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/count_up_down_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 17:19:47,716 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 17:19:47,719 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 17:19:47,733 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 17:19:47,733 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 17:19:47,737 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 17:19:47,738 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 17:19:47,742 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 17:19:47,745 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 17:19:47,746 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 17:19:47,752 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 17:19:47,753 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 17:19:47,754 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 17:19:47,758 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 17:19:47,759 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 17:19:47,763 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 17:19:47,765 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 17:19:47,769 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 17:19:47,771 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 17:19:47,776 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 17:19:47,778 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 17:19:47,782 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 17:19:47,786 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 17:19:47,804 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 17:19:47,832 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 17:19:47,833 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 17:19:47,833 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 17:19:47,834 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 17:19:47,834 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 17:19:47,834 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 17:19:47,835 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 17:19:47,835 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 17:19:47,835 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 17:19:47,835 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 17:19:47,836 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 17:19:47,836 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 17:19:47,837 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 17:19:47,837 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 17:19:47,838 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 17:19:47,838 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 17:19:47,839 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 17:19:47,839 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 17:19:47,839 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 17:19:47,839 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 17:19:47,839 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 17:19:47,840 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 17:19:47,840 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 17:19:47,840 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 17:19:47,841 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 17:19:47,842 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 17:19:47,842 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 17:19:47,842 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 17:19:47,842 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 17:19:47,843 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 17:19:47,843 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 17:19:47,843 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 17:19:47,843 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 17:19:47,844 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 17:19:47,920 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 17:19:47,935 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 17:19:47,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 17:19:47,944 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 17:19:47,945 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 17:19:47,946 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/count_up_down_true-unreach-call_true-termination.i [2018-09-15 17:19:48,335 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d38245f3f/23e2add933ed42438d0f6b226b153234/FLAG8a8de87ef [2018-09-15 17:19:48,482 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 17:19:48,484 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/count_up_down_true-unreach-call_true-termination.i [2018-09-15 17:19:48,493 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d38245f3f/23e2add933ed42438d0f6b226b153234/FLAG8a8de87ef [2018-09-15 17:19:48,515 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d38245f3f/23e2add933ed42438d0f6b226b153234 [2018-09-15 17:19:48,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 17:19:48,529 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 17:19:48,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 17:19:48,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 17:19:48,538 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 17:19:48,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:19:48" (1/1) ... [2018-09-15 17:19:48,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@164d8960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:48, skipping insertion in model container [2018-09-15 17:19:48,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:19:48" (1/1) ... [2018-09-15 17:19:48,556 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 17:19:48,738 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:19:48,756 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 17:19:48,760 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:19:48,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:48 WrapperNode [2018-09-15 17:19:48,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 17:19:48,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 17:19:48,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 17:19:48,775 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 17:19:48,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:48" (1/1) ... [2018-09-15 17:19:48,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:48" (1/1) ... [2018-09-15 17:19:48,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 17:19:48,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 17:19:48,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 17:19:48,799 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 17:19:48,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:48" (1/1) ... [2018-09-15 17:19:48,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:48" (1/1) ... [2018-09-15 17:19:48,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:48" (1/1) ... [2018-09-15 17:19:48,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:48" (1/1) ... [2018-09-15 17:19:48,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:48" (1/1) ... [2018-09-15 17:19:48,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:48" (1/1) ... [2018-09-15 17:19:48,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:48" (1/1) ... [2018-09-15 17:19:48,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 17:19:48,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 17:19:48,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 17:19:48,822 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 17:19:48,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:48" (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 17:19:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 17:19:48,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 17:19:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 17:19:48,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 17:19:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 17:19:48,901 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 17:19:48,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 17:19:48,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 17:19:49,248 