java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/down_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 21:03:51,641 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 21:03:51,644 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 21:03:51,661 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 21:03:51,662 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 21:03:51,663 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 21:03:51,664 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 21:03:51,666 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 21:03:51,667 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 21:03:51,668 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 21:03:51,669 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 21:03:51,669 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 21:03:51,670 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 21:03:51,671 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 21:03:51,673 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 21:03:51,673 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 21:03:51,674 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 21:03:51,676 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 21:03:51,678 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 21:03:51,680 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 21:03:51,681 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 21:03:51,682 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 21:03:51,685 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 21:03:51,685 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 21:03:51,685 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 21:03:51,686 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 21:03:51,687 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 21:03:51,688 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 21:03:51,689 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 21:03:51,690 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 21:03:51,690 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 21:03:51,691 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 21:03:51,691 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 21:03:51,691 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 21:03:51,693 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 21:03:51,693 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 21:03:51,694 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-15 21:03:51,718 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 21:03:51,719 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 21:03:51,720 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 21:03:51,720 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 21:03:51,720 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 21:03:51,721 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 21:03:51,721 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 21:03:51,721 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 21:03:51,721 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 21:03:51,722 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 21:03:51,722 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 21:03:51,723 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 21:03:51,723 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 21:03:51,723 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 21:03:51,724 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 21:03:51,725 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 21:03:51,725 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 21:03:51,725 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 21:03:51,725 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 21:03:51,725 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 21:03:51,726 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 21:03:51,726 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 21:03:51,726 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 21:03:51,726 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:03:51,728 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 21:03:51,728 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 21:03:51,728 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 21:03:51,728 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 21:03:51,729 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 21:03:51,729 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 21:03:51,729 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 21:03:51,729 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 21:03:51,729 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 21:03:51,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 21:03:51,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 21:03:51,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 21:03:51,800 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 21:03:51,800 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 21:03:51,801 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/down_true-unreach-call_true-termination.i [2018-09-15 21:03:52,164 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caa195bdc/7ce79a32466248c586adb01a1ece1003/FLAGf0e5d6aaa [2018-09-15 21:03:52,330 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 21:03:52,331 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/down_true-unreach-call_true-termination.i [2018-09-15 21:03:52,336 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caa195bdc/7ce79a32466248c586adb01a1ece1003/FLAGf0e5d6aaa [2018-09-15 21:03:52,351 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caa195bdc/7ce79a32466248c586adb01a1ece1003 [2018-09-15 21:03:52,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 21:03:52,368 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 21:03:52,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:52,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 21:03:52,376 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 21:03:52,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:52" (1/1) ... [2018-09-15 21:03:52,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb8563f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:52, skipping insertion in model container [2018-09-15 21:03:52,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:52" (1/1) ... [2018-09-15 21:03:52,391 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 21:03:52,571 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:52,588 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 21:03:52,593 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:52,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:52 WrapperNode [2018-09-15 21:03:52,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:52,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:52,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 21:03:52,608 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 21:03:52,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:52" (1/1) ... [2018-09-15 21:03:52,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:52" (1/1) ... [2018-09-15 21:03:52,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:52,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 21:03:52,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 21:03:52,632 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 21:03:52,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:52" (1/1) ... [2018-09-15 21:03:52,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:52" (1/1) ... [2018-09-15 21:03:52,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:52" (1/1) ... [2018-09-15 21:03:52,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:52" (1/1) ... [2018-09-15 21:03:52,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:52" (1/1) ... [2018-09-15 21:03:52,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:52" (1/1) ... [2018-09-15 21:03:52,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:52" (1/1) ... [2018-09-15 21:03:52,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 21:03:52,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 21:03:52,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 21:03:52,658 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 21:03:52,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:03:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 21:03:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 21:03:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 21:03:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 21:03:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 21:03:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 21:03:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 21:03:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 21:03:53,242 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 21:03:53,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:53 BoogieIcfgContainer [2018-09-15 21:03:53,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 21:03:53,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 21:03:53,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 21:03:53,248 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 21:03:53,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:03:52" (1/3) ... [2018-09-15 21:03:53,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9fc88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:53, skipping insertion in model container [2018-09-15 21:03:53,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:52" (2/3) ... [2018-09-15 21:03:53,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9fc88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:53, skipping insertion in model container [2018-09-15 21:03:53,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:53" (3/3) ... [2018-09-15 21:03:53,252 INFO L112 eAbstractionObserver]: Analyzing ICFG down_true-unreach-call_true-termination.i [2018-09-15 21:03:53,262 