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/loops/terminator_03_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 17:19:53,276 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 17:19:53,278 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 17:19:53,291 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 17:19:53,291 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 17:19:53,292 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 17:19:53,294 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 17:19:53,296 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 17:19:53,297 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 17:19:53,298 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 17:19:53,299 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 17:19:53,300 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 17:19:53,300 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 17:19:53,301 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 17:19:53,303 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 17:19:53,304 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 17:19:53,304 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 17:19:53,306 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 17:19:53,309 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 17:19:53,310 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 17:19:53,312 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 17:19:53,313 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 17:19:53,316 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 17:19:53,316 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 17:19:53,316 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 17:19:53,317 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 17:19:53,318 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 17:19:53,319 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 17:19:53,320 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 17:19:53,321 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 17:19:53,322 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 17:19:53,322 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-15 17:19:53,325 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 [2018-09-15 17:19:53,341 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 17:19:53,342 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 17:19:53,343 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 17:19:53,343 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 17:19:53,343 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 17:19:53,343 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 17:19:53,344 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 17:19:53,344 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 17:19:53,344 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 17:19:53,344 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 17:19:53,344 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 17:19:53,345 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 17:19:53,345 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 17:19:53,346 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 17:19:53,346 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 17:19:53,346 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 17:19:53,346 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 17:19:53,346 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 17:19:53,347 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 17:19:53,347 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 17:19:53,347 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 17:19:53,347 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 17:19:53,347 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 17:19:53,348 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 17:19:53,348 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 17:19:53,348 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 17:19:53,348 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 17:19:53,348 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 17:19:53,349 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 17:19:53,349 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 17:19:53,349 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 17:19:53,349 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 17:19:53,349 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 17:19:53,349 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 17:19:53,393 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 17:19:53,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 17:19:53,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 17:19:53,414 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 17:19:53,415 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 17:19:53,417 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_03_true-unreach-call_true-termination.i [2018-09-15 17:19:53,760 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c4707da/fe22c70fa3964698a73d5d28143ba038/FLAGd984df7e5 [2018-09-15 17:19:53,938 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 17:19:53,939 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_03_true-unreach-call_true-termination.i [2018-09-15 17:19:53,946 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c4707da/fe22c70fa3964698a73d5d28143ba038/FLAGd984df7e5 [2018-09-15 17:19:53,964 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60c4707da/fe22c70fa3964698a73d5d28143ba038 [2018-09-15 17:19:53,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 17:19:53,981 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 17:19:53,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 17:19:53,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 17:19:53,994 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 17:19:53,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:19:53" (1/1) ... [2018-09-15 17:19:53,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1dc611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:53, skipping insertion in model container [2018-09-15 17:19:54,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:19:53" (1/1) ... [2018-09-15 17:19:54,013 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 17:19:54,231 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:19:54,259 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 17:19:54,266 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:19:54,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:54 WrapperNode [2018-09-15 17:19:54,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 17:19:54,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 17:19:54,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 17:19:54,286 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 17:19:54,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:54" (1/1) ... [2018-09-15 17:19:54,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:54" (1/1) ... [2018-09-15 17:19:54,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 17:19:54,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 17:19:54,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 17:19:54,313 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 17:19:54,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:54" (1/1) ... [2018-09-15 17:19:54,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:54" (1/1) ... [2018-09-15 17:19:54,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:54" (1/1) ... [2018-09-15 17:19:54,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:54" (1/1) ... [2018-09-15 17:19:54,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:54" (1/1) ... [2018-09-15 17:19:54,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:54" (1/1) ... [2018-09-15 17:19:54,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:54" (1/1) ... [2018-09-15 17:19:54,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 17:19:54,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 17:19:54,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 17:19:54,341 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 17:19:54,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:54" (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 17:19:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 17:19:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 17:19:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 17:19:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 17:19:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 17:19:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 17:19:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 17:19:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 17:19:54,777 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 17:19:54,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:19:54 BoogieIcfgContainer [2018-09-15 17:19:54,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 17:19:54,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 17:19:54,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 17:19:54,782 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 17:19:54,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 05:19:53" (1/3) ... [2018-09-15 17:19:54,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4106a98f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:19:54, skipping insertion in model container [2018-09-15 17:19:54,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:54" (2/3) ... [2018-09-15 17:19:54,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4106a98f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:19:54, skipping insertion in model container [2018-09-15 17:19:54,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:19:54" (3/3) ... [2018-09-15 17:19:54,786 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_03_true-unreach-call_true-termination.i [2018-09-15 17:19:54,809 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 17:19:54,834 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 17:19:54,924 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 17:19:54,927 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 17:19:54,928 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 17:19:54,928 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 17:19:54,928 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 17:19:54,928 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 17:19:54,928 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 17:19:54,929 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 