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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-lit/afnp2014_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 09:23:17,523 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 09:23:17,525 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 09:23:17,538 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 09:23:17,539 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 09:23:17,540 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 09:23:17,541 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 09:23:17,543 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 09:23:17,545 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 09:23:17,546 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 09:23:17,547 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 09:23:17,547 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 09:23:17,548 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 09:23:17,549 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 09:23:17,554 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 09:23:17,555 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 09:23:17,556 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 09:23:17,558 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 09:23:17,560 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 09:23:17,562 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 09:23:17,566 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 09:23:17,568 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 09:23:17,571 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 09:23:17,571 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 09:23:17,571 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 09:23:17,572 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 09:23:17,574 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 09:23:17,574 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 09:23:17,575 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 09:23:17,576 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 09:23:17,576 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 09:23:17,577 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 09:23:17,577 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 09:23:17,579 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 09:23:17,580 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 09:23:17,582 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 09:23:17,583 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-15 09:23:17,613 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 09:23:17,613 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 09:23:17,615 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 09:23:17,615 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 09:23:17,615 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 09:23:17,615 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 09:23:17,618 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 09:23:17,618 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 09:23:17,618 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 09:23:17,618 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 09:23:17,619 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 09:23:17,620 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 09:23:17,620 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 09:23:17,620 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 09:23:17,620 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 09:23:17,621 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 09:23:17,622 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 09:23:17,622 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 09:23:17,622 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 09:23:17,622 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 09:23:17,623 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 09:23:17,623 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 09:23:17,623 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 09:23:17,623 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 09:23:17,624 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 09:23:17,625 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 09:23:17,625 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 09:23:17,625 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 09:23:17,625 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 09:23:17,626 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 09:23:17,626 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 09:23:17,626 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 09:23:17,626 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 09:23:17,693 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 09:23:17,706 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 09:23:17,710 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 09:23:17,712 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 09:23:17,712 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 09:23:17,713 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/afnp2014_true-unreach-call_true-termination.c.i [2018-09-15 09:23:18,086 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f96f6a5cd/19e1dad45b774b23a55d7358d9b4b4ee/FLAGa66087850 [2018-09-15 09:23:18,246 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 09:23:18,247 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/afnp2014_true-unreach-call_true-termination.c.i [2018-09-15 09:23:18,253 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f96f6a5cd/19e1dad45b774b23a55d7358d9b4b4ee/FLAGa66087850 [2018-09-15 09:23:18,278 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f96f6a5cd/19e1dad45b774b23a55d7358d9b4b4ee [2018-09-15 09:23:18,292 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 09:23:18,298 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 09:23:18,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 09:23:18,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 09:23:18,309 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 09:23:18,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:23:18" (1/1) ... [2018-09-15 09:23:18,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a7336e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:18, skipping insertion in model container [2018-09-15 09:23:18,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:23:18" (1/1) ... [2018-09-15 09:23:18,327 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 09:23:18,530 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:23:18,552 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 09:23:18,558 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:23:18,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:18 WrapperNode [2018-09-15 09:23:18,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 09:23:18,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 09:23:18,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 09:23:18,578 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 09:23:18,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:18" (1/1) ... [2018-09-15 09:23:18,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:18" (1/1) ... [2018-09-15 09:23:18,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 09:23:18,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 09:23:18,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 09:23:18,605 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 09:23:18,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:18" (1/1) ... [2018-09-15 09:23:18,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:18" (1/1) ... [2018-09-15 09:23:18,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:18" (1/1) ... [2018-09-15 09:23:18,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:18" (1/1) ... [2018-09-15 09:23:18,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:18" (1/1) ... [2018-09-15 09:23:18,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:18" (1/1) ... [2018-09-15 09:23:18,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:18" (1/1) ... [2018-09-15 09:23:18,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 09:23:18,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 09:23:18,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 09:23:18,633 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 09:23:18,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:18" (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 09:23:18,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 09:23:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 09:23:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 09:23:18,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 09:23:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 09:23:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 09:23:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 09:23:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 09:23:19,108 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 09:23:19,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:23:19 BoogieIcfgContainer [2018-09-15 09:23:19,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 09:23:19,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 09:23:19,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 09:23:19,125 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 09:23:19,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:23:18" (1/3) ... [2018-09-15 09:23:19,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4bea13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:23:19, skipping insertion in model container [2018-09-15 09:23:19,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:18" (2/3) ... [2018-09-15 09:23:19,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4bea13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:23:19, skipping insertion in model container [2018-09-15 09:23:19,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:23:19" (3/3) ... [2018-09-15 09:23:19,134 INFO L112 eAbstractionObserver]: Analyzing ICFG afnp2014_true-unreach-call_true-termination.c.i [2018-09-15 09:23:19,154 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 09:23:19,164 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 09:23:19,239 