java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-935f392 [2018-07-23 13:41:49,804 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 13:41:49,806 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 13:41:49,820 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 13:41:49,821 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 13:41:49,821 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 13:41:49,823 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 13:41:49,824 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 13:41:49,827 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 13:41:49,827 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 13:41:49,828 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 13:41:49,829 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 13:41:49,830 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 13:41:49,830 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 13:41:49,832 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 13:41:49,833 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 13:41:49,834 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 13:41:49,838 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 13:41:49,843 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 13:41:49,847 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 13:41:49,849 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 13:41:49,853 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 13:41:49,855 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 13:41:49,856 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 13:41:49,856 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 13:41:49,857 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 13:41:49,862 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 13:41:49,863 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 13:41:49,863 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 13:41:49,864 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 13:41:49,868 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 13:41:49,869 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 13:41:49,873 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf [2018-07-23 13:41:49,889 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 13:41:49,889 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 13:41:49,891 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 13:41:49,894 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 13:41:49,895 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 13:41:49,895 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 13:41:49,895 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 13:41:49,895 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 13:41:49,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 13:41:49,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 13:41:49,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 13:41:50,001 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 13:41:50,002 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 13:41:50,003 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl [2018-07-23 13:41:50,003 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl' [2018-07-23 13:41:50,094 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 13:41:50,096 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 13:41:50,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 13:41:50,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 13:41:50,097 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 13:41:50,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:41:50" (1/1) ... [2018-07-23 13:41:50,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:41:50" (1/1) ... [2018-07-23 13:41:50,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:41:50" (1/1) ... [2018-07-23 13:41:50,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:41:50" (1/1) ... [2018-07-23 13:41:50,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:41:50" (1/1) ... [2018-07-23 13:41:50,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:41:50" (1/1) ... [2018-07-23 13:41:50,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:41:50" (1/1) ... [2018-07-23 13:41:50,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 13:41:50,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 13:41:50,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 13:41:50,177 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 13:41:50,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:41:50" (1/1) ... [2018-07-23 13:41:50,269 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-07-23 13:41:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 13:41:50,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 13:41:51,035 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 13:41:51,036 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:41:51 BoogieIcfgContainer [2018-07-23 13:41:51,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 13:41:51,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 13:41:51,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 13:41:51,041 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 13:41:51,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:41:50" (1/2) ... [2018-07-23 13:41:51,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cf19db and model type pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:41:51, skipping insertion in model container [2018-07-23 13:41:51,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:41:51" (2/2) ... [2018-07-23 13:41:51,045 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl [2018-07-23 13:41:51,053 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 13:41:51,061 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 13:41:51,107 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 13:41:51,108 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 13:41:51,108 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 13:41:51,108 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 13:41:51,109 INFO L376 AbstractCegarLoop]: Backedges is CANONICAL [2018-07-23 13:41:51,109 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 13:41:51,109 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 13:41:51,109 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 13:41:51,109 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 13:41:51,124 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 13:41:51,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 13:41:51,132 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:51,133 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 13:41:51,133 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:51,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1001234, now seen corresponding path program 1 times [2018-07-23 13:41:51,145 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:51,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:51,300 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:41:51,302 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 13:41:51,304 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:51,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:51,305 INFO L185 omatonBuilderFactory]: Interpolants [9#true, 10#false, 11#(and (<= ~r1 0) (= (+ ~mode1 256) 0)), 12#(not (= 0 ULTIMATE.start_assert_~arg))] [2018-07-23 13:41:51,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:51,307 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:41:51,325 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:41:51,326 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:41:51,330 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 13:41:51,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:51,437 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-23 13:41:51,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:41:51,442 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 13:41:51,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:51,458 