:47:39,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-10 12:47:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2018-11-10 12:47:39,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-10 12:47:39,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-11-10 12:47:39,745 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 12 [2018-11-10 12:47:39,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:47:39,745 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-11-10 12:47:39,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 12:47:39,745 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-11-10 12:47:39,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 12:47:39,746 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:47:39,746 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:47:39,746 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:47:39,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:47:39,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1075995346, now seen corresponding path program 1 times [2018-11-10 12:47:39,746 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:47:39,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:39,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:47:39,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:39,747 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:47:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:47:39,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:47:39,858 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 12:47:39,858 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 12:47:39,859 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-11-10 12:47:39,860 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [17], [19], [23], [32], [35], [37], [40], [42], [43], [44], [45], [47], [48], [49] [2018-11-10 12:47:39,897 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 12:47:39,897 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 12:47:39,994 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 12:47:39,995 INFO L272 AbstractInterpreter]: Visited 17 different actions 21 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-11-10 12:47:39,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:47:39,999 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 12:47:40,058 INFO L227 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 66.67% of their original sizes. [2018-11-10 12:47:40,058 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 12:47:40,139 INFO L415 sIntCurrentIteration]: We unified 18 AI predicates to 18 [2018-11-10 12:47:40,139 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 12:47:40,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 12:47:40,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2018-11-10 12:47:40,140 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:47:40,140 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 12:47:40,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 12:47:40,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-10 12:47:40,141 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2018-11-10 12:47:40,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:47:40,330 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-11-10 12:47:40,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 12:47:40,330 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-11-10 12:47:40,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:47:40,331 INFO L225 Difference]: With dead ends: 44 [2018-11-10 12:47:40,331 INFO L226 Difference]: Without dead ends: 42 [2018-11-10 12:47:40,331 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-10 12:47:40,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-10 12:47:40,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-11-10 12:47:40,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-10 12:47:40,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2018-11-10 12:47:40,338 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 19 [2018-11-10 12:47:40,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:47:40,339 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2018-11-10 12:47:40,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 12:47:40,339 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2018-11-10 12:47:40,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 12:47:40,340 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:47:40,340 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] [2018-11-10 12:47:40,340 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:47:40,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:47:40,340 INFO L82 PathProgramCache]: Analyzing trace with hash 977980684, now seen corresponding path program 1 times [2018-11-10 12:47:40,340 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:47:40,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:40,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:47:40,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:47:40,341 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:47:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:47:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:47:40,364 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:47:40,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:47:40 BoogieIcfgContainer [2018-11-10 12:47:40,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:47:40,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:47:40,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:47:40,377 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:47:40,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:47:39" (3/4) ... [2018-11-10 12:47:40,379 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 12:47:40,403 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8d54213c-96ec-4c20-90f6-518889ab48a4/bin-2019/utaipan/witness.graphml [2018-11-10 12:47:40,403 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:47:40,403 INFO L168 Benchmark]: Toolchain (without parser) took 1467.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 958.1 MB in the beginning and 1.0 GB in the end (delta: -63.2 MB). Peak memory consumption was 80.0 MB. Max. memory is 11.5 GB. [2018-11-10 12:47:40,404 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:47:40,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.19 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:47:40,405 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.71 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:47:40,405 INFO L168 Benchmark]: Boogie Preprocessor took 12.47 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:47:40,405 INFO L168 Benchmark]: RCFGBuilder took 231.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -188.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-10 12:47:40,406 INFO L168 Benchmark]: TraceAbstraction took 1044.56 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: 112.3 MB). Peak memory consumption was 112.3 MB. Max. memory is 11.5 GB. [2018-11-10 12:47:40,406 INFO L168 Benchmark]: Witness Printer took 26.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:47:40,408 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.19 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 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 11.71 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.47 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 231.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -188.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1044.56 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: 112.3 MB). Peak memory consumption was 112.3 MB. Max. memory is 11.5 GB. * Witness Printer took 26.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. 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