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/for_infinite_loop_1_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:01:02,722 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:01:02,726 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:01:02,742 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:01:02,742 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:01:02,744 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:01:02,746 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:01:02,748 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:01:02,751 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:01:02,752 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:01:02,754 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:01:02,754 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:01:02,761 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:01:02,762 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:01:02,766 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:01:02,767 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:01:02,771 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:01:02,773 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:01:02,776 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:01:02,780 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:01:02,784 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:01:02,785 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:01:02,791 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 08:01:02,791 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 08:01:02,791 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 08:01:02,792 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 08:01:02,794 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 08:01:02,795 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 08:01:02,795 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 08:01:02,797 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 08:01:02,797 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 08:01:02,799 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 08:01:02,803 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 08:01:02,827 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:01:02,827 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:01:02,829 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:01:02,829 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:01:02,829 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:01:02,829 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:01:02,830 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:01:02,830 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:01:02,830 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:01:02,830 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:01:02,830 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:01:02,831 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:01:02,831 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:01:02,834 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:01:02,834 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:01:02,834 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:01:02,835 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:01:02,835 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:01:02,837 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:01:02,837 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:01:02,837 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:01:02,837 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:01:02,838 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:01:02,838 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:01:02,838 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:01:02,838 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:02,838 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:01:02,839 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:01:02,839 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:01:02,839 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:01:02,839 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:01:02,839 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:01:02,840 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:01:02,840 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:01:02,840 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:01:02,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:01:02,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:01:02,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:01:02,940 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:01:02,941 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:01:02,942 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/for_infinite_loop_1_true-unreach-call_false-termination.i [2018-09-19 08:01:03,297 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/500f66b4d/99044579087e439082636f21f6c68ce5/FLAGf57e12267 [2018-09-19 08:01:03,468 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:01:03,469 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/for_infinite_loop_1_true-unreach-call_false-termination.i [2018-09-19 08:01:03,481 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/500f66b4d/99044579087e439082636f21f6c68ce5/FLAGf57e12267 [2018-09-19 08:01:03,509 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/500f66b4d/99044579087e439082636f21f6c68ce5 [2018-09-19 08:01:03,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:01:03,531 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:01:03,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:03,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:01:03,543 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:01:03,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:03" (1/1) ... [2018-09-19 08:01:03,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627e0d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:03, skipping insertion in model container [2018-09-19 08:01:03,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:03" (1/1) ... [2018-09-19 08:01:03,563 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:01:03,813 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:03,836 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:01:03,841 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:03,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:03 WrapperNode [2018-09-19 08:01:03,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:03,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:03,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:01:03,860 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:01:03,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:03" (1/1) ... [2018-09-19 08:01:03,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:03" (1/1) ... [2018-09-19 08:01:03,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:03,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:01:03,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:01:03,887 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:01:03,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:03" (1/1) ... [2018-09-19 08:01:03,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:03" (1/1) ... [2018-09-19 08:01:03,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:03" (1/1) ... [2018-09-19 08:01:03,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:03" (1/1) ... [2018-09-19 08:01:03,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:03" (1/1) ... [2018-09-19 08:01:03,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:03" (1/1) ... [2018-09-19 08:01:03,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:03" (1/1) ... [2018-09-19 08:01:03,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:01:03,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:01:03,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:01:03,916 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:01:03,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:03" (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 08:01:03,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:01:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:01:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:01:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:01:03,997 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:01:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:01:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 08:01:03,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 08:01:04,279 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:01:04,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:04 BoogieIcfgContainer [2018-09-19 08:01:04,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:01:04,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:01:04,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:01:04,287 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:01:04,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:01:03" (1/3) ... [2018-09-19 08:01:04,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd17d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:04, skipping insertion in model container [2018-09-19 08:01:04,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:03" (2/3) ... [2018-09-19 08:01:04,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd17d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:04, skipping insertion in model container [2018-09-19 08:01:04,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:04" (3/3) ... [2018-09-19 08:01:04,292 INFO L112 eAbstractionObserver]: Analyzing ICFG for_infinite_loop_1_true-unreach-call_false-termination.i [2018-09-19 08:01:04,301 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:01:04,309 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:01:04,358 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:01:04,359 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:01:04,360 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:01:04,360 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:01:04,360 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:01:04,360 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:01:04,360 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:01:04,360 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:01:04,361 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:01:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-09-19 