java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 08:49:12,191 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 08:49:12,193 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 08:49:12,206 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 08:49:12,206 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 08:49:12,207 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 08:49:12,208 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 08:49:12,210 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 08:49:12,212 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 08:49:12,213 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 08:49:12,213 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 08:49:12,214 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 08:49:12,215 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 08:49:12,216 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 08:49:12,217 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 08:49:12,218 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 08:49:12,219 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 08:49:12,221 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 08:49:12,223 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 08:49:12,224 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 08:49:12,225 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 08:49:12,226 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 08:49:12,229 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 08:49:12,229 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 08:49:12,229 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 08:49:12,230 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 08:49:12,231 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 08:49:12,232 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 08:49:12,233 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 08:49:12,234 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 08:49:12,234 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 08:49:12,235 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-25 08:49:12,238 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-07-25 08:49:12,251 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 08:49:12,252 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 08:49:12,253 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 08:49:12,253 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 08:49:12,254 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 08:49:12,254 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-25 08:49:12,254 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 08:49:12,254 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 08:49:12,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 08:49:12,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 08:49:12,325 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 08:49:12,327 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 08:49:12,327 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 08:49:12,328 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl [2018-07-25 08:49:12,328 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl' [2018-07-25 08:49:12,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 08:49:12,402 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 08:49:12,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 08:49:12,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 08:49:12,403 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 08:49:12,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:12" (1/1) ... [2018-07-25 08:49:12,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:12" (1/1) ... [2018-07-25 08:49:12,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 08:49:12,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 08:49:12,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 08:49:12,452 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 08:49:12,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:12" (1/1) ... [2018-07-25 08:49:12,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:12" (1/1) ... [2018-07-25 08:49:12,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:12" (1/1) ... [2018-07-25 08:49:12,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:12" (1/1) ... [2018-07-25 08:49:12,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:12" (1/1) ... [2018-07-25 08:49:12,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:12" (1/1) ... [2018-07-25 08:49:12,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:12" (1/1) ... [2018-07-25 08:49:12,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 08:49:12,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 08:49:12,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 08:49:12,489 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 08:49:12,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:12" (1/1) ... [2018-07-25 08:49:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 08:49:12,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 08:49:13,486 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 08:49:13,487 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:49:13 BoogieIcfgContainer [2018-07-25 08:49:13,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 08:49:13,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 08:49:13,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 08:49:13,495 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 08:49:13,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:12" (1/2) ... [2018-07-25 08:49:13,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e901e48 and model type pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 08:49:13, skipping insertion in model container [2018-07-25 08:49:13,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:49:13" (2/2) ... [2018-07-25 08:49:13,499 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl [2018-07-25 08:49:13,509 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-25 08:49:13,519 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 08:49:13,559 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 08:49:13,560 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 08:49:13,560 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 08:49:13,560 INFO L376 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-25 08:49:13,560 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 08:49:13,561 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 08:49:13,561 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 08:49:13,561 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 08:49:13,561 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 08:49:13,574 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 08:49:13,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 08:49:13,582 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:13,583 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 08:49:13,584 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:13,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1001172, now seen corresponding path program 1 times [2018-07-25 08:49:13,596 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:13,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:49:13,790 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:49:13,791 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 08:49:13,796 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:49:13,815 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:49:13,816 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:49:13,820 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-25 08:49:13,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:13,907 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-07-25 08:49:13,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:49:13,909 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-25 08:49:13,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:13,921 INFO L225 Difference]: With dead