java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 09:23:10,129 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 09:23:10,131 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 09:23:10,144 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 09:23:10,144 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 09:23:10,146 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 09:23:10,147 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 09:23:10,149 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 09:23:10,151 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 09:23:10,152 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 09:23:10,153 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 09:23:10,153 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 09:23:10,154 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 09:23:10,155 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 09:23:10,156 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 09:23:10,157 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 09:23:10,158 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 09:23:10,160 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 09:23:10,162 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 09:23:10,164 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 09:23:10,165 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 09:23:10,167 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 09:23:10,169 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 09:23:10,189 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-15 09:23:10,204 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 09:23:10,205 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 09:23:10,205 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 09:23:10,206 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 09:23:10,206 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 09:23:10,206 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 09:23:10,206 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 09:23:10,206 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 09:23:10,207 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 09:23:10,207 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 09:23:10,207 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 09:23:10,208 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 09:23:10,208 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 09:23:10,208 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 09:23:10,208 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 09:23:10,209 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 09:23:10,209 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 09:23:10,209 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 09:23:10,209 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 09:23:10,209 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 09:23:10,210 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 09:23:10,210 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 09:23:10,210 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 09:23:10,210 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 09:23:10,210 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 09:23:10,211 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 09:23:10,211 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 09:23:10,211 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 09:23:10,211 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 09:23:10,211 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 09:23:10,211 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 09:23:10,212 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 09:23:10,212 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 09:23:10,258 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 09:23:10,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 09:23:10,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 09:23:10,282 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 09:23:10,283 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 09:23:10,284 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-09-15 09:23:10,632 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bce2dd5d9/753bf8010f164b629d1532f6bf85b797/FLAG317a1bcf4 [2018-09-15 09:23:10,794 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 09:23:10,795 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-09-15 09:23:10,803 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bce2dd5d9/753bf8010f164b629d1532f6bf85b797/FLAG317a1bcf4 [2018-09-15 09:23:10,821 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bce2dd5d9/753bf8010f164b629d1532f6bf85b797 [2018-09-15 09:23:10,837 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 09:23:10,841 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 09:23:10,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 09:23:10,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 09:23:10,850 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 09:23:10,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:23:10" (1/1) ... [2018-09-15 09:23:10,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ef364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:10, skipping insertion in model container [2018-09-15 09:23:10,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:23:10" (1/1) ... [2018-09-15 09:23:10,868 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 09:23:11,066 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:23:11,084 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 09:23:11,090 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:23:11,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:11 WrapperNode [2018-09-15 09:23:11,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 09:23:11,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 09:23:11,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 09:23:11,105 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 09:23:11,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:11" (1/1) ... [2018-09-15 09:23:11,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:11" (1/1) ... [2018-09-15 09:23:11,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 09:23:11,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 09:23:11,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 09:23:11,128 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 09:23:11,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:11" (1/1) ... [2018-09-15 09:23:11,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:11" (1/1) ... [2018-09-15 09:23:11,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:11" (1/1) ... [2018-09-15 09:23:11,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:11" (1/1) ... [2018-09-15 09:23:11,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:11" (1/1) ... [2018-09-15 09:23:11,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:11" (1/1) ... [2018-09-15 09:23:11,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:11" (1/1) ... [2018-09-15 09:23:11,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 