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 17:19:49,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:19:49 BoogieIcfgContainer [2018-09-15 17:19:49,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 17:19:49,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 17:19:49,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 17:19:49,253 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 17:19:49,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 05:19:48" (1/3) ... [2018-09-15 17:19:49,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41093f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:19:49, skipping insertion in model container [2018-09-15 17:19:49,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:19:48" (2/3) ... [2018-09-15 17:19:49,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41093f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:19:49, skipping insertion in model container [2018-09-15 17:19:49,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:19:49" (3/3) ... [2018-09-15 17:19:49,257 INFO L112 eAbstractionObserver]: Analyzing ICFG count_up_down_true-unreach-call_true-termination.i [2018-09-15 17:19:49,267 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 17:19:49,274 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 17:19:49,321 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 17:19:49,322 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 17:19:49,322 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 17:19:49,322 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 17:19:49,322 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 17:19:49,322 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 17:19:49,322 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 17:19:49,322 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 17:19:49,323 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 17:19:49,341 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-15 17:19:49,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-15 17:19:49,347 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:19:49,349 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:19:49,350 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:19:49,355 INFO L82 PathProgramCache]: Analyzing trace with hash -10373566, now seen corresponding path program 1 times [2018-09-15 17:19:49,358 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:19:49,359 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-15 17:19:49,361 INFO L202 CegarAbsIntRunner]: [0], [4], [16], [20], [23], [25], [31], [32], [33], [35] [2018-09-15 17:19:49,413 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:19:49,413 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:19:49,462 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:19:49,464 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-15 17:19:49,484 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:19:49,552 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 66.67% of their original sizes. [2018-09-15 17:19:49,556 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:19:49,598 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:19:49,600 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:19:49,600 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 17:19:49,600 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:19:49,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 17:19:49,624 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 17:19:49,625 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 17:19:49,628 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-09-15 17:19:49,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:19:49,675 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2018-09-15 17:19:49,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 17:19:49,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-15 17:19:49,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:19:49,685 INFO L225 Difference]: With dead ends: 34 [2018-09-15 17:19:49,686 INFO L226 Difference]: Without dead ends: 15 [2018-09-15 17:19:49,690 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 17:19:49,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-15 17:19:49,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2018-09-15 17:19:49,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-09-15 17:19:49,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-09-15 17:19:49,727 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-09-15 17:19:49,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:19:49,727 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-09-15 17:19:49,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 17:19:49,728 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-09-15 17:19:49,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-15 17:19:49,729 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:19:49,729 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:19:49,732 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:19:49,732 INFO L82 PathProgramCache]: Analyzing trace with hash -571410792, now seen corresponding path program 1 times [2018-09-15 17:19:49,733 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:19:49,733 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-15 17:19:49,733 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [20], [23], [25], [31], [32], [33], [35] [2018-09-15 17:19:49,735 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:19:49,735 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:19:49,763 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 17:19:49,782 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 17:19:49,782 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-15 17:19:49,799 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 17:19:49,815 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 17:19:49,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 05:19:49 BoogieIcfgContainer [2018-09-15 17:19:49,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 17:19:49,817 INFO L168 Benchmark]: Toolchain (without parser) took 1290.53 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -739.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2018-09-15 17:19:49,819 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 17:19:49,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.53 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 17:19:49,821 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.49 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 17:19:49,821 INFO L168 Benchmark]: Boogie Preprocessor took 22.86 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 17:19:49,822 INFO L168 Benchmark]: RCFGBuilder took 427.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -794.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-15 17:19:49,823 INFO L168 Benchmark]: TraceAbstraction took 566.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 7.1 GB. [2018-09-15 17:19:49,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 244.53 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 23.49 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 22.86 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 427.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -794.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 566.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 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: [L13] unsigned int n = __VERIFIER_nondet_uint(); [L14] unsigned int x=n, y=0; [L14] unsigned int x=n, y=0; [L15] COND FALSE !(x>0) [L20] CALL __VERIFIER_assert(y==n) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNKNOWN Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 3 SDslu, 16 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.5555555555555556 AbsIntAvgWeakeningVarsNumRemoved, 0.2222222222222222 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 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/count_up_down_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_17-19-49-841.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_up_down_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_17-19-49-841.csv Received shutdown request...