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/toy/tooDifficultLoopInvariant/INT_add_vs_inc.bpl
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This is Ultimate 0.1.23-00a8621
[2018-09-30 10:32:07,850 INFO L170 SettingsManager]: Resetting all preferences to default values...
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[2018-09-30 10:32:07,894 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-09-30 10:32:07,897 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values
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[2018-09-30 10:32:07,904 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2018-09-30 10:32:07,908 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values
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[2018-09-30 10:32:07,911 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
[2018-09-30 10:32:07,936 INFO L110 SettingsManager]: Loading preferences was successful
[2018-09-30 10:32:07,937 INFO L112 SettingsManager]: Preferences different from defaults after loading the file:
[2018-09-30 10:32:07,940 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-09-30 10:32:07,940 INFO L133 SettingsManager]: * to procedures, called more than once=true
[2018-09-30 10:32:07,940 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-09-30 10:32:07,941 INFO L133 SettingsManager]: * Create parallel compositions if possible=false
[2018-09-30 10:32:07,941 INFO L133 SettingsManager]: * Use SBE=true
[2018-09-30 10:32:07,941 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-09-30 10:32:07,941 INFO L133 SettingsManager]: * sizeof long=4
[2018-09-30 10:32:07,941 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true
[2018-09-30 10:32:07,942 INFO L133 SettingsManager]: * sizeof POINTER=4
[2018-09-30 10:32:07,942 INFO L133 SettingsManager]: * Check division by zero=IGNORE
[2018-09-30 10:32:07,942 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2018-09-30 10:32:07,942 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-09-30 10:32:07,942 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2018-09-30 10:32:07,942 INFO L133 SettingsManager]: * sizeof long double=12
[2018-09-30 10:32:07,943 INFO L133 SettingsManager]: * Check if freed pointer was valid=false
[2018-09-30 10:32:07,943 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2018-09-30 10:32:07,943 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-09-30 10:32:07,943 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements
[2018-09-30 10:32:07,943 INFO L133 SettingsManager]: * To the following directory=./dump/
[2018-09-30 10:32:07,944 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode
[2018-09-30 10:32:07,944 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-09-30 10:32:07,944 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-09-30 10:32:07,944 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2018-09-30 10:32:07,944 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-09-30 10:32:07,945 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL
[2018-09-30 10:32:07,945 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2018-09-30 10:32:07,945 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-09-30 10:32:07,945 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2018-09-30 10:32:07,990 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2018-09-30 10:32:08,003 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-09-30 10:32:08,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-09-30 10:32:08,009 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser...
[2018-09-30 10:32:08,009 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized
[2018-09-30 10:32:08,010 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/INT_add_vs_inc.bpl
[2018-09-30 10:32:08,010 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/INT_add_vs_inc.bpl'
[2018-09-30 10:32:08,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-09-30 10:32:08,061 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2018-09-30 10:32:08,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-09-30 10:32:08,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-09-30 10:32:08,062 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized
[2018-09-30 10:32:08,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:32:08" (1/1) ...
[2018-09-30 10:32:08,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:32:08" (1/1) ...
[2018-09-30 10:32:08,100 WARN L165 Inliner]: Program contained no entry procedure!
[2018-09-30 10:32:08,100 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start]
[2018-09-30 10:32:08,101 WARN L175 Inliner]: Fallback enabled. All procedures will be processed.
[2018-09-30 10:32:08,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-09-30 10:32:08,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-09-30 10:32:08,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2018-09-30 10:32:08,104 INFO L276 PluginConnector]: Boogie Preprocessor initialized
[2018-09-30 10:32:08,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:32:08" (1/1) ...
[2018-09-30 10:32:08,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:32:08" (1/1) ...
[2018-09-30 10:32:08,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:32:08" (1/1) ...
[2018-09-30 10:32:08,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:32:08" (1/1) ...
[2018-09-30 10:32:08,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:32:08" (1/1) ...
[2018-09-30 10:32:08,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:32:08" (1/1) ...
[2018-09-30 10:32:08,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:32:08" (1/1) ...
[2018-09-30 10:32:08,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-09-30 10:32:08,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-09-30 10:32:08,126 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2018-09-30 10:32:08,126 INFO L276 PluginConnector]: RCFGBuilder initialized
[2018-09-30 10:32:08,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:32:08" (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
[2018-09-30 10:32:08,199 INFO L124 BoogieDeclarations]: Specification and implementation of procedure add given in one single declaration
[2018-09-30 10:32:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure add
[2018-09-30 10:32:08,200 INFO L138 BoogieDeclarations]: Found implementation of procedure add
[2018-09-30 10:32:08,410 INFO L345 CfgBuilder]: Using library mode
[2018-09-30 10:32:08,410 INFO L202 PluginConnector]: Adding new model INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:32:08 BoogieIcfgContainer
[2018-09-30 10:32:08,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-09-30 10:32:08,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-09-30 10:32:08,412 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2018-09-30 10:32:08,420 INFO L276 PluginConnector]: TraceAbstraction initialized
[2018-09-30 10:32:08,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:32:08" (1/2) ...