09:23:11,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 09:23:11,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 09:23:11,151 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 09:23:11,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 09:23:11,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 09:23:11,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 09:23:11,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 09:23:11,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 09:23:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 09:23:11,229 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 09:23:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 09:23:11,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 09:23:11,733 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 09:23:11,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:23:11 BoogieIcfgContainer [2018-09-15 09:23:11,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 09:23:11,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 09:23:11,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 09:23:11,739 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 09:23:11,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:23:10" (1/3) ... [2018-09-15 09:23:11,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fda076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:23:11, skipping insertion in model container [2018-09-15 09:23:11,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:11" (2/3) ... [2018-09-15 09:23:11,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fda076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:23:11, skipping insertion in model container [2018-09-15 09:23:11,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:23:11" (3/3) ... [2018-09-15 09:23:11,743 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build_true-unreach-call_true-termination.i [2018-09-15 09:23:11,761 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 09:23:11,780 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 09:23:11,868 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 09:23:11,869 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 09:23:11,869 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 09:23:11,869 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 09:23:11,869 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 09:23:11,870 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 09:23:11,870 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 09:23:11,870 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 09:23:11,870 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 09:23:11,897 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-09-15 09:23:11,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-15 09:23:11,905 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:11,906 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:23:11,907 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:11,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1225232818, now seen corresponding path program 1 times [2018-09-15 09:23:11,925 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:11,927 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-15 09:23:11,930 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [13], [17], [22], [36], [39], [41], [47], [48], [49], [51] [2018-09-15 09:23:11,985 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:11,986 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:12,090 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:12,092 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-09-15 09:23:12,116 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:12,205 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 41.67% of their original sizes. [2018-09-15 09:23:12,206 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:12,407 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:12,409 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:12,410 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-15 09:23:12,410 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:12,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-15 09:23:12,422 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-15 09:23:12,423 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-15 09:23:12,426 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 7 states. [2018-09-15 09:23:12,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:12,907 INFO L93 Difference]: Finished difference Result 63 states and 89 transitions. [2018-09-15 09:23:12,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-15 09:23:12,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-09-15 09:23:12,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:12,921 INFO L225 Difference]: With dead ends: 63 [2018-09-15 09:23:12,922 INFO L226 Difference]: Without dead ends: 36 [2018-09-15 09:23:12,926 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-15 09:23:12,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-09-15 09:23:12,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2018-09-15 09:23:12,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-09-15 09:23:12,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-09-15 09:23:12,984 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 13 [2018-09-15 09:23:12,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:12,985 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-09-15 09:23:12,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-15 09:23:12,986 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-09-15 09:23:12,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-15 09:23:12,988 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:12,988 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:23:12,989 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:12,989 INFO L82 PathProgramCache]: Analyzing trace with hash 837473053, now seen corresponding path program 1 times [2018-09-15 09:23:12,989 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:12,990 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 32 with the following transitions: [2018-09-15 09:23:12,990 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [13], [17], [20], [22], [26], [30], [36], [39], [41], [44], [46], [47], [48], [49], [51], [52], [53], [54] [2018-09-15 09:23:12,992 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:12,993 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:13,229 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:13,230 INFO L272 AbstractInterpreter]: Visited 20 different actions 258 times. Merged at 9 different actions 90 times. Widened at 3 different actions 13 times. Found 11 fixpoints after 4 different actions. Largest state had 8 variables. [2018-09-15 09:23:13,270 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:13,335 INFO L232 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 68.52% of their original sizes. [2018-09-15 09:23:13,335 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:13,684 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:13,684 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:13,684 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-15 