INFO L225 Difference]: With dead ends: 10 [2018-07-23 13:41:51,458 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 13:41:51,464 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:41:51,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 13:41:51,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 13:41:51,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 13:41:51,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 13:41:51,502 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 13:41:51,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:51,503 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 13:41:51,503 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:41:51,503 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 13:41:51,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 13:41:51,504 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:41:51,504 INFO L357 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 13:41:51,504 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:41:51,505 INFO L82 PathProgramCache]: Analyzing trace with hash 962148267, now seen corresponding path program 1 times [2018-07-23 13:41:51,505 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:41:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:41:51,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:51,609 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:41:51,610 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 13:41:51,610 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:41:51,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:51,611 INFO L185 omatonBuilderFactory]: Interpolants [48#false, 49#(and (<= (+ ~mode3 257) 0) (= (+ ~mode4 256) 0)), 50#(and (= ~send3 ~p3_old) (<= 1 ~mode4) (not (= ~nomsg ~send3))), 47#true] [2018-07-23 13:41:51,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:41:51,613 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:41:51,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:41:51,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:41:51,614 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-23 13:41:51,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:41:51,642 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 13:41:51,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:41:51,648 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-23 13:41:51,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:41:51,649 INFO L225 Difference]: With dead ends: 8 [2018-07-23 13:41:51,649 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 13:41:51,650 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:41:51,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 13:41:51,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 13:41:51,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 13:41:51,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 13:41:51,651 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-07-23 13:41:51,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:41:51,652 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 13:41:51,652 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:41:51,652 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 13:41:51,652 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 13:41:51,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 13:41:51,718 INFO L421 ceAbstractionStarter]: For program point L267(lines 261 268) no Hoare annotation was computed. [2018-07-23 13:41:51,724 INFO L417 ceAbstractionStarter]: At program point L388(lines 388 389) the Hoare annotation is: false [2018-07-23 13:41:51,725 INFO L417 ceAbstractionStarter]: At program point L385(lines 244 385) the Hoare annotation is: (or (and (not (= 0 ULTIMATE.start_assert_~arg)) (= ~send3 ~p3_old) (<= 1 ~mode4) (not (= ~nomsg ~send3))) (and (<= ~r1 0) (<= (+ ~mode3 257) 0) (= (+ ~mode4 256) 0) (= (+ ~mode1 256) 0))) [2018-07-23 13:41:51,726 INFO L421 ceAbstractionStarter]: For program point L345(lines 345 353) no Hoare annotation was computed. [2018-07-23 13:41:51,726 INFO L421 ceAbstractionStarter]: For program point L373(lines 369 374) no Hoare annotation was computed. [2018-07-23 13:41:51,726 INFO L421 ceAbstractionStarter]: For program point L250(lines 250 262) no Hoare annotation was computed. [2018-07-23 13:41:51,726 INFO L417 ceAbstractionStarter]: At program point L377(lines 377 386) the Hoare annotation is: (and (not (= 0 ULTIMATE.start_assert_~arg)) (= ~send3 ~p3_old) (<= 1 ~mode4) (not (= ~nomsg ~send3))) [2018-07-23 13:41:51,727 INFO L421 ceAbstractionStarter]: For program point L331(lines 324 332) no Hoare annotation was computed. [2018-07-23 13:41:51,727 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 61 391) no Hoare annotation was computed. [2018-07-23 13:41:51,727 INFO L421 ceAbstractionStarter]: For program point L287(lines 280 288) no Hoare annotation was computed. [2018-07-23 13:41:51,727 INFO L421 ceAbstractionStarter]: For program point L363(lines 363 370) no Hoare annotation was computed. [2018-07-23 13:41:51,727 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 61 391) the Hoare annotation is: true [2018-07-23 13:41:51,727 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 61 391) the Hoare annotation is: false [2018-07-23 13:41:51,728 INFO L421 ceAbstractionStarter]: For program point L292(lines 292 302) no Hoare annotation was computed. [2018-07-23 13:41:51,728 INFO L421 ceAbstractionStarter]: For program point L272(lines 272 281) no Hoare annotation was computed. [2018-07-23 13:41:51,728 INFO L421 ceAbstractionStarter]: For program point L311(lines 301 312) no Hoare annotation was computed. [2018-07-23 13:41:51,728 INFO L421 ceAbstractionStarter]: For program point L356(lines 352 357) no Hoare annotation was computed. [2018-07-23 13:41:51,728 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startErr0AssertViolationASSERT(line 390) the Hoare annotation is: false [2018-07-23 13:41:51,728 INFO L421 ceAbstractionStarter]: For program point L316(lines 316 325) no Hoare annotation was computed. [2018-07-23 13:41:51,746 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:41:51 BoogieIcfgContainer [2018-07-23 13:41:51,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 13:41:51,749 INFO L168 Benchmark]: Toolchain (without parser) took 1653.55 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-07-23 13:41:51,751 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. [2018-07-23 13:41:51,752 INFO L168 Benchmark]: Boogie Preprocessor took 79.01 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. [2018-07-23 13:41:51,753 INFO L168 Benchmark]: RCFGBuilder took 860.00 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-23 13:41:51,757 INFO L168 Benchmark]: TraceAbstraction took 709.62 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-23 13:41:51,761 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 Preprocessor took 79.01 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 860.00 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 709.62 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 390]: 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: 377]: Loop Invariant Derived loop invariant: ((!(0 == assert_~arg) && ~send3 == ~p3_old) && 1 <= ~mode4) && !(~nomsg == ~send3) - InvariantResult [Line: 388]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 244]: Loop Invariant Derived loop invariant: (((!(0 == assert_~arg) && ~send3 == ~p3_old) && 1 <= ~mode4) && !(~nomsg == ~send3)) || (((~r1 <= 0 && ~mode3 + 257 <= 0) && ~mode4 + 256 == 0) && ~mode1 + 256 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 1 SDslu, 5 SDs, 0 SdLazy, 10 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 1/2 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 54 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/2 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/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_13-41-51-779.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_13-41-51-779.csv Received shutdown request...