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/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 22:51:53,284 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 22:51:53,287 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 22:51:53,304 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 22:51:53,304 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 22:51:53,305 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 22:51:53,308 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 22:51:53,310 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 22:51:53,313 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 22:51:53,314 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 22:51:53,323 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 22:51:53,323 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 22:51:53,324 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 22:51:53,325 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 22:51:53,329 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 22:51:53,330 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 22:51:53,331 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 22:51:53,334 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 22:51:53,339 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 22:51:53,343 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 22:51:53,344 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 22:51:53,348 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 22:51:53,352 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-06 22:51:53,364 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 22:51:53,390 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 22:51:53,390 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 22:51:53,392 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 22:51:53,392 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 22:51:53,392 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 22:51:53,393 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 22:51:53,394 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 22:51:53,394 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 22:51:53,394 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 22:51:53,394 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 22:51:53,394 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 22:51:53,395 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 22:51:53,395 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 22:51:53,396 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 22:51:53,396 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 22:51:53,396 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 22:51:53,396 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 22:51:53,396 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 22:51:53,396 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 22:51:53,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:51:53,397 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 22:51:53,397 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 22:51:53,397 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 22:51:53,397 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 22:51:53,399 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 22:51:53,399 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 22:51:53,399 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 22:51:53,399 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 22:51:53,447 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 22:51:53,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 22:51:53,467 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 22:51:53,469 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 22:51:53,469 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 22:51:53,470 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-11-06 22:51:53,531 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab8976e74/5af8a43494e5411b9a781e29a812f7a3/FLAGcca0bc439 [2018-11-06 22:51:53,977 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 22:51:53,977 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-11-06 22:51:53,983 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab8976e74/5af8a43494e5411b9a781e29a812f7a3/FLAGcca0bc439 [2018-11-06 22:51:53,999 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab8976e74/5af8a43494e5411b9a781e29a812f7a3 [2018-11-06 22:51:54,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 22:51:54,014 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 22:51:54,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 22:51:54,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 22:51:54,019 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 22:51:54,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:51:54" (1/1) ... [2018-11-06 22:51:54,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38629173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:54, skipping insertion in model container [2018-11-06 22:51:54,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:51:54" (1/1) ... [2018-11-06 22:51:54,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 22:51:54,052 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 22:51:54,253 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:51:54,257 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 22:51:54,278 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:51:54,298 INFO L193 MainTranslator]: Completed translation [2018-11-06 22:51:54,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:54 WrapperNode [2018-11-06 22:51:54,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 22:51:54,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 22:51:54,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 22:51:54,300 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 22:51:54,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:54" (1/1) ... [2018-11-06 22:51:54,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:54" (1/1) ... [2018-11-06 22:51:54,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 22:51:54,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 22:51:54,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 22:51:54,339 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 22:51:54,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:54" (1/1) ... [2018-11-06 22:51:54,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:54" (1/1) ... [2018-11-06 22:51:54,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:54" (1/1) ... [2018-11-06 22:51:54,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:54" (1/1) ... [2018-11-06 22:51:54,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:54" (1/1) ... [2018-11-06 22:51:54,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:54" (1/1) ... [2018-11-06 22:51:54,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:54" (1/1) ... [2018-11-06 22:51:54,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 22:51:54,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 22:51:54,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 22:51:54,368 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 22:51:54,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:54" (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 [2018-11-06 22:51:54,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 22:51:54,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 22:51:54,750 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 22:51:54,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:51:54 BoogieIcfgContainer [2018-11-06 22:51:54,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 22:51:54,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 22:51:54,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 22:51:54,755 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 22:51:54,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:51:54" (1/3) ... [2018-11-06 22:51:54,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b648757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:51:54, skipping insertion in model container [2018-11-06 22:51:54,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:54" (2/3) ... [2018-11-06 22:51:54,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b648757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:51:54, skipping insertion in model container [2018-11-06 22:51:54,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:51:54" (3/3) ... [2018-11-06 22:51:54,759 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-11-06 22:51:54,768 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 22:51:54,778 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 22:51:54,796 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 22:51:54,833 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 22:51:54,834 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 22:51:54,834 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 22:51:54,835 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 22:51:54,835 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 22:51:54,835 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 22:51:54,835 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 22:51:54,835 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 22:51:54,836 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 22:51:54,856 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-06 22:51:54,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-06 22:51:54,867 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:51:54,869 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:51:54,871 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:51:54,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:51:54,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1807120264, now seen corresponding path program 1 times [2018-11-06 22:51:54,880 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:51:54,881 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:51:54,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:51:54,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:51:54,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:51:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:51:54,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:51:54,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:51:54,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 22:51:55,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-06 22:51:55,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-06 22:51:55,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-06 22:51:55,023 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2018-11-06 22:51:55,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:51:55,041 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2018-11-06 22:51:55,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-06 22:51:55,042 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2018-11-06 22:51:55,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:51:55,053 INFO L225 Difference]: With dead ends: 21 [2018-11-06 22:51:55,053 INFO L226 Difference]: Without dead ends: 9 [2018-11-06 22:51:55,057 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 [2018-11-06 22:51:55,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-11-06 22:51:55,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-11-06 22:51:55,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-06 22:51:55,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-11-06 22:51:55,091 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-11-06 22:51:55,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:51:55,092 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-11-06 22:51:55,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-06 