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_PUPT.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCake.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 21:59:14,022 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 21:59:14,024 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 21:59:14,036 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 21:59:14,036 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 21:59:14,037 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 21:59:14,041 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 21:59:14,043 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 21:59:14,046 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 21:59:14,048 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 21:59:14,051 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 21:59:14,051 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 21:59:14,052 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 21:59:14,053 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 21:59:14,057 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 21:59:14,057 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 21:59:14,058 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 21:59:14,060 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 21:59:14,072 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 21:59:14,074 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 21:59:14,075 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 21:59:14,076 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 21:59:14,078 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-26 21:59:14,086 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf [2018-09-26 21:59:14,103 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 21:59:14,104 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 21:59:14,105 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 21:59:14,105 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 21:59:14,105 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 21:59:14,106 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 21:59:14,106 INFO L133 SettingsManager]: * Use SBE=true [2018-09-26 21:59:14,106 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 21:59:14,106 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 21:59:14,106 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 21:59:14,107 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 21:59:14,107 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 21:59:14,107 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 21:59:14,107 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 21:59:14,107 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 21:59:14,107 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 21:59:14,108 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 21:59:14,108 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 21:59:14,108 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 21:59:14,108 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-26 21:59:14,108 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 21:59:14,109 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-26 21:59:14,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:59:14,109 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 21:59:14,109 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 21:59:14,109 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 21:59:14,110 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-26 21:59:14,110 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 21:59:14,110 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 21:59:14,110 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 21:59:14,110 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-26 21:59:14,166 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 21:59:14,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 21:59:14,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 21:59:14,187 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 21:59:14,188 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 21:59:14,188 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCake.bpl [2018-09-26 21:59:14,189 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCake.bpl' [2018-09-26 21:59:14,236 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 21:59:14,239 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 21:59:14,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 21:59:14,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 21:59:14,241 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 21:59:14,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:59:14" (1/1) ... [2018-09-26 21:59:14,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:59:14" (1/1) ... [2018-09-26 21:59:14,280 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-26 21:59:14,280 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-26 21:59:14,280 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-26 21:59:14,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 21:59:14,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 21:59:14,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 21:59:14,283 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 21:59:14,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:59:14" (1/1) ... [2018-09-26 21:59:14,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:59:14" (1/1) ... [2018-09-26 21:59:14,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:59:14" (1/1) ... [2018-09-26 21:59:14,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:59:14" (1/1) ... [2018-09-26 21:59:14,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:59:14" (1/1) ... [2018-09-26 21:59:14,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:59:14" (1/1) ... [2018-09-26 21:59:14,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:59:14" (1/1) ... [2018-09-26 21:59:14,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 21:59:14,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 21:59:14,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 21:59:14,301 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 21:59:14,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:59:14" (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 [2018-09-26 21:59:14,373 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-09-26 21:59:14,373 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-26 21:59:14,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-26 21:59:14,617 INFO L343 CfgBuilder]: Using library mode [2018-09-26 21:59:14,618 INFO L202 PluginConnector]: Adding new model GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:59:14 BoogieIcfgContainer [2018-09-26 21:59:14,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 21:59:14,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 21:59:14,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 21:59:14,624 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 21:59:14,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:59:14" (1/2) ... [2018-09-26 21:59:14,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36551425 and model type GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:59:14, skipping insertion in model container [2018-09-26 21:59:14,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:59:14" (2/2) ... [2018-09-26 21:59:14,628 INFO L112 eAbstractionObserver]: Analyzing ICFG GeometricalIntegerCake.bpl [2018-09-26 21:59:14,640 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-26 21:59:14,655 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-09-26 21:59:14,696 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 21:59:14,697 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 21:59:14,697 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 21:59:14,697 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-26 21:59:14,697 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 21:59:14,698 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 21:59:14,698 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 21:59:14,698 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 21:59:14,698 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 21:59:14,713 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-09-26 21:59:14,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-09-26 21:59:14,721 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:59:14,722 INFO L375 BasicCegarLoop]: trace histogram [1, 1] [2018-09-26 21:59:14,724 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:59:14,730 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 21:59:14,731 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-09-26 21:59:14,733 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:59:14,733 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:59:14,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:59:14,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:59:14,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:59:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:59:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:59:14,907 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:59:14,908 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-09-26 21:59:14,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:59:14,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:59:14,928 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-26 21:59:14,931 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-09-26 21:59:15,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:59:15,217 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-09-26 21:59:15,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:59:15,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-09-26 