17:19:54,929 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 17:19:54,968 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-09-15 17:19:54,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-15 17:19:54,977 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:19:54,978 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:19:54,979 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:19:54,985 INFO L82 PathProgramCache]: Analyzing trace with hash 439143249, now seen corresponding path program 1 times [2018-09-15 17:19:54,987 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:19:54,989 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-15 17:19:54,990 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [26], [31], [34], [36], [42], [43], [44], [46] [2018-09-15 17:19:55,044 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:19:55,044 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:19:55,102 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:19:55,104 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-15 17:19:55,128 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:19:55,189 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 17:19:55,190 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:19:55,332 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:19:55,337 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:19:55,337 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-15 17:19:55,337 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:19:55,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-15 17:19:55,350 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-15 17:19:55,351 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-15 17:19:55,354 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2018-09-15 17:19:55,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:19:55,678 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2018-09-15 17:19:55,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-15 17:19:55,680 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-09-15 17:19:55,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:19:55,691 INFO L225 Difference]: With dead ends: 49 [2018-09-15 17:19:55,691 INFO L226 Difference]: Without dead ends: 17 [2018-09-15 17:19:55,696 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-15 17:19:55,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-15 17:19:55,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2018-09-15 17:19:55,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-15 17:19:55,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-09-15 17:19:55,741 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-09-15 17:19:55,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:19:55,742 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-09-15 17:19:55,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-15 17:19:55,742 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-09-15 17:19:55,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-15 17:19:55,743 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:19:55,743 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:19:55,744 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:19:55,744 INFO L82 PathProgramCache]: Analyzing trace with hash -216018202, now seen corresponding path program 1 times [2018-09-15 17:19:55,744 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:19:55,745 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-15 17:19:55,745 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [15], [19], [31], [34], [36], [42], [43], [44], [46] [2018-09-15 17:19:55,747 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:19:55,747 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:19:55,755 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:19:55,755 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 17:19:55,778 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:19:55,806 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 17:19:55,807 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:19:56,047 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:19:56,048 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:19:56,048 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-15 17:19:56,048 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:19:56,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-15 17:19:56,049 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-15 17:19:56,050 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-15 17:19:56,050 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 8 states. [2018-09-15 17:19:56,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:19:56,284 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-09-15 17:19:56,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-15 17:19:56,285 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-09-15 17:19:56,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:19:56,285 INFO L225 Difference]: With dead ends: 14 [2018-09-15 17:19:56,285 INFO L226 Difference]: Without dead ends: 0 [2018-09-15 17:19:56,287 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-15 17:19:56,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-15 17:19:56,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-15 17:19:56,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-15 17:19:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-15 17:19:56,292 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-09-15 17:19:56,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:19:56,293 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-15 17:19:56,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-15 17:19:56,293 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-15 17:19:56,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-15 17:19:56,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-15 17:19:56,590 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 24 [2018-09-15 17:19:56,592 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-15 17:19:56,593 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-15 17:19:56,593 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-15 17:19:56,593 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-15 17:19:56,593 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-15 17:19:56,594 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-15 17:19:56,594 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 11 22) the Hoare annotation is: true [2018-09-15 17:19:56,594 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 11 22) no Hoare annotation was computed. [2018-09-15 17:19:56,594 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-15 17:19:56,594 INFO L426 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-09-15 17:19:56,595 INFO L426 ceAbstractionStarter]: For program point L16-1(lines 16 18) no Hoare annotation was computed. [2018-09-15 17:19:56,595 INFO L426 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-09-15 17:19:56,595 INFO L422 ceAbstractionStarter]: At program point L15-1(lines 15 19) the Hoare annotation is: (let ((.cse1 (* 2 main_~x~0))) (let ((.cse0 (* 2 main_~y~0)) (.cse2 (<= .cse1 4294967294))) (or (and (<= .cse0 0) (<= 0 (+ .cse1 4294967296)) (<= 0 (+ .cse0 4294967296)) .cse2) (and (<= .cse0 2000000) (<= main_~x~0 (+ main_~y~0 2147483646)) .cse2 (<= 200 .cse1))))) [2018-09-15 17:19:56,596 INFO L422 ceAbstractionStarter]: At program point L16-3(lines 16 18) the Hoare annotation is: (let ((.cse1 (* 2 main_~y~0)) (.cse0 (* 2 main_~x~0))) (and (<= 0 (+ .cse0 4294967296)) (<= .cse1 2000000) (<= 2 .cse1) (<= .cse0 4294967294))) [2018-09-15 17:19:56,596 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 11 22) no Hoare annotation was computed. [2018-09-15 17:19:56,596 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-15 17:19:56,596 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-15 17:19:56,597 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-15 17:19:56,597 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-15 17:19:56,597 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-15 17:19:56,597 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-15 17:19:56,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 05:19:56 BoogieIcfgContainer [2018-09-15 17:19:56,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 17:19:56,609 INFO L168 Benchmark]: Toolchain (without parser) took 2630.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -728.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2018-09-15 17:19:56,611 INFO L168 Benchmark]: CDTParser took 0.20 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 17:19:56,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.22 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 17:19:56,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.12 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 17:19:56,614 INFO L168 Benchmark]: Boogie Preprocessor took 27.70 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 17:19:56,614 INFO L168 Benchmark]: RCFGBuilder took 437.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -803.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-15 17:19:56,615 INFO L168 Benchmark]: TraceAbstraction took 1829.43 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 7.1 GB. [2018-09-15 17:19:56,622 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 301.22 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 26.12 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 27.70 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 437.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -803.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1829.43 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: ((0 <= 2 * x + 4294967296 && 2 * y <= 2000000) && 2 <= 2 * y) && 2 * x <= 4294967294 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 30 SDslu, 78 SDs, 0 SdLazy, 57 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s 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, 0.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9318181818181818 AbsIntWeakeningRatio, 0.36363636363636365 AbsIntAvgWeakeningVarsNumRemoved, 0.5454545454545454 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 75 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 62 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/terminator_03_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_17-19-56-645.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/terminator_03_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_17-19-56-645.csv Received shutdown request...