./Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0210da8c Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i ../../../trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --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 43bf08ab7eab650af2134651dc434d79e4859447 ........................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0210da8 [2018-10-21 12:38:36,955 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-21 12:38:36,957 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-21 12:38:36,973 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-21 12:38:36,974 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-21 12:38:36,975 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-21 12:38:36,976 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-21 12:38:36,978 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-21 12:38:36,980 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-21 12:38:36,981 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-21 12:38:36,982 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-21 12:38:36,982 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-21 12:38:36,984 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-21 12:38:36,985 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-21 12:38:36,986 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-21 12:38:36,987 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-21 12:38:36,988 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-21 12:38:36,990 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-21 12:38:36,993 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-21 12:38:36,994 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-21 12:38:36,995 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-21 12:38:36,997 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-21 12:38:37,000 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-21 12:38:37,000 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-21 12:38:37,001 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-21 12:38:37,002 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-21 12:38:37,006 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-21 12:38:37,007 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-21 12:38:37,007 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-21 12:38:37,012 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-21 12:38:37,012 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-21 12:38:37,013 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-21 12:38:37,013 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-21 12:38:37,013 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-21 12:38:37,014 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-21 12:38:37,016 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-21 12:38:37,016 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-21 12:38:37,035 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-21 12:38:37,035 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-21 12:38:37,036 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-21 12:38:37,036 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-21 12:38:37,037 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-21 12:38:37,037 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-21 12:38:37,037 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-21 12:38:37,037 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-21 12:38:37,037 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-21 12:38:37,038 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-21 12:38:37,039 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-21 12:38:37,040 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-21 12:38:37,040 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-21 12:38:37,041 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-21 12:38:37,042 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-21 12:38:37,042 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-21 12:38:37,042 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-21 12:38:37,043 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-21 12:38:37,044 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-21 12:38:37,044 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-21 12:38:37,044 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-21 12:38:37,044 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-21 12:38:37,044 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-21 12:38:37,045 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-21 12:38:37,046 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-21 12:38:37,046 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-21 12:38:37,046 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-21 12:38:37,046 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-21 12:38:37,047 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-21 12:38:37,047 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-21 12:38:37,047 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-21 12:38:37,047 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-21 12:38:37,047 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-21 12:38:37,047 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-21 12:38:37,048 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 -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 43bf08ab7eab650af2134651dc434d79e4859447 [2018-10-21 12:38:37,102 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-21 12:38:37,118 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-21 12:38:37,122 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-21 12:38:37,124 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-21 12:38:37,124 INFO L276 PluginConnector]: CDTParser initialized [2018-10-21 12:38:37,125 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i [2018-10-21 12:38:37,190 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/46c7a7cbc/a2bf10e8802c42808fc2034922981f29/FLAGbb08e45fb [2018-10-21 12:38:37,594 INFO L298 CDTParser]: Found 1 translation units. [2018-10-21 12:38:37,595 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i [2018-10-21 12:38:37,602 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/46c7a7cbc/a2bf10e8802c42808fc2034922981f29/FLAGbb08e45fb [2018-10-21 12:38:37,617 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/46c7a7cbc/a2bf10e8802c42808fc2034922981f29 [2018-10-21 12:38:37,622 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-21 12:38:37,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-21 12:38:37,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-21 12:38:37,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-21 12:38:37,629 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-21 12:38:37,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 12:38:37" (1/1) ... [2018-10-21 12:38:37,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8ad241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:38:37, skipping insertion in model container [2018-10-21 12:38:37,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 12:38:37" (1/1) ... [2018-10-21 12:38:37,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-21 12:38:37,665 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-21 12:38:37,883 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-21 12:38:37,889 INFO L189 MainTranslator]: Completed pre-run [2018-10-21 12:38:37,908 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-21 12:38:37,929 INFO L193 MainTranslator]: Completed translation [2018-10-21 12:38:37,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:38:37 WrapperNode [2018-10-21 12:38:37,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-21 12:38:37,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-21 12:38:37,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-21 12:38:37,932 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-21 12:38:37,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:38:37" (1/1) ... [2018-10-21 12:38:37,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:38:37" (1/1) ... [2018-10-21 12:38:37,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-21 12:38:37,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-21 12:38:37,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-21 12:38:37,956 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-21 12:38:37,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:38:37" (1/1) ... [2018-10-21 12:38:37,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:38:37" (1/1) ... [2018-10-21 12:38:37,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:38:37" (1/1) ... [2018-10-21 