09:23:13,685 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:13,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-15 09:23:13,686 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-15 09:23:13,686 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-15 09:23:13,687 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 8 states. [2018-09-15 09:23:13,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:13,914 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-09-15 09:23:13,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-15 09:23:13,916 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-09-15 09:23:13,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:13,917 INFO L225 Difference]: With dead ends: 46 [2018-09-15 09:23:13,917 INFO L226 Difference]: Without dead ends: 0 [2018-09-15 09:23:13,919 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-15 09:23:13,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-15 09:23:13,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-15 09:23:13,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-15 09:23:13,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-15 09:23:13,920 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-09-15 09:23:13,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:13,921 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-15 09:23:13,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-15 09:23:13,921 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-15 09:23:13,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-15 09:23:13,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-15 09:23:14,384 WARN L178 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 18 [2018-09-15 09:23:14,853 WARN L178 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 18 [2018-09-15 09:23:14,855 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-15 09:23:14,855 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-15 09:23:14,855 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-15 09:23:14,856 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-15 09:23:14,856 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-15 09:23:14,856 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-15 09:23:14,856 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2018-09-15 09:23:14,856 INFO L422 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0))) (and (<= 0 .cse0) (<= (+ main_~i~0 1) main_~nlen~0) (<= .cse0 14) (<= (* 2 main_~nlen~0) 4294967294) (<= 0 (* 2 main_~i~0)))) [2018-09-15 09:23:14,857 INFO L422 ceAbstractionStarter]: At program point L15-1(line 15) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0))) (and (<= 0 .cse0) (<= (+ main_~i~0 1) main_~nlen~0) (<= .cse0 14) (<= (* 2 main_~nlen~0) 4294967294) (<= 0 (* 2 main_~i~0)))) [2018-09-15 09:23:14,857 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2018-09-15 09:23:14,857 INFO L426 ceAbstractionStarter]: For program point L13-1(lines 13 18) no Hoare annotation was computed. [2018-09-15 09:23:14,857 INFO L426 ceAbstractionStarter]: For program point L13-3(lines 13 18) no Hoare annotation was computed. [2018-09-15 09:23:14,858 INFO L422 ceAbstractionStarter]: At program point L13-4(lines 13 18) the Hoare annotation is: (let ((.cse1 (* 2 main_~i~0)) (.cse0 (* 2 main_~nlen~0))) (and (<= .cse0 4294967294) (<= 0 .cse1) (<= .cse1 4294967294) (<= 0 (+ .cse0 4294967296)))) [2018-09-15 09:23:14,858 INFO L426 ceAbstractionStarter]: For program point L13-5(lines 13 18) no Hoare annotation was computed. [2018-09-15 09:23:14,858 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2018-09-15 09:23:14,858 INFO L426 ceAbstractionStarter]: For program point L16(lines 14 17) no Hoare annotation was computed. [2018-09-15 09:23:14,858 INFO L426 ceAbstractionStarter]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2018-09-15 09:23:14,859 INFO L422 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0))) (and (<= .cse0 16) (<= 0 .cse0) (<= (+ main_~i~0 1) main_~nlen~0) (<= (* 2 main_~nlen~0) 4294967294) (<= 0 (* 2 main_~i~0)))) [2018-09-15 09:23:14,859 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-15 09:23:14,859 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-15 09:23:14,859 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-15 09:23:14,860 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-15 09:23:14,860 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-15 09:23:14,860 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-15 09:23:14,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:23:14 BoogieIcfgContainer [2018-09-15 09:23:14,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 09:23:14,872 INFO L168 Benchmark]: Toolchain (without parser) took 4034.06 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -647.5 MB). Peak memory consumption was 85.9 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:14,873 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 09:23:14,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:14,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.14 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 09:23:14,876 INFO L168 Benchmark]: Boogie Preprocessor took 22.72 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 09:23:14,876 INFO L168 Benchmark]: RCFGBuilder took 582.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:14,878 INFO L168 Benchmark]: TraceAbstraction took 3135.82 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: 124.2 MB). Peak memory consumption was 124.2 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:14,883 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 262.34 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 23.14 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.72 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 582.76 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3135.82 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: 124.2 MB). Peak memory consumption was 124.2 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: 14]: Loop Invariant Derived loop invariant: (((2 * j <= 16 && 0 <= 2 * j) && i + 1 <= nlen) && 2 * nlen <= 4294967294) && 0 <= 2 * i - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((2 * nlen <= 4294967294 && 0 <= 2 * i) && 2 * i <= 4294967294) && 0 <= 2 * nlen + 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 2 OverallIterations, 3 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 SDtfs, 31 SDslu, 103 SDs, 0 SdLazy, 84 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9236111111111113 AbsIntWeakeningRatio, 0.5476190476190477 AbsIntAvgWeakeningVarsNumRemoved, 2.0952380952380953 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 16 PreInvPairs, 26 NumberOfFragments, 106 HoareAnnotationTreeSize, 16 FomulaSimplifications, 784 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 308 FormulaSimplificationTreeSizeReductionInter, 0.7s 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/id_build_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_09-23-14-898.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/id_build_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_09-23-14-898.csv Received shutdown request...