java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/sum03-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 19:20:42,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 19:20:42,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 19:20:42,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 19:20:42,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 19:20:42,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 19:20:42,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 19:20:42,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 19:20:42,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 19:20:42,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 19:20:42,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 19:20:42,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 19:20:42,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 19:20:42,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 19:20:42,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 19:20:42,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 19:20:42,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 19:20:42,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 19:20:42,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 19:20:42,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 19:20:42,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 19:20:42,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 19:20:42,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 19:20:42,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 19:20:42,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-03 19:20:42,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-03 19:20:42,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-03 19:20:42,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-03 19:20:42,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-03 19:20:42,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-03 19:20:42,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 19:20:42,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 19:20:42,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 19:20:42,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 19:20:42,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 19:20:42,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 19:20:42,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 19:20:42,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 19:20:42,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 19:20:42,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 19:20:42,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 19:20:42,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-03 19:20:42,660 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 19:20:42,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 19:20:42,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-03 19:20:42,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-03 19:20:42,663 INFO L138 SettingsManager]: * Use SBE=true [2019-09-03 19:20:42,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 19:20:42,663 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 19:20:42,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-03 19:20:42,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 19:20:42,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 19:20:42,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 19:20:42,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 19:20:42,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 19:20:42,666 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 19:20:42,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 19:20:42,666 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-03 19:20:42,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 19:20:42,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 19:20:42,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 19:20:42,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-03 19:20:42,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-03 19:20:42,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 19:20:42,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 19:20:42,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 19:20:42,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-03 19:20:42,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-03 19:20:42,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 19:20:42,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 19:20:42,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-03 19:20:42,716 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 19:20:42,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 19:20:42,734 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 19:20:42,738 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 19:20:42,739 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 19:20:42,739 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum03-2.i [2019-09-03 19:20:42,805 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e29a7450/23ee8aeb1d2b407fa351076b5f44636c/FLAGaae8612cc [2019-09-03 19:20:43,224 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 19:20:43,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-2.i [2019-09-03 19:20:43,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e29a7450/23ee8aeb1d2b407fa351076b5f44636c/FLAGaae8612cc [2019-09-03 19:20:43,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e29a7450/23ee8aeb1d2b407fa351076b5f44636c [2019-09-03 19:20:43,659 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 19:20:43,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 19:20:43,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 19:20:43,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 19:20:43,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 19:20:43,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 07:20:43" (1/1) ... [2019-09-03 19:20:43,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9a71346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:20:43, skipping insertion in model container [2019-09-03 19:20:43,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 07:20:43" (1/1) ... [2019-09-03 19:20:43,677 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 19:20:43,693 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 19:20:43,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 19:20:43,864 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 19:20:43,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 19:20:43,889 INFO L192 MainTranslator]: Completed translation [2019-09-03 19:20:43,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:20:43 WrapperNode [2019-09-03 19:20:43,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 19:20:43,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 19:20:43,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 19:20:43,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 19:20:43,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:20:43" (1/1) ... [2019-09-03 19:20:43,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:20:43" (1/1) ... [2019-09-03 19:20:44,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:20:43" (1/1) ... [2019-09-03 19:20:44,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:20:43" (1/1) ... [2019-09-03 19:20:44,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:20:43" (1/1) ... [2019-09-03 19:20:44,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:20:43" (1/1) ... [2019-09-03 19:20:44,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:20:43" (1/1) ... [2019-09-03 19:20:44,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 19:20:44,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 19:20:44,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 19:20:44,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 19:20:44,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:20:43" (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 [2019-09-03 19:20:44,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 19:20:44,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 19:20:44,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 19:20:44,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 19:20:44,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 19:20:44,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 19:20:44,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-03 19:20:44,066 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 19:20:44,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 19:20:44,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 19:20:44,229 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 19:20:44,229 