21:59:15,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:59:15,230 INFO L225 Difference]: With dead ends: 13 [2018-09-26 21:59:15,230 INFO L226 Difference]: Without dead ends: 8 [2018-09-26 21:59:15,234 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-26 21:59:15,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-26 21:59:15,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2018-09-26 21:59:15,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-09-26 21:59:15,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-26 21:59:15,264 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 2 [2018-09-26 21:59:15,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:59:15,265 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-09-26 21:59:15,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:59:15,265 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-26 21:59:15,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-26 21:59:15,265 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:59:15,266 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-26 21:59:15,266 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:59:15,266 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 21:59:15,266 INFO L82 PathProgramCache]: Analyzing trace with hash 29892, now seen corresponding path program 1 times [2018-09-26 21:59:15,267 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:59:15,267 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:59:15,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:59:15,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:59:15,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:59:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:59:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:59:15,308 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:59:15,308 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-09-26 21:59:15,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:59:15,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:59:15,310 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-26 21:59:15,311 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 3 states. [2018-09-26 21:59:15,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:59:15,408 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-09-26 21:59:15,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:59:15,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-26 21:59:15,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:59:15,409 INFO L225 Difference]: With dead ends: 8 [2018-09-26 21:59:15,409 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 21:59:15,411 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-26 21:59:15,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 21:59:15,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 21:59:15,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 21:59:15,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 21:59:15,413 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 3 [2018-09-26 21:59:15,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:59:15,414 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 21:59:15,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:59:15,414 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 21:59:15,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 21:59:15,415 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:59:15,415 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 21:59:15,415 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:59:15,415 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 21:59:15,416 INFO L82 PathProgramCache]: Analyzing trace with hash 926592, now seen corresponding path program 1 times [2018-09-26 21:59:15,416 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:59:15,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:59:15,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:59:15,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:59:15,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:59:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:59:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:59:15,617 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:59:15,617 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 [2018-09-26 21:59:15,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:59:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:59:15,647 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:59:15,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:59:15,959 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:59:15,960 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2018-09-26 21:59:15,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 21:59:15,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 21:59:15,961 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-26 21:59:15,961 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 8 states. [2018-09-26 21:59:16,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:59:16,448 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2018-09-26 21:59:16,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 21:59:16,449 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 4 [2018-09-26 21:59:16,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:59:16,450 INFO L225 Difference]: With dead ends: 9 [2018-09-26 21:59:16,450 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 21:59:16,451 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-26 21:59:16,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 21:59:16,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 21:59:16,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 21:59:16,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 21:59:16,452 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2018-09-26 21:59:16,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:59:16,452 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 21:59:16,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 21:59:16,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 21:59:16,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 21:59:16,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 21:59:16,522 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINVARIANTandASSERT(line 30) no Hoare annotation was computed. [2018-09-26 21:59:16,523 INFO L426 ceAbstractionStarter]: For program point mainENTRY(lines 20 38) no Hoare annotation was computed. [2018-09-26 21:59:16,523 INFO L426 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONASSERT(line 36) no Hoare annotation was computed. [2018-09-26 21:59:16,523 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 20 38) no Hoare annotation was computed. [2018-09-26 21:59:16,523 INFO L426 ceAbstractionStarter]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2018-09-26 21:59:16,524 INFO L422 ceAbstractionStarter]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (<= (+ (div main_init 2) main_eat) main_cakeLeft) (<= 0 main_eat)) [2018-09-26 21:59:16,524 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 20 38) no Hoare annotation was computed. [2018-09-26 21:59:16,535 INFO L202 PluginConnector]: Adding new model GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:59:16 BoogieIcfgContainer [2018-09-26 21:59:16,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 21:59:16,536 INFO L168 Benchmark]: Toolchain (without parser) took 2299.76 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: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-09-26 21:59:16,539 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.29 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. [2018-09-26 21:59:16,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.43 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. [2018-09-26 21:59:16,540 INFO L168 Benchmark]: Boogie Preprocessor took 17.76 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. [2018-09-26 21:59:16,541 INFO L168 Benchmark]: RCFGBuilder took 317.69 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. [2018-09-26 21:59:16,543 INFO L168 Benchmark]: TraceAbstraction took 1915.42 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: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2018-09-26 21:59:16,549 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 0.29 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 42.43 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 17.76 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 317.69 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 1915.42 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: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: loop invariant is valid and assertion always holds For all program executions holds that loop invariant is valid and assertion always holds at this location - PositiveResult [Line: 36]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: init / 2 + eat <= cakeLeft && 0 <= eat - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 2 error locations. SAFE Result, 1.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 11 SDslu, 1 SDs, 0 SdLazy, 23 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 3 NumberOfFragments, 11 HoareAnnotationTreeSize, 1 FomulaSimplifications, 29 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 1 QuantifiedInterpolants, 262 SizeOfPredicates, 0 NumberOfNonLiveVariables, 14 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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/GeometricalIntegerCake.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_21-59-16-564.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/GeometricalIntegerCake.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_21-59-16-564.csv Received shutdown request...