ends: 11 [2018-07-25 08:49:13,921 INFO L226 Difference]: Without dead ends: 8 [2018-07-25 08:49:13,925 INFO L574 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 [2018-07-25 08:49:13,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-25 08:49:13,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-07-25 08:49:13,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 08:49:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-25 08:49:13,958 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-25 08:49:13,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:13,959 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-25 08:49:13,959 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:49:13,959 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-25 08:49:13,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:49:13,960 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:13,960 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 08:49:13,960 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:13,961 INFO L82 PathProgramCache]: Analyzing trace with hash 962207787, now seen corresponding path program 1 times [2018-07-25 08:49:13,961 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:14,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:49:14,085 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:49:14,085 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-25 08:49:14,088 INFO L451 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-25 08:49:14,088 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-25 08:49:14,088 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 08:49:14,089 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2018-07-25 08:49:14,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:14,167 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-07-25 08:49:14,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 08:49:14,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2018-07-25 08:49:14,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:14,169 INFO L225 Difference]: With dead ends: 12 [2018-07-25 08:49:14,169 INFO L226 Difference]: Without dead ends: 10 [2018-07-25 08:49:14,170 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-25 08:49:14,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-25 08:49:14,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-07-25 08:49:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-25 08:49:14,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-25 08:49:14,174 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-07-25 08:49:14,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:14,175 INFO L472 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-25 08:49:14,175 INFO L473 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-25 08:49:14,175 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-25 08:49:14,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 08:49:14,176 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:14,176 INFO L354 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-07-25 08:49:14,176 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:14,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1263796162, now seen corresponding path program 2 times [2018-07-25 08:49:14,177 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:14,338 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:49:14,340 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:49:14,341 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-25 08:49:14,341 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 08:49:14,342 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 08:49:14,342 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-25 08:49:14,343 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-07-25 08:49:14,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:14,466 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-07-25 08:49:14,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-25 08:49:14,466 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-07-25 08:49:14,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:14,467 INFO L225 Difference]: With dead ends: 14 [2018-07-25 08:49:14,467 INFO L226 Difference]: Without dead ends: 12 [2018-07-25 08:49:14,468 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:49:14,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-07-25 08:49:14,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2018-07-25 08:49:14,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-25 08:49:14,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-07-25 08:49:14,476 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-07-25 08:49:14,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:14,477 INFO L472 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-07-25 08:49:14,477 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 08:49:14,477 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-07-25 08:49:14,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-25 08:49:14,478 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:14,479 INFO L354 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-07-25 08:49:14,480 INFO L415 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:14,480 INFO L82 PathProgramCache]: Analyzing trace with hash -967551591, now seen corresponding path program 3 times [2018-07-25 08:49:14,480 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:14,723 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:49:14,724 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:49:14,725 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-07-25 08:49:14,725 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:49:14,726 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:49:14,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:49:14,727 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 8 states. [2018-07-25 08:49:14,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:14,827 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-07-25 08:49:14,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-25 08:49:14,827 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2018-07-25 08:49:14,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:14,828 INFO L225 Difference]: With dead ends: 16 [2018-07-25 08:49:14,829 INFO L226 Difference]: Without dead ends: 14 [2018-07-25 08:49:14,830 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-25 08:49:14,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-25 08:49:14,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-07-25 08:49:14,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-07-25 08:49:14,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-07-25 08:49:14,834 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-07-25 08:49:14,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:14,835 INFO L472 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-07-25 08:49:14,835 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:49:14,835 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-07-25 08:49:14,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-25 08:49:14,836 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:14,836 INFO L354 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1] [2018-07-25 08:49:14,837 INFO L415 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:14,837 INFO L82 PathProgramCache]: Analyzing trace with hash -2104061520, now seen corresponding path program 4 times [2018-07-25 08:49:14,837 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:14,956 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-25 08:49:14,956 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:49:14,957 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-07-25 08:49:14,957 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 08:49:14,957 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 08:49:14,958 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-25 08:49:14,958 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 8 states. [2018-07-25 