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/nonlinear/PositiveValue-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c372c2b [2018-10-02 11:58:12,937 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-02 11:58:12,939 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-02 11:58:12,958 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-02 11:58:12,958 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-02 11:58:12,960 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-02 11:58:12,961 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-02 11:58:12,963 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-02 11:58:12,966 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-02 11:58:12,967 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-02 11:58:12,969 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-02 11:58:12,969 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-02 11:58:12,971 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-02 11:58:12,973 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-02 11:58:12,982 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-02 11:58:12,983 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-02 11:58:12,984 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-02 11:58:12,986 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-02 11:58:12,993 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-02 11:58:12,997 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-02 11:58:12,998 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-02 11:58:13,000 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-02 11:58:13,003 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-02 11:58:13,016 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 [2018-10-02 11:58:13,037 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-02 11:58:13,038 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-02 11:58:13,039 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-02 11:58:13,039 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-02 11:58:13,040 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-02 11:58:13,040 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-02 11:58:13,040 INFO L133 SettingsManager]: * Use SBE=true [2018-10-02 11:58:13,041 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-02 11:58:13,041 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-02 11:58:13,041 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-02 11:58:13,042 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-02 11:58:13,042 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-02 11:58:13,043 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-02 11:58:13,043 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-02 11:58:13,043 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-02 11:58:13,043 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-02 11:58:13,043 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-02 11:58:13,044 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-02 11:58:13,044 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-02 11:58:13,044 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-02 11:58:13,045 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-02 11:58:13,046 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-02 11:58:13,046 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-02 11:58:13,046 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-02 11:58:13,046 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-02 11:58:13,047 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-02 11:58:13,047 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-02 11:58:13,047 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-02 11:58:13,047 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-02 11:58:13,047 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-02 11:58:13,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-02 11:58:13,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-02 11:58:13,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-02 11:58:13,144 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-02 11:58:13,144 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-02 11:58:13,145 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/PositiveValue-Safe.bpl [2018-10-02 11:58:13,145 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/PositiveValue-Safe.bpl' [2018-10-02 11:58:13,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-02 11:58:13,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-02 11:58:13,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-02 11:58:13,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-02 11:58:13,204 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-02 11:58:13,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:58:13" (1/1) ... [2018-10-02 11:58:13,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:58:13" (1/1) ... [2018-10-02 11:58:13,243 WARN L165 Inliner]: Program contained no entry procedure! [2018-10-02 11:58:13,243 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-10-02 11:58:13,243 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-10-02 11:58:13,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-02 11:58:13,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-02 11:58:13,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-02 11:58:13,247 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-02 11:58:13,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:58:13" (1/1) ... [2018-10-02 11:58:13,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:58:13" (1/1) ... [2018-10-02 11:58:13,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:58:13" (1/1) ... [2018-10-02 11:58:13,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:58:13" (1/1) ... [2018-10-02 11:58:13,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:58:13" (1/1) ... [2018-10-02 11:58:13,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:58:13" (1/1) ... [2018-10-02 11:58:13,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:58:13" (1/1) ... [2018-10-02 11:58:13,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-02 11:58:13,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-02 11:58:13,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-02 11:58:13,269 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-02 11:58:13,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:58:13" (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 [2018-10-02 11:58:13,342 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-10-02 11:58:13,342 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-02 11:58:13,342 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-02 11:58:13,571 INFO L337 CfgBuilder]: Using library mode [2018-10-02 11:58:13,572 INFO L202 PluginConnector]: Adding new model PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:58:13 BoogieIcfgContainer [2018-10-02 11:58:13,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-02 11:58:13,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-02 11:58:13,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-02 11:58:13,578 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-02 11:58:13,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:58:13" (1/2) ... [2018-10-02 11:58:13,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc68e90 and model type PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:58:13, skipping insertion in model container [2018-10-02 11:58:13,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:58:13" (2/2) ... [2018-10-02 11:58:13,583 INFO L112 eAbstractionObserver]: Analyzing ICFG PositiveValue-Safe.bpl [2018-10-02 11:58:13,594 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-02 11:58:13,609 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-02 11:58:13,670 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-02 11:58:13,670 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-02 11:58:13,671 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-02 11:58:13,671 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-02 11:58:13,671 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-02 11:58:13,671 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-02 11:58:13,671 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-02 11:58:13,672 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-02 11:58:13,672 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-02 11:58:13,688 