[2018-09-30 10:32:08,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfd78b0 and model type INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 10:32:08, skipping insertion in model container
[2018-09-30 10:32:08,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:32:08" (2/2) ...
[2018-09-30 10:32:08,425 INFO L112 eAbstractionObserver]: Analyzing ICFG INT_add_vs_inc.bpl
[2018-09-30 10:32:08,436 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-09-30 10:32:08,449 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2018-09-30 10:32:08,508 INFO L133 ementStrategyFactory]: Using default assertion order modulation
[2018-09-30 10:32:08,509 INFO L381 AbstractCegarLoop]: Interprodecural is true
[2018-09-30 10:32:08,509 INFO L382 AbstractCegarLoop]: Hoare is true
[2018-09-30 10:32:08,510 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-09-30 10:32:08,510 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2018-09-30 10:32:08,510 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-09-30 10:32:08,510 INFO L386 AbstractCegarLoop]: Difference is false
[2018-09-30 10:32:08,511 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-09-30 10:32:08,511 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-09-30 10:32:08,528 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states.
[2018-09-30 10:32:08,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2018-09-30 10:32:08,542 INFO L367 BasicCegarLoop]: Found error trace
[2018-09-30 10:32:08,544 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1]
[2018-09-30 10:32:08,546 INFO L423 AbstractCegarLoop]: === Iteration 1 === [addErr0ASSERT_VIOLATIONASSERT]===
[2018-09-30 10:32:08,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-09-30 10:32:08,556 INFO L82 PathProgramCache]: Analyzing trace with hash 29984, now seen corresponding path program 1 times
[2018-09-30 10:32:08,559 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-09-30 10:32:08,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-09-30 10:32:08,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-09-30 10:32:08,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-09-30 10:32:08,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-09-30 10:32:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-09-30 10:32:09,021 WARN L178 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16
[2018-09-30 10:32:09,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-09-30 10:32:09,106 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-09-30 10:32:09,107 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2018-09-30 10:32:09,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2018-09-30 10:32:09,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2018-09-30 10:32:09,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2018-09-30 10:32:09,129 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states.
[2018-09-30 10:32:09,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-09-30 10:32:09,207 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions.
[2018-09-30 10:32:09,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2018-09-30 10:32:09,209 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3
[2018-09-30 10:32:09,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-09-30 10:32:09,221 INFO L225 Difference]: With dead ends: 11
[2018-09-30 10:32:09,221 INFO L226 Difference]: Without dead ends: 5
[2018-09-30 10:32:09,225 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2018-09-30 10:32:09,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states.
[2018-09-30 10:32:09,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5.
[2018-09-30 10:32:09,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2018-09-30 10:32:09,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions.
[2018-09-30 10:32:09,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3
[2018-09-30 10:32:09,256 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-09-30 10:32:09,256 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions.
[2018-09-30 10:32:09,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2018-09-30 10:32:09,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions.
[2018-09-30 10:32:09,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2018-09-30 10:32:09,257 INFO L367 BasicCegarLoop]: Found error trace
[2018-09-30 10:32:09,257 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2018-09-30 10:32:09,257 INFO L423 AbstractCegarLoop]: === Iteration 2 === [addErr0ASSERT_VIOLATIONASSERT]===
[2018-09-30 10:32:09,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-09-30 10:32:09,258 INFO L82 PathProgramCache]: Analyzing trace with hash 927558, now seen corresponding path program 1 times
[2018-09-30 10:32:09,258 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-09-30 10:32:09,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-09-30 10:32:09,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-09-30 10:32:09,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-09-30 10:32:09,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-09-30 10:32:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-09-30 10:32:09,597 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13
[2018-09-30 10:32:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-09-30 10:32:09,728 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-09-30 10:32:09,729 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
[2018-09-30 10:32:09,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-09-30 10:32:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-09-30 10:32:09,767 INFO L273 TraceCheckSpWp]: Computing forward predicates...
[2018-09-30 10:32:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-09-30 10:32:10,066 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-09-30 10:32:10,066 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5
[2018-09-30 10:32:10,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2018-09-30 10:32:10,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2018-09-30 10:32:10,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2018-09-30 10:32:10,068 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 7 states.
[2018-09-30 10:32:10,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-09-30 10:32:10,283 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions.
[2018-09-30 10:32:10,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2018-09-30 10:32:10,285 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 4
[2018-09-30 10:32:10,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-09-30 10:32:10,286 INFO L225 Difference]: With dead ends: 8
[2018-09-30 10:32:10,286 INFO L226 Difference]: Without dead ends: 6
[2018-09-30 10:32:10,288 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2018-09-30 10:32:10,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states.
[2018-09-30 10:32:10,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6.
[2018-09-30 10:32:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2018-09-30 10:32:10,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions.