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 09:23:19,240 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 09:23:19,240 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 09:23:19,241 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 09:23:19,241 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 09:23:19,241 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 09:23:19,241 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 09:23:19,241 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 09:23:19,241 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 09:23:19,271 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-09-15 09:23:19,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-15 09:23:19,278 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:19,280 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:23:19,281 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:19,289 INFO L82 PathProgramCache]: Analyzing trace with hash -2008095039, now seen corresponding path program 1 times [2018-09-15 09:23:19,292 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:19,293 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-15 09:23:19,295 INFO L202 CegarAbsIntRunner]: [0], [4], [23], [28], [31], [33], [39], [40], [41], [43] [2018-09-15 09:23:19,360 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:19,361 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:19,433 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:19,435 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-15 09:23:19,455 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:19,511 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-15 09:23:19,512 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:19,538 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:19,540 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:19,540 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 09:23:19,540 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:19,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 09:23:19,551 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 09:23:19,551 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 09:23:19,554 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-09-15 09:23:19,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:19,625 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2018-09-15 09:23:19,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 09:23:19,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-15 09:23:19,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:19,636 INFO L225 Difference]: With dead ends: 41 [2018-09-15 09:23:19,636 INFO L226 Difference]: Without dead ends: 19 [2018-09-15 09:23:19,639 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 9 GetRequests, 8 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 09:23:19,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-15 09:23:19,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2018-09-15 09:23:19,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-15 09:23:19,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-09-15 09:23:19,682 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2018-09-15 09:23:19,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:19,683 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-09-15 09:23:19,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 09:23:19,683 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-09-15 09:23:19,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-15 09:23:19,684 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:19,684 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:23:19,685 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:19,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1404763780, now seen corresponding path program 1 times [2018-09-15 09:23:19,685 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:19,686 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-15 09:23:19,686 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [10], [13], [19], [28], [31], [33], [39], [40], [41], [43] [2018-09-15 09:23:19,688 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:19,688 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:19,731 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:19,732 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-15 09:23:19,737 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:19,782 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 41.67% of their original sizes. [2018-09-15 09:23:19,783 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:19,885 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:19,886 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:19,886 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 09:23:19,886 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:19,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 09:23:19,887 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 09:23:19,887 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-15 09:23:19,888 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 6 states. [2018-09-15 09:23:20,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:20,048 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2018-09-15 09:23:20,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 09:23:20,048 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-09-15 09:23:20,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:20,049 INFO L225 Difference]: With dead ends: 30 [2018-09-15 09:23:20,050 INFO L226 Difference]: Without dead ends: 18 [2018-09-15 09:23:20,051 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-15 09:23:20,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-15 09:23:20,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-09-15 09:23:20,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-15 09:23:20,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-09-15 09:23:20,058 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-09-15 09:23:20,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:20,058 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-09-15 09:23:20,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 09:23:20,059 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-09-15 09:23:20,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-15 09:23:20,059 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:20,060 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:23:20,060 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:20,060 INFO L82 PathProgramCache]: Analyzing trace with hash 108470830, now seen corresponding path program 1 times [2018-09-15 09:23:20,060 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:20,061 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-09-15 09:23:20,061 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [10], [13], [19], [21], [28], [31], [33], [39], [40], [41], [43] [2018-09-15 09:23:20,063 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:20,063 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:20,186 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 09:23:20,187 INFO L272 AbstractInterpreter]: Visited 14 different actions 119 times. Merged at 5 different actions 60 times. Widened at 1 different actions 8 times. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2018-09-15 09:23:20,198 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 09:23:20,216 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 09:23:20,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:23:20 BoogieIcfgContainer [2018-09-15 09:23:20,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 09:23:20,217 INFO L168 Benchmark]: Toolchain (without parser) took 1924.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 779.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -775.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:20,220 INFO L168 Benchmark]: CDTParser took 0.22 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 09:23:20,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.88 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 09:23:20,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.88 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 09:23:20,222 INFO L168 Benchmark]: Boogie Preprocessor took 27.62 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 09:23:20,222 INFO L168 Benchmark]: RCFGBuilder took 476.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 779.6 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -835.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:20,223 INFO L168 Benchmark]: TraceAbstraction took 1106.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:20,229 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 278.88 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 25.88 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 27.62 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 476.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 779.6 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -835.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1106.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 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 x = 1; [L12] int y = 0; [L13] y < 1000 && __VERIFIER_nondet_int() [L13] COND TRUE y < 1000 && __VERIFIER_nondet_int() [L13] y < 1000 && __VERIFIER_nondet_int() [L13] COND TRUE y < 1000 && __VERIFIER_nondet_int() [L14] x = x + y [L15] y = y + 1 [L13] y < 1000 && __VERIFIER_nondet_int() [L13] COND TRUE y < 1000 && __VERIFIER_nondet_int() [L13] y < 1000 && __VERIFIER_nondet_int() [L13] COND FALSE !(y < 1000 && __VERIFIER_nondet_int()) [L17] CALL __VERIFIER_assert(x >= y) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. UNKNOWN Result, 0.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 9 SDslu, 51 SDs, 0 SdLazy, 24 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 0.9285714285714286 AbsIntWeakeningRatio, 0.47619047619047616 AbsIntAvgWeakeningVarsNumRemoved, 0.7619047619047619 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 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/afnp2014_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_09-23-20-241.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/afnp2014_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_09-23-20-241.csv Received shutdown request...