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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 20:44:04,414 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 20:44:04,418 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 20:44:04,435 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 20:44:04,436 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 20:44:04,438 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 20:44:04,439 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 20:44:04,441 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 20:44:04,443 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 20:44:04,444 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 20:44:04,445 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 20:44:04,445 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 20:44:04,446 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 20:44:04,447 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 20:44:04,448 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 20:44:04,449 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 20:44:04,450 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 20:44:04,452 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 20:44:04,454 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 20:44:04,456 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 20:44:04,457 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 20:44:04,458 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 20:44:04,460 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 20:44:04,461 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 20:44:04,461 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 20:44:04,462 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 20:44:04,463 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 20:44:04,464 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 20:44:04,464 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 20:44:04,466 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 20:44:04,466 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 20:44:04,467 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-12 20:44:04,469 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 20:44:04,494 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 20:44:04,494 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 20:44:04,495 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 20:44:04,495 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 20:44:04,496 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 20:44:04,496 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 20:44:04,496 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 20:44:04,497 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 20:44:04,497 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 20:44:04,497 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 20:44:04,497 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 20:44:04,497 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 20:44:04,498 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 20:44:04,498 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 20:44:04,499 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 20:44:04,500 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 20:44:04,500 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 20:44:04,500 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 20:44:04,500 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 20:44:04,501 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 20:44:04,502 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 20:44:04,502 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 20:44:04,502 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 20:44:04,503 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 20:44:04,503 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 20:44:04,503 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 20:44:04,503 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 20:44:04,503 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 20:44:04,504 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 20:44:04,504 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 20:44:04,504 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 20:44:04,504 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 20:44:04,504 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 20:44:04,505 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 20:44:04,505 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 20:44:04,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 20:44:04,588 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 20:44:04,592 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 20:44:04,594 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 20:44:04,595 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 20:44:04,595 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c.v+cfa-reducer.c [2018-11-12 20:44:04,662 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b8b4855/7944cb90a108480591940c8f2f3ef53a/FLAGa5b4e9014 [2018-11-12 20:44:05,146 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 20:44:05,147 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3_true-unreach-call.c.v+cfa-reducer.c [2018-11-12 20:44:05,153 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b8b4855/7944cb90a108480591940c8f2f3ef53a/FLAGa5b4e9014 [2018-11-12 20:44:05,169 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b8b4855/7944cb90a108480591940c8f2f3ef53a [2018-11-12 20:44:05,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 20:44:05,182 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 20:44:05,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 20:44:05,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 20:44:05,187 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 20:44:05,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:44:05" (1/1) ... [2018-11-12 20:44:05,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f50ab47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:05, skipping insertion in model container [2018-11-12 20:44:05,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:44:05" (1/1) ... [2018-11-12 20:44:05,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 20:44:05,227 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 20:44:05,458 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 20:44:05,463 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 20:44:05,487 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 20:44:05,507 INFO L193 MainTranslator]: Completed translation [2018-11-12 20:44:05,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:05 WrapperNode [2018-11-12 20:44:05,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 20:44:05,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 20:44:05,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 20:44:05,509 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 20:44:05,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:05" (1/1) ... [2018-11-12 20:44:05,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:05" (1/1) ... [2018-11-12 20:44:05,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 20:44:05,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 20:44:05,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 20:44:05,537 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 20:44:05,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:05" (1/1) ... [2018-11-12 20:44:05,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:05" (1/1) ... [2018-11-12 20:44:05,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:05" (1/1) ... [2018-11-12 20:44:05,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:05" (1/1) ... [2018-11-12 20:44:05,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:05" (1/1) ... [2018-11-12 20:44:05,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:05" (1/1) ... [2018-11-12 20:44:05,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:05" (1/1) ... [2018-11-12 20:44:05,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 20:44:05,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 20:44:05,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 20:44:05,580 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 20:44:05,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:05" (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 [2018-11-12 20:44:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 20:44:05,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 20:44:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 20:44:05,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 20:44:05,717 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 20:44:05,717 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 20:44:06,006 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 20:44:06,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:44:06 BoogieIcfgContainer [2018-11-12 20:44:06,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 20:44:06,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 20:44:06,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 20:44:06,011 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 20:44:06,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:44:05" (1/3) ... [2018-11-12 20:44:06,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cc8798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:44:06, skipping insertion in model container [2018-11-12 20:44:06,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:05" (2/3) ... [2018-11-12 20:44:06,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cc8798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:44:06, skipping insertion in model container [2018-11-12 20:44:06,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:44:06" (3/3) ... [2018-11-12 20:44:06,015 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c.v+cfa-reducer.c [2018-11-12 