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.epf -i ../../../trunk/examples/svcomp/loop-acceleration/multivar_true-unreach-call1_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 05:01:21,205 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 05:01:21,207 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 05:01:21,227 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 05:01:21,227 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 05:01:21,228 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 05:01:21,229 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 05:01:21,233 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 05:01:21,237 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 05:01:21,238 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 05:01:21,239 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 05:01:21,239 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 05:01:21,241 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 05:01:21,244 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 05:01:21,252 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 05:01:21,253 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 05:01:21,254 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 05:01:21,255 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 05:01:21,261 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 05:01:21,265 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 05:01:21,266 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 05:01:21,267 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 05:01:21,274 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 05:01:21,288 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 05:01:21,318 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 05:01:21,319 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 05:01:21,320 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 05:01:21,320 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 05:01:21,320 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 05:01:21,321 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 05:01:21,321 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 05:01:21,321 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 05:01:21,321 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 05:01:21,321 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 05:01:21,322 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 05:01:21,322 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 05:01:21,323 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 05:01:21,323 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 05:01:21,324 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 05:01:21,324 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 05:01:21,324 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 05:01:21,324 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 05:01:21,324 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 05:01:21,325 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 05:01:21,327 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 05:01:21,327 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 05:01:21,327 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 05:01:21,327 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 05:01:21,327 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 05:01:21,328 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 05:01:21,328 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 05:01:21,328 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 05:01:21,328 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 05:01:21,329 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 05:01:21,329 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 05:01:21,329 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 05:01:21,329 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 05:01:21,329 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 05:01:21,390 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 05:01:21,402 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 05:01:21,406 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 05:01:21,408 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 05:01:21,409 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 05:01:21,409 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/multivar_true-unreach-call1_true-termination.i [2018-11-07 05:01:21,467 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52da3847/daba0cc4f97d48d589b7cdeeee50a8f7/FLAGa87a2fead [2018-11-07 05:01:21,866 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 05:01:21,866 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_true-unreach-call1_true-termination.i [2018-11-07 05:01:21,873 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52da3847/daba0cc4f97d48d589b7cdeeee50a8f7/FLAGa87a2fead [2018-11-07 05:01:21,888 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52da3847/daba0cc4f97d48d589b7cdeeee50a8f7 [2018-11-07 05:01:21,898 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 05:01:21,903 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 05:01:21,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 05:01:21,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 05:01:21,907 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 05:01:21,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:01:21" (1/1) ... [2018-11-07 05:01:21,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41600c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:01:21, skipping insertion in model container [2018-11-07 05:01:21,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:01:21" (1/1) ... [2018-11-07 05:01:21,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 05:01:21,942 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 05:01:22,168 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 05:01:22,171 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 05:01:22,187 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 05:01:22,201 INFO L193 MainTranslator]: Completed translation [2018-11-07 05:01:22,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:01:22 WrapperNode [2018-11-07 05:01:22,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 05:01:22,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 05:01:22,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 05:01:22,203 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 05:01:22,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:01:22" (1/1) ... [2018-11-07 05:01:22,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:01:22" (1/1) ... [2018-11-07 05:01:22,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 05:01:22,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 05:01:22,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 05:01:22,228 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 05:01:22,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:01:22" (1/1) ... [2018-11-07 05:01:22,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:01:22" (1/1) ... [2018-11-07 05:01:22,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:01:22" (1/1) ... [2018-11-07 05:01:22,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:01:22" (1/1) ... [2018-11-07 05:01:22,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:01:22" (1/1) ... [2018-11-07 05:01:22,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:01:22" (1/1) ... [2018-11-07 05:01:22,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:01:22" (1/1) ... [2018-11-07 05:01:22,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 05:01:22,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 05:01:22,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 05:01:22,248 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 05:01:22,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:01:22" (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 [2018-11-07 05:01:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 05:01:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 05:01:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 05:01:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 05:01:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 05:01:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 05:01:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-07 05:01:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-07 05:01:22,569 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 05:01:22,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:01:22 BoogieIcfgContainer [2018-11-07 05:01:22,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 05:01:22,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 05:01:22,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 05:01:22,574 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 05:01:22,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:01:21" (1/3) ... [2018-11-07 05:01:22,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4ee680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:01:22, skipping insertion in model container [2018-11-07 05:01:22,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:01:22" (2/3) ... [2018-11-07 05:01:22,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4ee680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:01:22, skipping insertion in model container [2018-11-07 05:01:22,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:01:22" (3/3) ... [2018-11-07 05:01:22,578 INFO L112 eAbstractionObserver]: Analyzing ICFG multivar_true-unreach-call1_true-termination.i [2018-11-07 05:01:22,588 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 