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/HierarchicalTraceAbstraction/GeometricalIntegerCake.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-133090d [2018-10-04 09:30:28,600 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 09:30:28,602 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 09:30:28,620 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 09:30:28,620 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 09:30:28,621 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 09:30:28,622 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 09:30:28,626 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 09:30:28,627 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 09:30:28,629 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 09:30:28,630 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-04 09:30:28,678 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 09:30:28,698 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 09:30:28,698 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 09:30:28,699 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 09:30:28,699 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 09:30:28,700 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 09:30:28,700 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 09:30:28,701 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 09:30:28,701 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 09:30:28,701 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 09:30:28,701 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 09:30:28,701 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 09:30:28,702 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 09:30:28,703 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 09:30:28,703 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 09:30:28,703 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 09:30:28,703 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 09:30:28,704 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 09:30:28,704 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 09:30:28,704 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 09:30:28,704 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 09:30:28,704 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 09:30:28,705 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 09:30:28,706 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 09:30:28,706 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 09:30:28,706 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 09:30:28,707 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 09:30:28,707 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 09:30:28,707 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 09:30:28,707 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 09:30:28,707 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 09:30:28,758 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 09:30:28,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 09:30:28,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 09:30:28,775 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 09:30:28,776 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 09:30:28,777 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCake.bpl [2018-10-04 09:30:28,777 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalIntegerCake.bpl' [2018-10-04 09:30:28,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 09:30:28,824 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 09:30:28,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 09:30:28,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 09:30:28,825 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 09:30:28,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:30:28" (1/1) ... [2018-10-04 09:30:28,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:30:28" (1/1) ... [2018-10-04 09:30:28,863 WARN L165 Inliner]: Program contained no entry procedure! [2018-10-04 09:30:28,864 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-10-04 09:30:28,864 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-10-04 09:30:28,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 09:30:28,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 09:30:28,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 09:30:28,867 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 09:30:28,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:30:28" (1/1) ... [2018-10-04 09:30:28,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:30:28" (1/1) ... [2018-10-04 09:30:28,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:30:28" (1/1) ... [2018-10-04 09:30:28,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:30:28" (1/1) ... [2018-10-04 09:30:28,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:30:28" (1/1) ... [2018-10-04 09:30:28,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:30:28" (1/1) ... [2018-10-04 09:30:28,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:30:28" (1/1) ... [2018-10-04 09:30:28,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 09:30:28,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 09:30:28,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 09:30:28,889 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 09:30:28,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:30:28" (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 09:30:28,954 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-10-04 09:30:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-04 09:30:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-04 09:30:29,127 INFO L338 CfgBuilder]: Using library mode [2018-10-04 09:30:29,128 INFO L202 PluginConnector]: Adding new model GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:30:29 BoogieIcfgContainer [2018-10-04 09:30:29,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 09:30:29,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 09:30:29,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 09:30:29,132 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 09:30:29,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:30:28" (1/2) ... [2018-10-04 09:30:29,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a50e18 and model type GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 09:30:29, skipping insertion in model container [2018-10-04 09:30:29,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:30:29" (2/2) ... [2018-10-04 09:30:29,135 INFO L112 eAbstractionObserver]: Analyzing ICFG GeometricalIntegerCake.bpl [2018-10-04 09:30:29,145 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 09:30:29,153 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-10-04 09:30:29,203 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 09:30:29,204 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 09:30:29,204 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 09:30:29,204 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 09:30:29,204 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 09:30:29,204 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 09:30:29,205 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 09:30:29,205 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 09:30:29,205 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 09:30:29,220 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-10-04 09:30:29,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-10-04 09:30:29,228 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:30:29,232 INFO L375 BasicCegarLoop]: trace histogram [1, 1] [2018-10-04 09:30:29,236 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:30:29,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:30:29,246 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-10-04 09:30:29,249 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:30:29,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:30:29,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:30:29,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:30:29,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:30:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:30:29,490 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 09:30:29,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:30:29,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-10-04 09:30:29,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 09:30:29,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 09:30:29,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 09:30:29,515 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-10-04 09:30:29,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:30:29,664 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-10-04 09:30:29,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 09:30:29,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-10-04 09:30:29,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:30:29,687 INFO L225 Difference]: With dead ends: 13 [2018-10-04 09:30:29,687 INFO L226 Difference]: Without dead