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 19:20:44,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 07:20:44 BoogieIcfgContainer [2019-09-03 19:20:44,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 19:20:44,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-03 19:20:44,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-03 19:20:44,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-03 19:20:44,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.09 07:20:43" (1/3) ... [2019-09-03 19:20:44,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5d2eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 07:20:44, skipping insertion in model container [2019-09-03 19:20:44,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:20:43" (2/3) ... [2019-09-03 19:20:44,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5d2eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 07:20:44, skipping insertion in model container [2019-09-03 19:20:44,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 07:20:44" (3/3) ... [2019-09-03 19:20:44,239 INFO L109 eAbstractionObserver]: Analyzing ICFG sum03-2.i [2019-09-03 19:20:44,248 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-03 19:20:44,255 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-03 19:20:44,272 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-03 19:20:44,301 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-03 19:20:44,302 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-03 19:20:44,302 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-03 19:20:44,302 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-03 19:20:44,302 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-03 19:20:44,302 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-03 19:20:44,302 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-03 19:20:44,303 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-03 19:20:44,303 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-03 19:20:44,318 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-09-03 19:20:44,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-03 19:20:44,323 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 19:20:44,324 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 19:20:44,326 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 19:20:44,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 19:20:44,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1847991872, now seen corresponding path program 1 times [2019-09-03 19:20:44,333 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 19:20:44,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 19:20:44,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:20:44,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 19:20:44,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:20:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 19:20:44,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 19:20:44,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 19:20:44,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-03 19:20:44,634 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-03 19:20:44,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-03 19:20:44,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-03 19:20:44,654 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2019-09-03 19:20:44,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 19:20:44,721 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2019-09-03 19:20:44,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-03 19:20:44,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-09-03 19:20:44,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 19:20:44,730 INFO L225 Difference]: With dead ends: 23 [2019-09-03 19:20:44,730 INFO L226 Difference]: Without dead ends: 0 [2019-09-03 19:20:44,734 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-03 19:20:44,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-03 19:20:44,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-03 19:20:44,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-03 19:20:44,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-03 19:20:44,763 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-09-03 19:20:44,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 19:20:44,764 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-03 19:20:44,764 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-03 19:20:44,765 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-03 19:20:44,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-03 19:20:44,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-03 19:20:44,839 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-03 19:20:44,840 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-03 19:20:44,840 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-03 19:20:44,840 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-03 19:20:44,840 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-03 19:20:44,840 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-03 19:20:44,841 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 18) the Hoare annotation is: true [2019-09-03 19:20:44,841 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 18) no Hoare annotation was computed. [2019-09-03 19:20:44,841 INFO L439 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (let ((.cse0 (* 2 main_~x~0))) (and (<= .cse0 main_~sn~0) (<= main_~sn~0 .cse0))) [2019-09-03 19:20:44,844 INFO L439 ceAbstractionStarter]: At program point L16-1(lines 13 17) the Hoare annotation is: (let ((.cse0 (* 2 main_~x~0))) (and (<= .cse0 main_~sn~0) (<= main_~sn~0 .cse0))) [2019-09-03 19:20:44,844 INFO L443 ceAbstractionStarter]: For program point L13-2(lines 9 18) no Hoare annotation was computed. [2019-09-03 19:20:44,845 INFO L443 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2019-09-03 19:20:44,845 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2019-09-03 19:20:44,845 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2019-09-03 19:20:44,847 INFO L443 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-09-03 19:20:44,847 INFO L443 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2019-09-03 19:20:44,847 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-09-03 19:20:44,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.09 07:20:44 BoogieIcfgContainer [2019-09-03 19:20:44,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-03 19:20:44,872 INFO L168 Benchmark]: Toolchain (without parser) took 1207.59 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 87.7 MB in the beginning and 135.1 MB in the end (delta: -47.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-09-03 19:20:44,874 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 19:20:44,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.85 ms. Allocated memory is still 132.1 MB. Free memory was 87.5 MB in the beginning and 78.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-03 19:20:44,879 INFO L168 Benchmark]: Boogie Preprocessor took 124.30 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 78.4 MB in the beginning and 176.7 MB in the end (delta: -98.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-09-03 19:20:44,880 INFO L168 Benchmark]: RCFGBuilder took 215.40 ms. Allocated memory is still 199.8 MB. Free memory was 176.7 MB in the beginning and 165.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-03 19:20:44,882 INFO L168 Benchmark]: TraceAbstraction took 634.80 ms. Allocated memory is still 199.8 MB. Free memory was 165.3 MB in the beginning and 135.1 MB in the end (delta: 30.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2019-09-03 19:20:44,895 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 228.85 ms. Allocated memory is still 132.1 MB. Free memory was 87.5 MB in the beginning and 78.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.30 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 78.4 MB in the beginning and 176.7 MB in the end (delta: -98.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 215.40 ms. Allocated memory is still 199.8 MB. Free memory was 176.7 MB in the beginning and 165.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 634.80 ms. Allocated memory is still 199.8 MB. Free memory was 165.3 MB in the beginning and 135.1 MB in the end (delta: 30.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 13]: Loop Invariant Derived loop invariant: 2 * x <= sn && sn <= 2 * x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 5 SDslu, 17 SDs, 0 SdLazy, 10 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 27 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 315 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...