08:01:04,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-19 08:01:04,395 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:04,396 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:04,397 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:04,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1153397670, now seen corresponding path program 1 times [2018-09-19 08:01:04,408 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:04,409 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-19 08:01:04,412 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [22], [26], [29], [31], [37], [38], [39], [43] [2018-09-19 08:01:04,461 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:04,462 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:04,511 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:04,512 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 5 variables. [2018-09-19 08:01:04,530 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:04,598 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 62.5% of their original sizes. [2018-09-19 08:01:04,599 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:04,638 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:04,639 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:04,639 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-19 08:01:04,639 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:04,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-19 08:01:04,649 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-19 08:01:04,650 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-19 08:01:04,652 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2018-09-19 08:01:04,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:04,753 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2018-09-19 08:01:04,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 08:01:04,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-09-19 08:01:04,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:04,785 INFO L225 Difference]: With dead ends: 35 [2018-09-19 08:01:04,786 INFO L226 Difference]: Without dead ends: 16 [2018-09-19 08:01:04,792 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-19 08:01:04,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-19 08:01:04,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-09-19 08:01:04,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-09-19 08:01:04,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-09-19 08:01:04,852 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2018-09-19 08:01:04,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:04,853 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-09-19 08:01:04,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-19 08:01:04,853 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-09-19 08:01:04,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-19 08:01:04,861 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:04,862 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:04,867 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:04,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1085730297, now seen corresponding path program 1 times [2018-09-19 08:01:04,868 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:04,868 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-19 08:01:04,868 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [17], [26], [29], [31], [37], [38], [39], [41] [2018-09-19 08:01:04,870 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:04,870 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:04,888 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:04,889 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 5 variables. [2018-09-19 08:01:04,901 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:04,927 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 65% of their original sizes. [2018-09-19 08:01:04,928 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:05,012 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:05,013 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:05,013 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 08:01:05,013 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:05,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 08:01:05,014 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 08:01:05,014 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-19 08:01:05,015 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2018-09-19 08:01:05,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:05,120 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-09-19 08:01:05,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-19 08:01:05,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-09-19 08:01:05,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:05,121 INFO L225 Difference]: With dead ends: 16 [2018-09-19 08:01:05,121 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 08:01:05,123 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-19 08:01:05,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 08:01:05,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 08:01:05,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 08:01:05,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 08:01:05,124 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-09-19 08:01:05,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:05,124 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 08:01:05,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 08:01:05,125 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 08:01:05,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 08:01:05,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 08:01:05,482 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 14 [2018-09-19 08:01:05,732 WARN L178 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 14 [2018-09-19 08:01:05,761 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-19 08:01:05,761 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 08:01:05,761 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 08:01:05,762 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 08:01:05,762 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 08:01:05,762 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 08:01:05,762 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2018-09-19 08:01:05,762 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2018-09-19 08:01:05,763 INFO L422 ceAbstractionStarter]: At program point L17(line 17) the Hoare annotation is: (let ((.cse1 (* 2 main_~n~0)) (.cse0 (* 2 main_~x~0))) (and (<= .cse0 0) (<= .cse1 4294967294) (<= 0 (+ .cse1 4294967296)) (<= 0 .cse0))) [2018-09-19 08:01:05,763 INFO L426 ceAbstractionStarter]: For program point L17-1(lines 15 18) no Hoare annotation was computed. [2018-09-19 08:01:05,763 INFO L426 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-09-19 08:01:05,763 INFO L426 ceAbstractionStarter]: For program point L15-1(lines 15 18) no Hoare annotation was computed. [2018-09-19 08:01:05,763 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2018-09-19 08:01:05,763 INFO L422 ceAbstractionStarter]: At program point L15-3(lines 15 18) the Hoare annotation is: (let ((.cse1 (* 2 main_~n~0)) (.cse0 (* 2 main_~x~0))) (and (<= .cse0 0) (<= .cse1 4294967294) (<= 0 (+ .cse1 4294967296)) (<= 0 .cse0))) [2018-09-19 08:01:05,764 INFO L422 ceAbstractionStarter]: At program point L15-4(lines 15 18) the Hoare annotation is: false [2018-09-19 08:01:05,764 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-19 08:01:05,764 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-19 08:01:05,764 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-19 08:01:05,765 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-19 08:01:05,765 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-19 08:01:05,765 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-19 08:01:05,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:01:05 BoogieIcfgContainer [2018-09-19 08:01:05,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:01:05,776 INFO L168 Benchmark]: Toolchain (without parser) took 2251.28 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -716.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:05,778 INFO L168 Benchmark]: CDTParser took 0.27 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 08:01:05,778 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.09 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. [2018-09-19 08:01:05,780 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.96 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 08:01:05,780 INFO L168 Benchmark]: Boogie Preprocessor took 28.11 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 08:01:05,781 INFO L168 Benchmark]: RCFGBuilder took 364.73 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -774.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:05,784 INFO L168 Benchmark]: TraceAbstraction took 1493.64 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: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:05,792 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 327.09 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 26.96 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 28.11 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 364.73 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -774.4 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1493.64 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: 47.5 MB). Peak memory consumption was 47.5 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: 15]: Loop Invariant Derived loop invariant: ((2 * x <= 0 && 2 * n <= 4294967294) && 0 <= 2 * n + 4294967296) && 0 <= 2 * x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 20 SDslu, 41 SDs, 0 SdLazy, 14 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 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, 0.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9476190476190477 AbsIntWeakeningRatio, 0.6666666666666666 AbsIntAvgWeakeningVarsNumRemoved, 8.285714285714286 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 52 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.5s 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/for_infinite_loop_1_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-01-05-816.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/for_infinite_loop_1_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-01-05-816.csv Received shutdown request...