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 21:03:53,271 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 21:03:53,336 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 21:03:53,337 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 21:03:53,337 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 21:03:53,337 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 21:03:53,337 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 21:03:53,338 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 21:03:53,338 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 21:03:53,338 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 21:03:53,338 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 21:03:53,357 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-09-15 21:03:53,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-15 21:03:53,366 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:53,367 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:53,368 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:53,374 INFO L82 PathProgramCache]: Analyzing trace with hash 123585964, now seen corresponding path program 1 times [2018-09-15 21:03:53,377 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:53,378 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-15 21:03:53,380 INFO L202 CegarAbsIntRunner]: [0], [4], [16], [18], [22], [28], [36], [39], [41], [47], [48], [49], [51] [2018-09-15 21:03:53,426 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:53,426 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:53,506 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:53,507 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 5 variables. [2018-09-15 21:03:53,546 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:53,595 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 33.33% of their original sizes. [2018-09-15 21:03:53,595 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:53,606 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:53,608 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:53,608 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 21:03:53,609 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:53,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 21:03:53,619 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 21:03:53,619 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:53,622 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2018-09-15 21:03:53,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:53,708 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2018-09-15 21:03:53,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 21:03:53,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-09-15 21:03:53,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:53,719 INFO L225 Difference]: With dead ends: 49 [2018-09-15 21:03:53,719 INFO L226 Difference]: Without dead ends: 25 [2018-09-15 21:03:53,722 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:53,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-09-15 21:03:53,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2018-09-15 21:03:53,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-15 21:03:53,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-09-15 21:03:53,763 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-09-15 21:03:53,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:53,764 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-09-15 21:03:53,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 21:03:53,764 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-09-15 21:03:53,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 21:03:53,765 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:53,766 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:53,766 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:53,766 INFO L82 PathProgramCache]: Analyzing trace with hash -203615370, now seen corresponding path program 1 times [2018-09-15 21:03:53,767 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:53,767 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 21:03:53,767 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [18], [22], [28], [36], [39], [41], [47], [48], [49], [51] [2018-09-15 21:03:53,769 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:53,769 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:53,787 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:53,787 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 5 variables. [2018-09-15 21:03:53,815 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:53,839 INFO L232 lantSequenceWeakener]: Weakened 3 states. On average, predicates are now at 44.44% of their original sizes. [2018-09-15 21:03:53,839 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:53,902 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:53,903 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:53,903 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-15 21:03:53,903 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:53,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-15 21:03:53,904 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-15 21:03:53,904 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-15 21:03:53,905 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 5 states. [2018-09-15 21:03:54,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:54,007 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2018-09-15 21:03:54,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-15 21:03:54,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-09-15 21:03:54,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:54,008 INFO L225 Difference]: With dead ends: 33 [2018-09-15 21:03:54,008 INFO L226 Difference]: Without dead ends: 20 [2018-09-15 21:03:54,010 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-15 21:03:54,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-09-15 21:03:54,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-09-15 21:03:54,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-09-15 21:03:54,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-09-15 21:03:54,015 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14 [2018-09-15 21:03:54,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:54,016 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-09-15 21:03:54,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-15 21:03:54,016 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-09-15 21:03:54,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-15 21:03:54,017 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:54,017 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:54,017 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:54,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1025157488, now seen corresponding path program 1 times [2018-09-15 21:03:54,018 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:54,018 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-15 21:03:54,018 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [18], [22], [28], [36], [39], [41], [47], [48], [49], [51] [2018-09-15 21:03:54,020 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:54,020 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:54,082 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 21:03:54,082 INFO L272 AbstractInterpreter]: Visited 15 different actions 65 times. Merged at 6 different actions 32 times. Widened at 2 different actions 3 times. Found 2 fixpoints after 2 different actions. Largest state had 7 variables. [2018-09-15 21:03:54,123 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 21:03:54,139 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 21:03:54,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:03:54 BoogieIcfgContainer [2018-09-15 21:03:54,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 21:03:54,140 INFO L168 Benchmark]: Toolchain (without parser) took 1774.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 729.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -720.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:54,143 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 21:03:54,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:54,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 21:03:54,145 INFO L168 Benchmark]: Boogie Preprocessor took 26.08 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 21:03:54,145 INFO L168 Benchmark]: RCFGBuilder took 585.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 729.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -777.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:54,146 INFO L168 Benchmark]: TraceAbstraction took 895.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:54,151 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 237.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 24.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.08 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 585.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 729.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -777.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 895.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L11] int n; [L12] int k = 0; [L13] int i = 0; [L14] n = __VERIFIER_nondet_int() [L15] COND TRUE i < n [L16] i++ [L16] i++ [L17] k++ [L17] k++ [L15] COND FALSE !(i < n) [L19] int j = n; [L20] COND TRUE j > 0 [L21] CALL __VERIFIER_assert(k > 0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. UNKNOWN Result, 0.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 13 SDslu, 60 SDs, 0 SdLazy, 26 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 3 AbstIntIterations, 2 AbstIntStrong, 0.9866666666666667 AbsIntWeakeningRatio, 0.48 AbsIntAvgWeakeningVarsNumRemoved, 0.32 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/down_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_21-03-54-164.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/down_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_21-03-54-164.csv Received shutdown request...