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/loops/insertion_sort_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 21:03:29,451 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 21:03:29,456 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 21:03:29,469 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 21:03:29,469 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 21:03:29,470 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 21:03:29,472 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 21:03:29,474 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 21:03:29,476 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 21:03:29,477 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 21:03:29,478 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 21:03:29,478 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 21:03:29,479 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 21:03:29,480 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 21:03:29,481 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 21:03:29,482 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 21:03:29,483 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 21:03:29,485 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 21:03:29,487 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 21:03:29,489 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 21:03:29,490 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 21:03:29,492 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 21:03:29,494 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 21:03:29,495 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 21:03:29,495 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 21:03:29,496 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 21:03:29,497 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 21:03:29,498 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 21:03:29,499 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 21:03:29,500 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 21:03:29,500 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 21:03:29,501 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 21:03:29,501 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 21:03:29,502 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 21:03:29,503 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 21:03:29,504 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 21:03:29,504 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 21:03:29,532 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 21:03:29,532 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 21:03:29,533 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 21:03:29,535 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 21:03:29,536 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 21:03:29,536 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 21:03:29,536 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 21:03:29,536 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 21:03:29,536 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 21:03:29,537 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 21:03:29,537 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 21:03:29,538 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 21:03:29,538 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 21:03:29,538 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 21:03:29,538 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 21:03:29,540 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 21:03:29,540 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 21:03:29,541 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 21:03:29,541 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 21:03:29,541 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 21:03:29,541 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 21:03:29,542 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 21:03:29,543 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 21:03:29,543 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:03:29,543 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 21:03:29,543 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 21:03:29,544 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 21:03:29,544 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 21:03:29,544 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 21:03:29,544 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 21:03:29,544 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 21:03:29,545 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 21:03:29,545 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 21:03:29,617 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 21:03:29,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 21:03:29,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 21:03:29,641 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 21:03:29,642 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 21:03:29,644 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/insertion_sort_true-unreach-call_true-termination.i [2018-09-15 21:03:30,007 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f178f6b5e/79b7ed15c8fa4631b8e4b7319a005d3a/FLAGbd6bd11c1 [2018-09-15 21:03:30,211 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 21:03:30,212 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/insertion_sort_true-unreach-call_true-termination.i [2018-09-15 21:03:30,219 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f178f6b5e/79b7ed15c8fa4631b8e4b7319a005d3a/FLAGbd6bd11c1 [2018-09-15 21:03:30,240 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f178f6b5e/79b7ed15c8fa4631b8e4b7319a005d3a [2018-09-15 21:03:30,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 21:03:30,262 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 21:03:30,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:30,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 21:03:30,274 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 21:03:30,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f90d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30, skipping insertion in model container [2018-09-15 21:03:30,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,291 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 21:03:30,494 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:30,512 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 21:03:30,521 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:30,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30 WrapperNode [2018-09-15 21:03:30,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:30,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:30,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 21:03:30,536 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 21:03:30,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:30,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 21:03:30,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 21:03:30,561 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 21:03:30,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 21:03:30,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 21:03:30,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 21:03:30,585 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 21:03:30,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (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 21:03:30,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 21:03:30,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 21:03:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 21:03:30,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 21:03:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 21:03:30,653 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 21:03:30,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 21:03:30,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 21:03:31,097 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 21:03:31,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:31 BoogieIcfgContainer [2018-09-15 21:03:31,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 21:03:31,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 21:03:31,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 21:03:31,102 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 21:03:31,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:03:30" (1/3) ... [2018-09-15 21:03:31,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2026d1d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:31, skipping insertion in model container [2018-09-15 21:03:31,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (2/3) ... [2018-09-15 21:03:31,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2026d1d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:31, skipping insertion in model container [2018-09-15 21:03:31,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:31" (3/3) ... [2018-09-15 21:03:31,107 INFO L112 eAbstractionObserver]: Analyzing ICFG insertion_sort_true-unreach-call_true-termination.i [2018-09-15 21:03:31,117 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 21:03:31,126 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 21:03:31,181 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 21:03:31,181 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 21:03:31,182 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 21:03:31,182 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 21:03:31,182 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 21:03:31,182 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 21:03:31,182 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 21:03:31,182 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 21:03:31,183 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 21:03:31,202 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-09-15 21:03:31,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-15 21:03:31,209 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:31,210 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:31,212 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:31,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1423139162, now seen corresponding path program 1 times [2018-09-15 21:03:31,220 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:31,221 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-15 21:03:31,224 INFO L202 CegarAbsIntRunner]: [0], [4], [31], [33], [37], [42], [51], [54], [56], [62], [63], [64], [66] [2018-09-15 21:03:31,257 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:31,258 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:31,330 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:31,332 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-15 21:03:31,355 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:31,403 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-09-15 21:03:31,404 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:31,406 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:31,408 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:31,408 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-15 21:03:31,408 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:31,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-15 21:03:31,419 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-15 21:03:31,420 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-15 21:03:31,422 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2018-09-15 21:03:31,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:31,444 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2018-09-15 21:03:31,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-15 21:03:31,445 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-09-15 21:03:31,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:31,453 INFO L225 Difference]: With dead ends: 49 [2018-09-15 21:03:31,453 INFO L226 Difference]: Without dead ends: 22 [2018-09-15 21:03:31,456 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-15 21:03:31,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-09-15 21:03:31,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-09-15 21:03:31,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-09-15 21:03:31,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-09-15 21:03:31,492 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 13 [2018-09-15 21:03:31,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:31,493 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-09-15 21:03:31,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-15 21:03:31,493 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-09-15 21:03:31,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 21:03:31,494 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:31,494 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:31,496 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:31,496 INFO L82 PathProgramCache]: Analyzing trace with hash 682385334, now seen corresponding path program 1 times [2018-09-15 21:03:31,497 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:31,497 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 21:03:31,497 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [33], [37], [42], [51], [54], [56], [62], [63], [64], [66] [2018-09-15 21:03:31,499 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:31,499 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:31,511 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 21:03:31,536 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 21:03:31,536 INFO L272 AbstractInterpreter]: Visited 14 different actions 14 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-09-15 21:03:31,572 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 21:03:31,591 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 21:03:31,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:03:31 BoogieIcfgContainer [2018-09-15 21:03:31,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 21:03:31,592 INFO L168 Benchmark]: Toolchain (without parser) took 1336.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -749.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 21:03:31,595 INFO L168 Benchmark]: CDTParser took 0.29 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 21:03:31,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.41 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 21:03:31,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.61 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 21:03:31,597 INFO L168 Benchmark]: Boogie Preprocessor took 23.63 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 21:03:31,597 INFO L168 Benchmark]: RCFGBuilder took 512.77 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -795.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:31,599 INFO L168 Benchmark]: TraceAbstraction took 493.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:31,604 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 272.41 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 24.61 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 23.63 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 512.77 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -795.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 493.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 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] unsigned int SIZE=__VERIFIER_nondet_uint(); [L12] int i, j, k, key; [L13] int v[SIZE]; [L14] j=1 [L14] COND FALSE !(j