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-10-02 11:58:13,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-10-02 11:58:13,695 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 11:58:13,696 INFO L375 BasicCegarLoop]: trace histogram [1, 1] [2018-10-02 11:58:13,698 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 11:58:13,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-02 11:58:13,704 INFO L82 PathProgramCache]: Analyzing trace with hash 973, now seen corresponding path program 1 times [2018-10-02 11:58:13,706 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 11:58:13,707 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 11:58:13,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:58:13,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:58:13,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:58:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:58:13,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 11:58:13,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-02 11:58:13,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-10-02 11:58:13,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-02 11:58:13,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-02 11:58:13,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-02 11:58:13,869 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-10-02 11:58:13,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 11:58:13,950 INFO L93 Difference]: Finished difference Result 9 states and 12 transitions. [2018-10-02 11:58:13,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-02 11:58:13,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-10-02 11:58:13,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 11:58:13,973 INFO L225 Difference]: With dead ends: 9 [2018-10-02 11:58:13,973 INFO L226 Difference]: Without dead ends: 6 [2018-10-02 11:58:13,978 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 [2018-10-02 11:58:14,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-10-02 11:58:14,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-10-02 11:58:14,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-10-02 11:58:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-10-02 11:58:14,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 8 transitions. Word has length 2 [2018-10-02 11:58:14,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 11:58:14,029 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-10-02 11:58:14,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-02 11:58:14,029 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 8 transitions. [2018-10-02 11:58:14,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-02 11:58:14,030 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 11:58:14,030 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-02 11:58:14,030 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 11:58:14,031 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-02 11:58:14,031 INFO L82 PathProgramCache]: Analyzing trace with hash 927594, now seen corresponding path program 1 times [2018-10-02 11:58:14,031 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 11:58:14,031 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 11:58:14,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:58:14,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:58:14,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:58:14,037 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-02 11:58:14,037 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-02 11:58:14,037 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-02 11:58:14,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:58:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:58:14,093 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-02 11:58:14,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 11:58:14,235 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-02 11:58:14,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2018-10-02 11:58:14,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-02 11:58:14,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-02 11:58:14,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-02 11:58:14,238 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. Second operand 4 states. [2018-10-02 11:58:14,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 11:58:14,288 INFO L93 Difference]: Finished difference Result 6 states and 8 transitions. [2018-10-02 11:58:14,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-02 11:58:14,289 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-10-02 11:58:14,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 11:58:14,289 INFO L225 Difference]: With dead ends: 6 [2018-10-02 11:58:14,289 INFO L226 Difference]: Without dead ends: 0 [2018-10-02 11:58:14,290 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-02 11:58:14,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-02 11:58:14,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-02 11:58:14,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-02 11:58:14,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-02 11:58:14,292 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2018-10-02 11:58:14,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 11:58:14,293 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-02 11:58:14,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-02 11:58:14,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-02 11:58:14,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-02 11:58:14,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-02 11:58:14,346 INFO L425 ceAbstractionStarter]: For program point mainENTRY(lines 10 27) no Hoare annotation was computed. [2018-10-02 11:58:14,346 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 27) no Hoare annotation was computed. [2018-10-02 11:58:14,346 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-10-02 11:58:14,346 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 26) no Hoare annotation was computed. [2018-10-02 11:58:14,347 INFO L421 ceAbstractionStarter]: At program point L19-2(lines 17 25) the Hoare annotation is: (= main_x 0) [2018-10-02 11:58:14,347 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 27) no Hoare annotation was computed. [2018-10-02 11:58:14,359 INFO L202 PluginConnector]: Adding new model PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:58:14 BoogieIcfgContainer [2018-10-02 11:58:14,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-02 11:58:14,362 INFO L168 Benchmark]: Toolchain (without parser) took 1161.88 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: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2018-10-02 11:58:14,365 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 11:58:14,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.48 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 11:58:14,368 INFO L168 Benchmark]: Boogie Preprocessor took 22.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 11:58:14,369 INFO L168 Benchmark]: RCFGBuilder took 303.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-02 11:58:14,370 INFO L168 Benchmark]: TraceAbstraction took 786.41 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: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2018-10-02 11:58:14,375 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 0.21 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 43.48 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 22.19 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. * RCFGBuilder took 303.63 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 786.41 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: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: 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: x == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 6 SDslu, 1 SDs, 0 SdLazy, 8 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 3 HoareAnnotationTreeSize, 1 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 10 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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/PositiveValue-Safe.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-02_11-58-14-392.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/PositiveValue-Safe.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-02_11-58-14-392.csv Received shutdown request...