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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-lit/afnp2014_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:01:34,813 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:01:34,816 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:01:34,835 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:01:34,837 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:01:34,838 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:01:34,840 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:01:34,842 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:01:34,845 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:01:34,854 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:01:34,856 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:01:34,856 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:01:34,857 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:01:34,858 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:01:34,860 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:01:34,860 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:01:34,861 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:01:34,863 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:01:34,865 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:01:34,867 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:01:34,868 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:01:34,871 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:01:34,874 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 08:01:34,874 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 08:01:34,874 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 08:01:34,876 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 08:01:34,877 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 08:01:34,878 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 08:01:34,879 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 08:01:34,882 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 08:01:34,882 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 08:01:34,883 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 08:01:34,888 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 08:01:34,918 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:01:34,918 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:01:34,919 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:01:34,919 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:01:34,920 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:01:34,920 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:01:34,921 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:01:34,921 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:01:34,921 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:01:34,921 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:01:34,922 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:01:34,922 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:01:34,922 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:01:34,923 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:01:34,923 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:01:34,923 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:01:34,924 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:01:34,924 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:01:34,924 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:01:34,924 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:01:34,925 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:01:34,926 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:01:34,926 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:01:34,926 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:01:34,926 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:01:34,926 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:34,927 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:01:34,927 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:01:34,927 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:01:34,928 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:01:34,928 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:01:34,928 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:01:34,928 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:01:34,928 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:01:34,929 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:01:34,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:01:35,006 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:01:35,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:01:35,014 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:01:35,014 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:01:35,015 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/afnp2014_true-unreach-call_true-termination.c.i [2018-09-19 08:01:35,370 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/102fcc249/8928a52c9e064cd2a42d875f95eebd66/FLAG600472bae [2018-09-19 08:01:35,549 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:01:35,550 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/afnp2014_true-unreach-call_true-termination.c.i [2018-09-19 08:01:35,555 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/102fcc249/8928a52c9e064cd2a42d875f95eebd66/FLAG600472bae [2018-09-19 08:01:35,571 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/102fcc249/8928a52c9e064cd2a42d875f95eebd66 [2018-09-19 08:01:35,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:01:35,584 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:01:35,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:35,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:01:35,593 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:01:35,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:35" (1/1) ... [2018-09-19 08:01:35,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20fcc92e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:35, skipping insertion in model container [2018-09-19 08:01:35,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:35" (1/1) ... [2018-09-19 08:01:35,609 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:01:35,786 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:35,804 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:01:35,808 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:35,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:35 WrapperNode [2018-09-19 08:01:35,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:35,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:35,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:01:35,823 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:01:35,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:35" (1/1) ... [2018-09-19 08:01:35,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:35" (1/1) ... [2018-09-19 08:01:35,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:35,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:01:35,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:01:35,847 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:01:35,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:35" (1/1) ... [2018-09-19 08:01:35,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:35" (1/1) ... [2018-09-19 08:01:35,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:35" (1/1) ... [2018-09-19 08:01:35,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:35" (1/1) ... [2018-09-19 08:01:35,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:35" (1/1) ... [2018-09-19 08:01:35,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:35" (1/1) ... [2018-09-19 08:01:35,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:35" (1/1) ... [2018-09-19 08:01:35,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:01:35,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:01:35,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:01:35,869 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:01:35,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:35" (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 [2018-09-19 08:01:35,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:01:35,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:01:35,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:01:35,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:01:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:01:35,933 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:01:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 08:01:35,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 08:01:36,237 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:01:36,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:36 BoogieIcfgContainer [2018-09-19 08:01:36,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:01:36,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:01:36,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:01:36,249 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:01:36,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:01:35" (1/3) ... [2018-09-19 08:01:36,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e78509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:36, skipping insertion in model container [2018-09-19 08:01:36,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:35" (2/3) ... [2018-09-19 08:01:36,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e78509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:36, skipping insertion in model container [2018-09-19 