java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/half_2.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-133090d [2018-10-04 09:17:43,108 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 09:17:43,110 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 09:17:43,123 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 09:17:43,124 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 09:17:43,125 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 09:17:43,126 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 09:17:43,128 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 09:17:43,129 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 09:17:43,130 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 09:17:43,131 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 09:17:43,131 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 09:17:43,132 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 09:17:43,133 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 09:17:43,134 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 09:17:43,135 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 09:17:43,136 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 09:17:43,137 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 09:17:43,139 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 09:17:43,141 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 09:17:43,142 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 09:17:43,143 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 09:17:43,151 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-04 09:17:43,167 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-04 09:17:43,197 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 09:17:43,197 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 09:17:43,198 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 09:17:43,198 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 09:17:43,200 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 09:17:43,200 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 09:17:43,200 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 09:17:43,201 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 09:17:43,204 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 09:17:43,204 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 09:17:43,204 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 09:17:43,204 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 09:17:43,204 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 09:17:43,205 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 09:17:43,205 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 09:17:43,205 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 09:17:43,205 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 09:17:43,205 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 09:17:43,206 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 09:17:43,206 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 09:17:43,206 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 09:17:43,206 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 09:17:43,206 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 09:17:43,207 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 09:17:43,207 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 09:17:43,207 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 09:17:43,207 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 09:17:43,207 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 09:17:43,208 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 09:17:43,208 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 09:17:43,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 09:17:43,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 09:17:43,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 09:17:43,283 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 09:17:43,283 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 09:17:43,284 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/half_2.i_3.bpl [2018-10-04 09:17:43,284 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/half_2.i_3.bpl' [2018-10-04 09:17:43,333 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 09:17:43,334 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 09:17:43,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 09:17:43,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 09:17:43,335 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 09:17:43,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:17:43" (1/1) ... [2018-10-04 09:17:43,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:17:43" (1/1) ... [2018-10-04 09:17:43,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 09:17:43,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 09:17:43,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 09:17:43,378 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 09:17:43,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:17:43" (1/1) ... [2018-10-04 09:17:43,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:17:43" (1/1) ... [2018-10-04 09:17:43,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:17:43" (1/1) ... [2018-10-04 09:17:43,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:17:43" (1/1) ... [2018-10-04 09:17:43,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:17:43" (1/1) ... [2018-10-04 09:17:43,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:17:43" (1/1) ... [2018-10-04 09:17:43,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:17:43" (1/1) ... [2018-10-04 09:17:43,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 09:17:43,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 09:17:43,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 09:17:43,399 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 09:17:43,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:17:43" (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 [2018-10-04 09:17:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 09:17:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 09:17:43,719 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 09:17:43,720 INFO L202 PluginConnector]: Adding new model half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:17:43 BoogieIcfgContainer [2018-10-04 09:17:43,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 09:17:43,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 09:17:43,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 09:17:43,725 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 09:17:43,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:17:43" (1/2) ... [2018-10-04 09:17:43,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e909e3f and model type half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 09:17:43, skipping insertion in model container [2018-10-04 09:17:43,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:17:43" (2/2) ... [2018-10-04 09:17:43,732 INFO L112 eAbstractionObserver]: Analyzing ICFG half_2.i_3.bpl [2018-10-04 09:17:43,743 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 09:17:43,752 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 09:17:43,813 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 09:17:43,814 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 09:17:43,814 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 09:17:43,814 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 09:17:43,815 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 09:17:43,815 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 09:17:43,815 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 09:17:43,815 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 09:17:43,815 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 09:17:43,835 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-10-04 