22:51:55,092 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-11-06 22:51:55,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-06 22:51:55,093 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:51:55,093 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:51:55,094 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:51:55,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:51:55,095 INFO L82 PathProgramCache]: Analyzing trace with hash 178583503, now seen corresponding path program 1 times [2018-11-06 22:51:55,095 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:51:55,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:51:55,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:51:55,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:51:55,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:51:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:51:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:51:55,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:51:55,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 22:51:55,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 22:51:55,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 22:51:55,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 22:51:55,187 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2018-11-06 22:51:55,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:51:55,252 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-11-06 22:51:55,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 22:51:55,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-06 22:51:55,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:51:55,254 INFO L225 Difference]: With dead ends: 15 [2018-11-06 22:51:55,254 INFO L226 Difference]: Without dead ends: 11 [2018-11-06 22:51:55,255 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 [2018-11-06 22:51:55,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-11-06 22:51:55,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-06 22:51:55,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-06 22:51:55,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-11-06 22:51:55,259 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-11-06 22:51:55,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:51:55,260 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-11-06 22:51:55,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 22:51:55,260 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-11-06 22:51:55,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-06 22:51:55,261 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:51:55,261 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:51:55,261 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:51:55,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:51:55,262 INFO L82 PathProgramCache]: Analyzing trace with hash -132194519, now seen corresponding path program 1 times [2018-11-06 22:51:55,262 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:51:55,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:51:55,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:51:55,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:51:55,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:51:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:51:55,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:51:55,682 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:51:55,682 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:51:55,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:51:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:51:55,729 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:51:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:51:56,282 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 22:51:56,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2018-11-06 22:51:56,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-06 22:51:56,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-06 22:51:56,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-06 22:51:56,284 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-11-06 22:51:56,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:51:56,507 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-11-06 22:51:56,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 22:51:56,508 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2018-11-06 22:51:56,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:51:56,509 INFO L225 Difference]: With dead ends: 17 [2018-11-06 22:51:56,509 INFO L226 Difference]: Without dead ends: 13 [2018-11-06 22:51:56,510 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-11-06 22:51:56,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-06 22:51:56,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-06 22:51:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-06 22:51:56,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-11-06 22:51:56,514 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-11-06 22:51:56,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:51:56,515 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-11-06 22:51:56,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-06 22:51:56,515 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-06 22:51:56,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-06 22:51:56,516 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:51:56,516 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:51:56,516 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:51:56,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:51:56,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1857837059, now seen corresponding path program 2 times [2018-11-06 22:51:56,517 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:51:56,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:51:56,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:51:56,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:51:56,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:51:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:51:56,869 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-06 22:51:56,871 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:51:56,871 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:51:56,887 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-06 22:51:56,900 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-06 22:51:56,900 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-06 22:51:56,902 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:51:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:51:57,318 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 22:51:57,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11 [2018-11-06 22:51:57,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-06 22:51:57,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-06 22:51:57,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-11-06 22:51:57,320 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 11 states. [2018-11-06 22:51:57,847 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2018-11-06 22:51:57,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:51:57,948 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-11-06 22:51:57,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-06 22:51:57,949 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2018-11-06 22:51:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:51:57,950 INFO L225 Difference]: With dead ends: 17 [2018-11-06 22:51:57,950 INFO L226 Difference]: Without dead ends: 0 [2018-11-06 22:51:57,951 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2018-11-06 22:51:57,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-06 22:51:57,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-06 22:51:57,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-06 22:51:57,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-06 22:51:57,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-11-06 22:51:57,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:51:57,952 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-06 22:51:57,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-06 22:51:57,952 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-06 22:51:57,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-06 22:51:57,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-06 22:51:58,043 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-06 22:51:58,043 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-06 22:51:58,043 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-11-06 22:51:58,043 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-11-06 22:51:58,043 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-06 22:51:58,044 INFO L428 ceAbstractionStarter]: At program point L22(lines 10 23) the Hoare annotation is: true [2018-11-06 22:51:58,044 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-06 22:51:58,044 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-06 22:51:58,044 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~lo~0 (* 2 ULTIMATE.start_main_~mid~0)))) (and (<= ULTIMATE.start_main_~hi~0 .cse0) (<= .cse0 ULTIMATE.start_main_~hi~0) (<= ULTIMATE.start_main_~lo~0 ULTIMATE.start_main_~hi~0))) [2018-11-06 22:51:58,044 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-06 22:51:58,045 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-06 22:51:58,045 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-06 22:51:58,045 INFO L428 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-11-06 22:51:58,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:51:58 BoogieIcfgContainer [2018-11-06 22:51:58,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 22:51:58,058 INFO L168 Benchmark]: Toolchain (without parser) took 4045.62 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -637.8 MB). Peak memory consumption was 110.3 MB. Max. memory is 7.1 GB. [2018-11-06 22:51:58,060 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. [2018-11-06 22:51:58,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.82 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. [2018-11-06 22:51:58,061 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.50 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. [2018-11-06 22:51:58,062 INFO L168 Benchmark]: Boogie Preprocessor took 29.03 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. [2018-11-06 22:51:58,063 INFO L168 Benchmark]: RCFGBuilder took 382.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -788.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2018-11-06 22:51:58,064 INFO L168 Benchmark]: TraceAbstraction took 3305.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 140.5 MB). Peak memory consumption was 140.5 MB. Max. memory is 7.1 GB. [2018-11-06 22:51:58,069 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 284.82 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 38.50 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 29.03 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 382.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -788.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3305.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 140.5 MB). Peak memory consumption was 140.5 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (hi <= lo + 2 * mid && lo + 2 * mid <= hi) && lo <= hi - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 19 SDslu, 58 SDs, 0 SdLazy, 78 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 20 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 79 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 53 ConstructedInterpolants, 6 QuantifiedInterpolants, 4523 SizeOfPredicates, 10 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 2/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...