12:38:37,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:38:37" (1/1) ... [2018-10-21 12:38:37,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:38:37" (1/1) ... [2018-10-21 12:38:37,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:38:37" (1/1) ... [2018-10-21 12:38:37,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:38:37" (1/1) ... [2018-10-21 12:38:37,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-21 12:38:37,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-21 12:38:37,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-21 12:38:37,981 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-21 12:38:37,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:38:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-21 12:38:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-21 12:38:38,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-21 12:38:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-21 12:38:38,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-21 12:38:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-21 12:38:38,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-21 12:38:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-21 12:38:38,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-21 12:38:38,327 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-21 12:38:38,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 12:38:38 BoogieIcfgContainer [2018-10-21 12:38:38,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-21 12:38:38,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-21 12:38:38,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-21 12:38:38,332 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-21 12:38:38,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 12:38:37" (1/3) ... [2018-10-21 12:38:38,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165e44c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 12:38:38, skipping insertion in model container [2018-10-21 12:38:38,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 12:38:37" (2/3) ... [2018-10-21 12:38:38,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165e44c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 12:38:38, skipping insertion in model container [2018-10-21 12:38:38,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 12:38:38" (3/3) ... [2018-10-21 12:38:38,336 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_true-unreach-call_true-termination.i [2018-10-21 12:38:38,347 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-21 12:38:38,356 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-21 12:38:38,374 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-21 12:38:38,418 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-21 12:38:38,419 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-21 12:38:38,419 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-21 12:38:38,419 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-21 12:38:38,419 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-21 12:38:38,420 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-21 12:38:38,420 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-21 12:38:38,420 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-21 12:38:38,420 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-21 12:38:38,445 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-10-21 12:38:38,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-21 12:38:38,461 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:38:38,463 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-21 12:38:38,465 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:38:38,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:38:38,474 INFO L82 PathProgramCache]: Analyzing trace with hash 563245249, now seen corresponding path program 1 times [2018-10-21 12:38:38,477 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:38:38,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:38:38,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:38:38,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:38:38,538 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:38:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:38:38,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:38:38,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-21 12:38:38,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-21 12:38:38,615 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-21 12:38:38,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-21 12:38:38,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-21 12:38:38,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-21 12:38:38,635 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-10-21 12:38:38,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:38:38,662 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2018-10-21 12:38:38,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-21 12:38:38,665 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-10-21 12:38:38,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:38:38,679 INFO L225 Difference]: With dead ends: 32 [2018-10-21 12:38:38,680 INFO L226 Difference]: Without dead ends: 13 [2018-10-21 12:38:38,685 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 [2018-10-21 12:38:38,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-10-21 12:38:38,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-10-21 12:38:38,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-10-21 12:38:38,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-10-21 12:38:38,725 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-10-21 12:38:38,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:38:38,726 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-10-21 12:38:38,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-21 12:38:38,727 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-10-21 12:38:38,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-21 12:38:38,727 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:38:38,728 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-21 12:38:38,728 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:38:38,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:38:38,729 INFO L82 PathProgramCache]: Analyzing trace with hash -496423, now seen corresponding path program 1 times [2018-10-21 12:38:38,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:38:38,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:38:38,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:38:38,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:38:38,732 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:38:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:38:38,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:38:38,818 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-21 12:38:38,818 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-21 12:38:38,818 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-21 12:38:38,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-21 12:38:38,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-21 12:38:38,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-21 12:38:38,821 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2018-10-21 12:38:38,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:38:38,916 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-10-21 12:38:38,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-21 12:38:38,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-21 12:38:38,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:38:38,918 INFO L225 Difference]: With dead ends: 21 [2018-10-21 12:38:38,918 INFO L226 Difference]: Without dead ends: 16 [2018-10-21 12:38:38,919 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-21 12:38:38,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-10-21 12:38:38,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-10-21 12:38:38,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-10-21 12:38:38,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-10-21 12:38:38,923 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2018-10-21 12:38:38,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:38:38,924 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-10-21 12:38:38,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-21 12:38:38,926 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-10-21 12:38:38,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-21 12:38:38,932 INFO L367 BasicCegarLoop]: Found error trace [2018-10-21 12:38:38,933 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-21 12:38:38,933 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-21 12:38:38,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:38:38,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1177044387, now seen corresponding path program 1 times [2018-10-21 12:38:38,933 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-21 12:38:38,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:38:38,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-21 12:38:38,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-21 12:38:38,938 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-21 12:38:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-21 12:38:39,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-21 12:38:39,023 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-21 12:38:39,023 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-21 12:38:39,024 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-10-21 12:38:39,027 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [13], [15], [22], [25], [27], [33], [34], [35], [37] [2018-10-21 12:38:39,078 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-21 12:38:39,078 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-21 12:38:39,323 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-21 12:38:39,325 INFO L272 AbstractInterpreter]: Visited 12 different actions 36 times. Merged at 3 different actions 18 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-10-21 12:38:39,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-21 12:38:39,371 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-21 12:38:39,447 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-10-21 12:38:39,447 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-21 12:38:39,605 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-21 12:38:39,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-21 12:38:39,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2018-10-21 12:38:39,606 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-21 12:38:39,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-21 12:38:39,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-21 12:38:39,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-21 12:38:39,608 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 7 states. [2018-10-21 12:38:39,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-21 12:38:39,794 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-10-21 12:38:39,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-21 12:38:39,794 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-10-21 12:38:39,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-21 12:38:39,795 INFO L225 Difference]: With dead ends: 15 [2018-10-21 12:38:39,796 INFO L226 Difference]: Without dead ends: 0 [2018-10-21 12:38:39,796 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-21 12:38:39,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-21 12:38:39,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-21 12:38:39,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-21 12:38:39,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-21 12:38:39,797 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-10-21 12:38:39,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-21 12:38:39,798 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-21 12:38:39,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-21 12:38:39,798 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-21 12:38:39,798 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-21 12:38:39,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-21 12:38:39,965 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 8 [2018-10-21 12:38:39,969 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-21 12:38:39,969 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-21 12:38:39,969 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-21 12:38:39,969 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-21 12:38:39,970 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-21 12:38:39,970 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-21 12:38:39,971 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 15) the Hoare annotation is: true [2018-10-21 12:38:39,971 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 15) no Hoare annotation was computed. [2018-10-21 12:38:39,971 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-10-21 12:38:39,971 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 15) no Hoare annotation was computed. [2018-10-21 12:38:39,972 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-10-21 12:38:39,972 INFO L425 ceAbstractionStarter]: For program point L12-3(line 12) no Hoare annotation was computed. [2018-10-21 12:38:39,972 INFO L421 ceAbstractionStarter]: At program point L12-4(line 12) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= 0 .cse0) (<= .cse0 2000000))) [2018-10-21 12:38:39,972 INFO L421 ceAbstractionStarter]: At program point L12-5(line 12) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= .cse0 2000000) (<= 2000000 .cse0))) [2018-10-21 12:38:39,972 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-21 12:38:39,973 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-21 12:38:39,973 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-21 12:38:39,973 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-21 12:38:39,973 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-21 12:38:39,973 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-21 12:38:39,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 12:38:39 BoogieIcfgContainer [2018-10-21 12:38:39,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-21 12:38:39,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-21 12:38:39,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-21 12:38:39,983 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-21 12:38:39,984 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 12:38:38" (3/4) ... [2018-10-21 12:38:39,988 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-21 12:38:39,994 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-21 12:38:39,994 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-21 12:38:39,995 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-21 12:38:39,999 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-21 12:38:39,999 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-21 12:38:39,999 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-21 12:38:40,041 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-21 12:38:40,041 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-21 12:38:40,042 INFO L168 Benchmark]: Toolchain (without parser) took 2419.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -120.7 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2018-10-21 12:38:40,043 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-21 12:38:40,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.98 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-21 12:38:40,045 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.68 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-21 12:38:40,045 INFO L168 Benchmark]: Boogie Preprocessor took 24.49 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-21 12:38:40,046 INFO L168 Benchmark]: RCFGBuilder took 347.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-10-21 12:38:40,047 INFO L168 Benchmark]: TraceAbstraction took 1653.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 11.5 GB. [2018-10-21 12:38:40,047 INFO L168 Benchmark]: Witness Printer took 58.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-10-21 12:38:40,052 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.98 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 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 23.68 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.49 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 347.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1653.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 11.5 GB. * Witness Printer took 58.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 <= 2 * i && 2 * i <= 2000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 38 SDtfs, 6 SDslu, 29 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.8846153846153846 AbsIntWeakeningRatio, 0.3076923076923077 AbsIntAvgWeakeningVarsNumRemoved, 0.46153846153846156 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 27 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 520 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...