ends: 8 [2018-10-04 09:30:29,694 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 09:30:29,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-10-04 09:30:29,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2018-10-04 09:30:29,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-10-04 09:30:29,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-10-04 09:30:29,764 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 2 [2018-10-04 09:30:29,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:30:29,764 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-10-04 09:30:29,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 09:30:29,764 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-10-04 09:30:29,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-04 09:30:29,768 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:30:29,768 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-10-04 09:30:29,769 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:30:29,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:30:29,769 INFO L82 PathProgramCache]: Analyzing trace with hash 29892, now seen corresponding path program 1 times [2018-10-04 09:30:29,769 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:30:29,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:30:29,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:30:29,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:30:29,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:30:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:30:29,850 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 09:30:29,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:30:29,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-10-04 09:30:29,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 09:30:29,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 09:30:29,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 09:30:29,853 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 3 states. [2018-10-04 09:30:29,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:30:29,933 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-10-04 09:30:29,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 09:30:29,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-10-04 09:30:29,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:30:29,934 INFO L225 Difference]: With dead ends: 8 [2018-10-04 09:30:29,935 INFO L226 Difference]: Without dead ends: 7 [2018-10-04 09:30:29,940 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 09:30:29,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-10-04 09:30:29,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-10-04 09:30:29,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-04 09:30:29,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-10-04 09:30:29,943 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 3 [2018-10-04 09:30:29,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:30:29,944 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-10-04 09:30:29,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 09:30:29,944 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-10-04 09:30:29,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 09:30:29,944 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:30:29,944 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-04 09:30:29,947 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:30:29,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:30:29,947 INFO L82 PathProgramCache]: Analyzing trace with hash 926592, now seen corresponding path program 1 times [2018-10-04 09:30:29,948 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:30:29,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:30:29,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:30:29,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:30:29,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:30:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:30:30,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:30:30,162 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:30:30,162 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 09:30:30,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:30:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:30:30,200 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:30:30,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:30:30,461 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 09:30:30,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2018-10-04 09:30:30,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-04 09:30:30,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-04 09:30:30,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-04 09:30:30,463 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 8 states. [2018-10-04 09:30:30,666 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-10-04 09:30:30,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:30:30,771 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2018-10-04 09:30:30,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-04 09:30:30,771 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 4 [2018-10-04 09:30:30,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:30:30,772 INFO L225 Difference]: With dead ends: 9 [2018-10-04 09:30:30,772 INFO L226 Difference]: Without dead ends: 0 [2018-10-04 09:30:30,773 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-04 09:30:30,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-04 09:30:30,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-04 09:30:30,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-04 09:30:30,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-04 09:30:30,774 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2018-10-04 09:30:30,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:30:30,774 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-04 09:30:30,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-04 09:30:30,774 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-04 09:30:30,775 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-04 09:30:30,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-04 09:30:30,825 INFO L425 ceAbstractionStarter]: For program point mainENTRY(lines 20 38) no Hoare annotation was computed. [2018-10-04 09:30:30,826 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 20 38) no Hoare annotation was computed. [2018-10-04 09:30:30,826 INFO L425 ceAbstractionStarter]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2018-10-04 09:30:30,827 INFO L421 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)) [2018-10-04 09:30:30,827 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 20 38) no Hoare annotation was computed. [2018-10-04 09:30:30,827 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINVARIANTandASSERT(line 30) no Hoare annotation was computed. [2018-10-04 09:30:30,827 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONASSERT(line 36) no Hoare annotation was computed. [2018-10-04 09:30:30,838 INFO L202 PluginConnector]: Adding new model GeometricalIntegerCake.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 09:30:30 BoogieIcfgContainer [2018-10-04 09:30:30,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-04 09:30:30,839 INFO L168 Benchmark]: Toolchain (without parser) took 2015.91 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: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. [2018-10-04 09:30:30,840 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 09:30:30,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.77 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 09:30:30,842 INFO L168 Benchmark]: Boogie Preprocessor took 21.51 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 09:30:30,843 INFO L168 Benchmark]: RCFGBuilder took 239.25 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-04 09:30:30,844 INFO L168 Benchmark]: TraceAbstraction took 1709.50 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: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2018-10-04 09:30:30,848 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.77 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.51 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 239.25 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1709.50 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: 55.5 MB). Peak memory consumption was 55.5 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, 1.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 11 SDslu, 1 SDs, 0 SdLazy, 23 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s 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, 19 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 26 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s 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.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_09-30-30-861.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/GeometricalIntegerCake.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-04_09-30-30-861.csv Received shutdown request...