09:17:43,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 09:17:43,848 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:17:43,849 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-04 09:17:43,851 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:17:43,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:17:43,857 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-10-04 09:17:43,859 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:17:43,860 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:17:43,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:17:43,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:17:43,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:17:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:17:44,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:17:44,018 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:17:44,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-04 09:17:44,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 09:17:44,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 09:17:44,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 09:17:44,036 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-10-04 09:17:44,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:17:44,084 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-10-04 09:17:44,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 09:17:44,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-10-04 09:17:44,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:17:44,097 INFO L225 Difference]: With dead ends: 11 [2018-10-04 09:17:44,097 INFO L226 Difference]: Without dead ends: 7 [2018-10-04 09:17:44,101 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 09:17:44,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-10-04 09:17:44,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-10-04 09:17:44,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-04 09:17:44,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-10-04 09:17:44,133 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-10-04 09:17:44,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:17:44,134 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-10-04 09:17:44,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 09:17:44,134 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-10-04 09:17:44,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 09:17:44,135 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:17:44,135 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-10-04 09:17:44,135 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:17:44,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:17:44,136 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-10-04 09:17:44,136 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:17:44,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:17:44,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:17:44,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:17:44,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:17:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:17:44,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:17:44,373 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:17:44,374 INFO L227 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 [2018-10-04 09:17:44,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:17:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:17:44,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:17:44,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:17:44,579 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 09:17:44,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2018-10-04 09:17:44,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-04 09:17:44,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-04 09:17:44,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-04 09:17:44,581 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-10-04 09:17:44,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:17:44,625 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-10-04 09:17:44,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-04 09:17:44,627 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-10-04 09:17:44,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:17:44,628 INFO L225 Difference]: With dead ends: 11 [2018-10-04 09:17:44,628 INFO L226 Difference]: Without dead ends: 9 [2018-10-04 09:17:44,630 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-04 09:17:44,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-10-04 09:17:44,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-04 09:17:44,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-04 09:17:44,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-10-04 09:17:44,639 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-10-04 09:17:44,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:17:44,639 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-10-04 09:17:44,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-04 09:17:44,640 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-10-04 09:17:44,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 09:17:44,641 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:17:44,641 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-10-04 09:17:44,642 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:17:44,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:17:44,642 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-10-04 09:17:44,642 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:17:44,643 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:17:44,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:17:44,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:17:44,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:17:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:17:44,810 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:17:44,811 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:17:44,811 INFO L227 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 [2018-10-04 09:17:44,827 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-04 09:17:44,850 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-04 09:17:44,850 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 09:17:44,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:17:45,018 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:17:45,049 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 09:17:45,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-10-04 09:17:45,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-04 09:17:45,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-04 09:17:45,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-04 09:17:45,051 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2018-10-04 09:17:45,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:17:45,200 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-10-04 09:17:45,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-04 09:17:45,200 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2018-10-04 09:17:45,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:17:45,201 INFO L225 Difference]: With dead ends: 13 [2018-10-04 09:17:45,201 INFO L226 Difference]: Without dead ends: 11 [2018-10-04 09:17:45,202 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-04 09:17:45,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-10-04 09:17:45,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-10-04 09:17:45,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-10-04 09:17:45,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-10-04 09:17:45,206 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-10-04 09:17:45,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:17:45,206 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-10-04 