08:01:36,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:36" (3/3) ... [2018-09-19 08:01:36,261 INFO L112 eAbstractionObserver]: Analyzing ICFG afnp2014_true-unreach-call_true-termination.c.i [2018-09-19 08:01:36,281 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:01:36,298 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:01:36,389 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:01:36,390 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:01:36,390 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:01:36,390 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:01:36,390 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:01:36,390 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:01:36,391 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:01:36,391 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:01:36,391 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:01:36,421 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-09-19 08:01:36,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-19 08:01:36,431 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:36,432 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:36,434 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:36,439 INFO L82 PathProgramCache]: Analyzing trace with hash -2008095039, now seen corresponding path program 1 times [2018-09-19 08:01:36,441 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:36,442 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-19 08:01:36,444 INFO L202 CegarAbsIntRunner]: [0], [4], [23], [28], [31], [33], [39], [40], [41], [43] [2018-09-19 08:01:36,496 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:36,496 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:36,539 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:36,540 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-19 08:01:36,559 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:36,608 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-19 08:01:36,609 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:36,623 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:36,625 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:36,625 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 08:01:36,625 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:36,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 08:01:36,639 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 08:01:36,640 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 08:01:36,642 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-09-19 08:01:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:36,706 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2018-09-19 08:01:36,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 08:01:36,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-19 08:01:36,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:36,720 INFO L225 Difference]: With dead ends: 41 [2018-09-19 08:01:36,720 INFO L226 Difference]: Without dead ends: 19 [2018-09-19 08:01:36,723 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 [2018-09-19 08:01:36,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-19 08:01:36,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2018-09-19 08:01:36,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-19 08:01:36,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-09-19 08:01:36,759 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2018-09-19 08:01:36,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:36,760 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-09-19 08:01:36,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 08:01:36,760 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-09-19 08:01:36,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-19 08:01:36,761 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:36,761 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:36,761 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:36,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1404763780, now seen corresponding path program 1 times [2018-09-19 08:01:36,762 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:36,762 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-19 08:01:36,763 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [10], [13], [19], [28], [31], [33], [39], [40], [41], [43] [2018-09-19 08:01:36,764 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:36,765 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:36,786 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:36,787 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-19 08:01:36,796 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:36,826 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 41.67% of their original sizes. [2018-09-19 08:01:36,827 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:36,918 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:36,919 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:36,919 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 08:01:36,919 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:36,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 08:01:36,920 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 08:01:36,920 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-19 08:01:36,921 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 6 states. [2018-09-19 08:01:37,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:37,060 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2018-09-19 08:01:37,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 08:01:37,061 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-09-19 08:01:37,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:37,063 INFO L225 Difference]: With dead ends: 30 [2018-09-19 08:01:37,063 INFO L226 Difference]: Without dead ends: 18 [2018-09-19 08:01:37,065 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-19 08:01:37,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-19 08:01:37,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-09-19 08:01:37,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-19 08:01:37,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-09-19 08:01:37,071 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-09-19 08:01:37,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:37,072 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-09-19 08:01:37,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 08:01:37,072 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-09-19 08:01:37,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-19 08:01:37,073 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:37,073 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:37,073 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:37,074 INFO L82 PathProgramCache]: Analyzing trace with hash 108470830, now seen corresponding path program 1 times [2018-09-19 08:01:37,074 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:37,075 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-09-19 08:01:37,075 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [10], [13], [19], [21], [28], [31], [33], [39], [40], [41], [43] [2018-09-19 08:01:37,077 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:37,077 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:37,138 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 08:01:37,138 INFO L272 AbstractInterpreter]: Visited 14 different actions 120 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. [2018-09-19 08:01:37,157 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 08:01:37,177 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 08:01:37,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:01:37 BoogieIcfgContainer [2018-09-19 08:01:37,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:01:37,178 INFO L168 Benchmark]: Toolchain (without parser) took 1596.48 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -723.1 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:37,181 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-09-19 08:01:37,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.24 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:37,182 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.14 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. [2018-09-19 08:01:37,183 INFO L168 Benchmark]: Boogie Preprocessor took 22.05 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. [2018-09-19 08:01:37,183 INFO L168 Benchmark]: RCFGBuilder took 370.21 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:37,184 INFO L168 Benchmark]: TraceAbstraction took 937.63 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:37,190 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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. * CACSL2BoogieTranslator took 237.24 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 23.14 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 22.05 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 370.21 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 937.63 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 44.4 MB). Peak memory consumption was 44.4 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 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, 0.7s 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, 0.2s 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_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-01-37-211.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/afnp2014_true-unreach-call_true-termination.c.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-01-37-211.csv Received shutdown request...