[2018-09-30 10:32:10,296 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4
[2018-09-30 10:32:10,296 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-09-30 10:32:10,296 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions.
[2018-09-30 10:32:10,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2018-09-30 10:32:10,297 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions.
[2018-09-30 10:32:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2018-09-30 10:32:10,297 INFO L367 BasicCegarLoop]: Found error trace
[2018-09-30 10:32:10,297 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1]
[2018-09-30 10:32:10,298 INFO L423 AbstractCegarLoop]: === Iteration 3 === [addErr0ASSERT_VIOLATIONASSERT]===
[2018-09-30 10:32:10,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-09-30 10:32:10,299 INFO L82 PathProgramCache]: Analyzing trace with hash 28752352, now seen corresponding path program 2 times
[2018-09-30 10:32:10,299 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-09-30 10:32:10,300 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-09-30 10:32:10,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-09-30 10:32:10,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-09-30 10:32:10,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-09-30 10:32:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-09-30 10:32:10,582 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13
[2018-09-30 10:32:10,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-09-30 10:32:10,617 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-09-30 10:32:10,618 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
[2018-09-30 10:32:10,627 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1
[2018-09-30 10:32:10,634 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2018-09-30 10:32:10,635 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat
[2018-09-30 10:32:10,637 INFO L273 TraceCheckSpWp]: Computing forward predicates...
[2018-09-30 10:32:10,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-09-30 10:32:10,822 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-09-30 10:32:10,822 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2018-09-30 10:32:10,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2018-09-30 10:32:10,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2018-09-30 10:32:10,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2018-09-30 10:32:10,823 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 9 states.
[2018-09-30 10:32:11,221 WARN L178 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14
[2018-09-30 10:32:11,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-09-30 10:32:11,354 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions.
[2018-09-30 10:32:11,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2018-09-30 10:32:11,355 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5
[2018-09-30 10:32:11,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-09-30 10:32:11,355 INFO L225 Difference]: With dead ends: 8
[2018-09-30 10:32:11,356 INFO L226 Difference]: Without dead ends: 0
[2018-09-30 10:32:11,357 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210
[2018-09-30 10:32:11,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2018-09-30 10:32:11,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2018-09-30 10:32:11,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2018-09-30 10:32:11,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2018-09-30 10:32:11,358 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5
[2018-09-30 10:32:11,359 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-09-30 10:32:11,359 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2018-09-30 10:32:11,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2018-09-30 10:32:11,360 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2018-09-30 10:32:11,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2018-09-30 10:32:11,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2018-09-30 10:32:11,440 INFO L426 ceAbstractionStarter]: For program point addErr0ASSERT_VIOLATIONASSERT(line 23) no Hoare annotation was computed.
[2018-09-30 10:32:11,441 INFO L426 ceAbstractionStarter]: For program point addEXIT(lines 8 24) no Hoare annotation was computed.
[2018-09-30 10:32:11,441 INFO L422 ceAbstractionStarter]: At program point L17-1(lines 17 21) the Hoare annotation is: (let ((.cse0 (+ add_x add_y0)) (.cse1 (+ add_y add_result))) (and (<= add_result .cse0) (<= .cse1 .cse0) (<= .cse0 .cse1)))
[2018-09-30 10:32:11,441 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed.
[2018-09-30 10:32:11,441 INFO L426 ceAbstractionStarter]: For program point addENTRY(lines 8 24) no Hoare annotation was computed.
[2018-09-30 10:32:11,442 INFO L426 ceAbstractionStarter]: For program point addFINAL(lines 8 24) no Hoare annotation was computed.
[2018-09-30 10:32:11,451 INFO L202 PluginConnector]: Adding new model INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 10:32:11 BoogieIcfgContainer
[2018-09-30 10:32:11,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2018-09-30 10:32:11,452 INFO L168 Benchmark]: Toolchain (without parser) took 3393.12 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.
[2018-09-30 10:32:11,453 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.
[2018-09-30 10:32:11,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.36 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.
[2018-09-30 10:32:11,454 INFO L168 Benchmark]: Boogie Preprocessor took 21.71 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.
[2018-09-30 10:32:11,455 INFO L168 Benchmark]: RCFGBuilder took 284.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB.
[2018-09-30 10:32:11,456 INFO L168 Benchmark]: TraceAbstraction took 3038.93 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: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB.
[2018-09-30 10:32:11,459 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 41.36 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 21.71 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 284.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3038.93 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: 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: 23]: 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: 17]: Loop Invariant
Derived loop invariant: (result <= x + y0 && y + result <= x + y0) && x + y0 <= y + result
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 11 SDslu, 2 SDs, 0 SdLazy, 50 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 20 HoareAnnotationTreeSize, 1 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 69 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 666 SizeOfPredicates, 2 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/8 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/INT_add_vs_inc.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-30_10-32-11-472.csv
Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/INT_add_vs_inc.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_10-32-11-472.csv
Received shutdown request...