20:44:06,026 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 20:44:06,037 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 20:44:06,056 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 20:44:06,093 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 20:44:06,093 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 20:44:06,093 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 20:44:06,094 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 20:44:06,094 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 20:44:06,094 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 20:44:06,094 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 20:44:06,094 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 20:44:06,114 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-12 20:44:06,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-12 20:44:06,121 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 20:44:06,122 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 20:44:06,125 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 20:44:06,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:44:06,132 INFO L82 PathProgramCache]: Analyzing trace with hash 964689295, now seen corresponding path program 1 times [2018-11-12 20:44:06,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 20:44:06,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:44:06,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:44:06,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:44:06,194 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 20:44:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 20:44:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 20:44:06,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 20:44:06,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 20:44:06,406 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 20:44:06,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 20:44:06,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 20:44:06,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 20:44:06,445 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2018-11-12 20:44:06,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 20:44:06,584 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2018-11-12 20:44:06,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 20:44:06,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-12 20:44:06,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 20:44:06,598 INFO L225 Difference]: With dead ends: 34 [2018-11-12 20:44:06,598 INFO L226 Difference]: Without dead ends: 20 [2018-11-12 20:44:06,601 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 20:44:06,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-12 20:44:06,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2018-11-12 20:44:06,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-12 20:44:06,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2018-11-12 20:44:06,641 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2018-11-12 20:44:06,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 20:44:06,642 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2018-11-12 20:44:06,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 20:44:06,642 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2018-11-12 20:44:06,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-12 20:44:06,643 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 20:44:06,643 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 20:44:06,644 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 20:44:06,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:44:06,644 INFO L82 PathProgramCache]: Analyzing trace with hash 2096975293, now seen corresponding path program 1 times [2018-11-12 20:44:06,644 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 20:44:06,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:44:06,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:44:06,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:44:06,646 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 20:44:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 20:44:06,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 20:44:06,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 20:44:06,837 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 20:44:06,837 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 20:44:06,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 20:44:06,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 20:44:06,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-12 20:44:06,840 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2018-11-12 20:44:07,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 20:44:07,798 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2018-11-12 20:44:07,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 20:44:07,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-12 20:44:07,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 20:44:07,799 INFO L225 Difference]: With dead ends: 29 [2018-11-12 20:44:07,799 INFO L226 Difference]: Without dead ends: 0 [2018-11-12 20:44:07,800 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-12 20:44:07,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-12 20:44:07,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-12 20:44:07,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-12 20:44:07,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-12 20:44:07,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-12 20:44:07,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 20:44:07,802 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-12 20:44:07,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 20:44:07,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-12 20:44:07,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-12 20:44:07,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-12 20:44:07,864 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-12 20:44:07,864 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-12 20:44:07,865 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-12 20:44:07,865 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-12 20:44:07,865 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-12 20:44:07,865 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-12 20:44:07,865 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-12 20:44:07,865 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 47) no Hoare annotation was computed. [2018-11-12 20:44:07,865 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 7 76) no Hoare annotation was computed. [2018-11-12 20:44:07,865 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 74) no Hoare annotation was computed. [2018-11-12 20:44:07,866 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 7 76) no Hoare annotation was computed. [2018-11-12 20:44:07,866 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 7 76) the Hoare annotation is: true [2018-11-12 20:44:07,866 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-12 20:44:07,866 INFO L425 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2018-11-12 20:44:07,866 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 61) no Hoare annotation was computed. [2018-11-12 20:44:07,867 INFO L425 ceAbstractionStarter]: For program point L16(lines 16 48) no Hoare annotation was computed. [2018-11-12 20:44:07,867 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 75) no Hoare annotation was computed. [2018-11-12 20:44:07,867 INFO L421 ceAbstractionStarter]: At program point L45(lines 8 76) the Hoare annotation is: (or (and (<= main_~main__y~0 1) (<= 1 main_~main__y~0)) (let ((.cse0 (* 1431655765 main_~main__x~0))) (<= (+ .cse0 1) (* 4294967296 (div (+ .cse0 1431655765) 4294967296))))) [2018-11-12 20:44:07,867 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 46) no Hoare annotation was computed. [2018-11-12 20:44:07,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:44:07 BoogieIcfgContainer [2018-11-12 20:44:07,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 20:44:07,881 INFO L168 Benchmark]: Toolchain (without parser) took 2700.68 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -737.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2018-11-12 20:44:07,884 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. [2018-11-12 20:44:07,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.66 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. [2018-11-12 20:44:07,885 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.96 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. [2018-11-12 20:44:07,886 INFO L168 Benchmark]: Boogie Preprocessor took 41.82 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. [2018-11-12 20:44:07,887 INFO L168 Benchmark]: RCFGBuilder took 427.54 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -794.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-11-12 20:44:07,888 INFO L168 Benchmark]: TraceAbstraction took 1873.18 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. [2018-11-12 20:44:07,893 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 325.66 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 27.96 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 41.82 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 427.54 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -794.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1873.18 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 61]: 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: 8]: Loop Invariant Derived loop invariant: (main__y <= 1 && 1 <= main__y) || 1431655765 * main__x + 1 <= 4294967296 * ((1431655765 * main__x + 1431655765) / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 9 SDslu, 40 SDs, 0 SdLazy, 21 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 27 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 1021 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...