09:17:45,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-04 09:17:45,207 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-10-04 09:17:45,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 09:17:45,207 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:17:45,207 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-10-04 09:17:45,208 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:17:45,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:17:45,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1946815861, now seen corresponding path program 3 times [2018-10-04 09:17:45,208 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:17:45,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:17:45,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:17:45,210 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 09:17:45,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:17:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:17:45,347 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:17:45,347 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:17:45,348 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-04 09:17:45,358 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-04 09:17:45,372 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-10-04 09:17:45,372 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 09:17:45,374 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:17:45,524 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:17:45,557 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 09:17:45,557 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-10-04 09:17:45,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-04 09:17:45,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-04 09:17:45,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-04 09:17:45,559 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 9 states. [2018-10-04 09:17:45,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:17:45,642 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-10-04 09:17:45,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-04 09:17:45,643 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2018-10-04 09:17:45,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:17:45,644 INFO L225 Difference]: With dead ends: 11 [2018-10-04 09:17:45,644 INFO L226 Difference]: Without dead ends: 0 [2018-10-04 09:17:45,646 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-10-04 09:17:45,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-04 09:17:45,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-04 09:17:45,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-04 09:17:45,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-04 09:17:45,647 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-10-04 09:17:45,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:17:45,648 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-04 09:17:45,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-04 09:17:45,648 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-04 09:17:45,648 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-04 09:17:45,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-04 09:17:45,808 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 52) no Hoare annotation was computed. [2018-10-04 09:17:45,808 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 52) no Hoare annotation was computed. [2018-10-04 09:17:45,809 INFO L421 ceAbstractionStarter]: At program point L29(lines 29 43) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~n~5 (+ ULTIMATE.start_main_~k~5 2)) (<= 1 ULTIMATE.start_main_~k~5) (<= 4 ULTIMATE.start_main_~i~5)) (and (<= 2 ULTIMATE.start_main_~i~5) (<= 1 ULTIMATE.start_main_~n~5) (= ULTIMATE.start_main_~n~5 (+ ULTIMATE.start_main_~k~5 1))) (and (<= 0 ULTIMATE.start_main_~i~5) (<= ULTIMATE.start_main_~i~5 0) (= ULTIMATE.start_main_~n~5 ULTIMATE.start_main_~k~5)) (and (<= 2 ULTIMATE.start_main_~k~5) (<= (+ ULTIMATE.start_main_~n~5 2) (+ ULTIMATE.start_main_~k~5 ULTIMATE.start_main_~i~5)))) [2018-10-04 09:17:45,809 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 52) no Hoare annotation was computed. [2018-10-04 09:17:45,809 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 51) no Hoare annotation was computed. [2018-10-04 09:17:45,810 INFO L421 ceAbstractionStarter]: At program point L49(lines 26 49) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~n~5 (+ ULTIMATE.start_main_~k~5 2)) (<= 1 ULTIMATE.start_main_~k~5) (<= 4 ULTIMATE.start_main_~i~5)) (and (<= 2 ULTIMATE.start_main_~i~5) (<= 1 ULTIMATE.start_main_~n~5) (= ULTIMATE.start_main_~n~5 (+ ULTIMATE.start_main_~k~5 1))) (and (<= 0 ULTIMATE.start_main_~i~5) (<= ULTIMATE.start_main_~i~5 0) (= ULTIMATE.start_main_~n~5 ULTIMATE.start_main_~k~5)) (and (<= 2 ULTIMATE.start_main_~k~5) (<= (+ ULTIMATE.start_main_~n~5 2) (+ ULTIMATE.start_main_~k~5 ULTIMATE.start_main_~i~5)))) [2018-10-04 09:17:45,810 INFO L421 ceAbstractionStarter]: At program point L42(lines 42 50) the Hoare annotation is: false [2018-10-04 09:17:45,821 INFO L202 PluginConnector]: Adding new model half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 09:17:45 BoogieIcfgContainer [2018-10-04 09:17:45,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-04 09:17:45,823 INFO L168 Benchmark]: Toolchain (without parser) took 2489.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 129.5 MB). Peak memory consumption was 129.5 MB. Max. memory is 7.1 GB. [2018-10-04 09:17:45,825 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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. [2018-10-04 09:17:45,825 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.12 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. [2018-10-04 09:17:45,826 INFO L168 Benchmark]: Boogie Preprocessor took 20.59 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. [2018-10-04 09:17:45,827 INFO L168 Benchmark]: RCFGBuilder took 321.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-04 09:17:45,828 INFO L168 Benchmark]: TraceAbstraction took 2100.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-10-04 09:17:45,832 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.19 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. * Boogie Procedure Inliner took 42.12 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. * Boogie Preprocessor took 20.59 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. * RCFGBuilder took 321.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2100.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 51]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((((main_~n~5 <= main_~k~5 + 2 && 1 <= main_~k~5) && 4 <= main_~i~5) || ((2 <= main_~i~5 && 1 <= main_~n~5) && main_~n~5 == main_~k~5 + 1)) || ((0 <= main_~i~5 && main_~i~5 <= 0) && main_~n~5 == main_~k~5)) || (2 <= main_~k~5 && main_~n~5 + 2 <= main_~k~5 + main_~i~5) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((main_~n~5 <= main_~k~5 + 2 && 1 <= main_~k~5) && 4 <= main_~i~5) || ((2 <= main_~i~5 && 1 <= main_~n~5) && main_~n~5 == main_~k~5 + 1)) || ((0 <= main_~i~5 && main_~i~5 <= 0) && main_~n~5 == main_~k~5)) || (2 <= main_~k~5 && main_~n~5 + 2 <= main_~k~5 + main_~i~5) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 0 SDslu, 32 SDs, 0 SdLazy, 51 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=3, 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, 9 NumberOfFragments, 93 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 1887 SizeOfPredicates, 13 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/40 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/half_2.i_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_09-17-45-861.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/half_2.i_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-04_09-17-45-861.csv Received shutdown request...