05:01:22,596 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 05:01:22,612 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 05:01:22,646 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 05:01:22,646 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 05:01:22,646 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 05:01:22,647 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 05:01:22,647 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 05:01:22,647 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 05:01:22,647 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 05:01:22,647 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 05:01:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-07 05:01:22,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-07 05:01:22,672 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 05:01:22,673 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 05:01:22,675 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 05:01:22,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:01:22,681 INFO L82 PathProgramCache]: Analyzing trace with hash -10373566, now seen corresponding path program 1 times [2018-11-07 05:01:22,683 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 05:01:22,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:01:22,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:01:22,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:01:22,733 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 05:01:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:01:22,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:01:22,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 05:01:22,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-07 05:01:22,786 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 05:01:22,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-07 05:01:22,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-07 05:01:22,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 05:01:22,806 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-11-07 05:01:22,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 05:01:22,827 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-11-07 05:01:22,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-07 05:01:22,828 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-07 05:01:22,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 05:01:22,837 INFO L225 Difference]: With dead ends: 29 [2018-11-07 05:01:22,837 INFO L226 Difference]: Without dead ends: 12 [2018-11-07 05:01:22,840 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 05:01:22,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-07 05:01:22,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-07 05:01:22,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-07 05:01:22,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-07 05:01:22,874 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-11-07 05:01:22,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 05:01:22,874 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-07 05:01:22,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-07 05:01:22,875 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-07 05:01:22,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-07 05:01:22,876 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 05:01:22,876 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 05:01:22,876 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 05:01:22,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:01:22,877 INFO L82 PathProgramCache]: Analyzing trace with hash -571410792, now seen corresponding path program 1 times [2018-11-07 05:01:22,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 05:01:22,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:01:22,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:01:22,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:01:22,879 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 05:01:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:01:23,206 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-11-07 05:01:23,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:01:23,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 05:01:23,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 05:01:23,255 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 05:01:23,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 05:01:23,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 05:01:23,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-07 05:01:23,258 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 6 states. [2018-11-07 05:01:23,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 05:01:23,342 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-11-07 05:01:23,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 05:01:23,343 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-11-07 05:01:23,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 05:01:23,343 INFO L225 Difference]: With dead ends: 12 [2018-11-07 05:01:23,343 INFO L226 Difference]: Without dead ends: 0 [2018-11-07 05:01:23,344 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-07 05:01:23,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-07 05:01:23,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-07 05:01:23,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-07 05:01:23,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-07 05:01:23,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-07 05:01:23,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 05:01:23,346 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-07 05:01:23,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 05:01:23,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-07 05:01:23,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-07 05:01:23,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-07 05:01:23,526 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-07 05:01:23,526 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-07 05:01:23,526 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-07 05:01:23,526 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-07 05:01:23,527 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-07 05:01:23,527 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-07 05:01:23,527 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 9 17) the Hoare annotation is: true [2018-11-07 05:01:23,527 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 9 17) no Hoare annotation was computed. [2018-11-07 05:01:23,527 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 9 17) no Hoare annotation was computed. [2018-11-07 05:01:23,528 INFO L425 ceAbstractionStarter]: For program point L12-1(lines 12 15) no Hoare annotation was computed. [2018-11-07 05:01:23,528 INFO L421 ceAbstractionStarter]: At program point L12-3(lines 12 15) the Hoare annotation is: (= main_~x~0 main_~y~0) [2018-11-07 05:01:23,528 INFO L421 ceAbstractionStarter]: At program point L12-4(lines 12 15) the Hoare annotation is: (and (<= (+ (* 4294967296 (div main_~x~0 4294967296)) 1024) main_~x~0) (= main_~x~0 main_~y~0)) [2018-11-07 05:01:23,529 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-07 05:01:23,529 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-07 05:01:23,529 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-07 05:01:23,529 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-07 05:01:23,530 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-07 05:01:23,530 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-07 05:01:23,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:01:23 BoogieIcfgContainer [2018-11-07 05:01:23,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 05:01:23,545 INFO L168 Benchmark]: Toolchain (without parser) took 1646.32 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -748.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 05:01:23,547 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. [2018-11-07 05:01:23,548 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.94 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. [2018-11-07 05:01:23,549 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.43 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. [2018-11-07 05:01:23,549 INFO L168 Benchmark]: Boogie Preprocessor took 19.83 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. [2018-11-07 05:01:23,550 INFO L168 Benchmark]: RCFGBuilder took 322.21 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2018-11-07 05:01:23,551 INFO L168 Benchmark]: TraceAbstraction took 973.79 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: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2018-11-07 05:01:23,557 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 298.94 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 24.43 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 19.83 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 322.21 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 973.79 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: 30.4 MB). Peak memory consumption was 30.4 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: 12]: Loop Invariant Derived loop invariant: x == y - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 2 SDslu, 19 SDs, 0 SdLazy, 10 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s 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, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 21 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 381 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...