08:49:15,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:15,021 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-07-25 08:49:15,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-25 08:49:15,022 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2018-07-25 08:49:15,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:15,023 INFO L225 Difference]: With dead ends: 17 [2018-07-25 08:49:15,023 INFO L226 Difference]: Without dead ends: 15 [2018-07-25 08:49:15,024 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-07-25 08:49:15,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-25 08:49:15,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-07-25 08:49:15,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-25 08:49:15,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-07-25 08:49:15,031 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-07-25 08:49:15,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:15,032 INFO L472 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-07-25 08:49:15,032 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 08:49:15,033 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-07-25 08:49:15,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-25 08:49:15,033 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:15,033 INFO L354 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1] [2018-07-25 08:49:15,034 INFO L415 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:15,034 INFO L82 PathProgramCache]: Analyzing trace with hash 926557191, now seen corresponding path program 5 times [2018-07-25 08:49:15,035 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:15,361 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:49:15,362 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:49:15,362 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-07-25 08:49:15,363 INFO L451 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-25 08:49:15,365 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-25 08:49:15,366 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-07-25 08:49:15,366 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 10 states. [2018-07-25 08:49:15,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:15,538 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-07-25 08:49:15,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-25 08:49:15,539 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2018-07-25 08:49:15,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:15,540 INFO L225 Difference]: With dead ends: 22 [2018-07-25 08:49:15,540 INFO L226 Difference]: Without dead ends: 20 [2018-07-25 08:49:15,541 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2018-07-25 08:49:15,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-07-25 08:49:15,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2018-07-25 08:49:15,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-07-25 08:49:15,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-07-25 08:49:15,550 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2018-07-25 08:49:15,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:15,550 INFO L472 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-07-25 08:49:15,551 INFO L473 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-25 08:49:15,551 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-07-25 08:49:15,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-25 08:49:15,552 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:15,553 INFO L354 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1] [2018-07-25 08:49:15,553 INFO L415 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:15,553 INFO L82 PathProgramCache]: Analyzing trace with hash 177671029, now seen corresponding path program 6 times [2018-07-25 08:49:15,554 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:15,701 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-07-25 08:49:15,702 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:49:15,702 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-25 08:49:15,702 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:49:15,703 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:49:15,703 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:49:15,703 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 4 states. [2018-07-25 08:49:15,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:15,729 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-07-25 08:49:15,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:49:15,731 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-07-25 08:49:15,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:15,732 INFO L225 Difference]: With dead ends: 19 [2018-07-25 08:49:15,732 INFO L226 Difference]: Without dead ends: 0 [2018-07-25 08:49:15,733 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:49:15,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-25 08:49:15,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-25 08:49:15,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-25 08:49:15,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-25 08:49:15,734 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-07-25 08:49:15,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:15,734 INFO L472 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-25 08:49:15,734 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:49:15,735 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-25 08:49:15,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-25 08:49:15,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-25 08:49:15,789 INFO L422 ceAbstractionStarter]: For program point L353(lines 347 354) no Hoare annotation was computed. [2018-07-25 08:49:15,790 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 467) the Hoare annotation is: false [2018-07-25 08:49:15,791 INFO L418 ceAbstractionStarter]: At program point L465(lines 310 465) the Hoare annotation is: (let ((.cse0 (<= ~r1 0)) (.cse1 (<= 0 ~r1))) (or (and (= ~mode1 1) .cse0 (= ~mode4 1) (= ULTIMATE.start_assert_~arg 1) .cse1 (not (= ~p3_old ~nomsg))) (and .cse0 (<= ~send3 127) (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) (= 0 (+ ~nomsg 1)) (= ~mode4 (* 256 (div ~mode4 256))) (<= 0 ~send3) .cse1))) [2018-07-25 08:49:15,791 INFO L422 ceAbstractionStarter]: For program point L432(lines 432 439) no Hoare annotation was computed. [2018-07-25 08:49:15,791 INFO L422 ceAbstractionStarter]: For program point L333(lines 327 334) no Hoare annotation was computed. [2018-07-25 08:49:15,791 INFO L422 ceAbstractionStarter]: For program point L358(lines 358 368) no Hoare annotation was computed. [2018-07-25 08:49:15,795 INFO L418 ceAbstractionStarter]: At program point L453(lines 453 460) the Hoare annotation is: (and (= ~mode1 1) (<= ~r1 0) (= ~mode4 1) (= ULTIMATE.start_assert_~arg 1) (<= 0 ~r1) (not (= ~p3_old ~nomsg))) [2018-07-25 08:49:15,795 INFO L422 ceAbstractionStarter]: For program point L416(lines 410 417) no Hoare annotation was computed. [2018-07-25 08:49:15,795 INFO L425 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 91 468) the Hoare annotation is: true [2018-07-25 08:49:15,796 INFO L422 ceAbstractionStarter]: For program point L317(lines 317 328) no Hoare annotation was computed. [2018-07-25 08:49:15,796 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 91 468) no Hoare annotation was computed. [2018-07-25 08:49:15,796 INFO L422 ceAbstractionStarter]: For program point L338(lines 338 348) no Hoare annotation was computed. [2018-07-25 08:49:15,796 INFO L422 ceAbstractionStarter]: For program point L396(lines 390 397) no Hoare annotation was computed. [2018-07-25 08:49:15,799 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 91 468) the Hoare annotation is: false [2018-07-25 08:49:15,799 INFO L422 ceAbstractionStarter]: For program point L376(lines 367 377) no Hoare annotation was computed. [2018-07-25 08:49:15,799 INFO L422 ceAbstractionStarter]: For program point L401(lines 401 411) no Hoare annotation was computed. [2018-07-25 08:49:15,799 INFO L418 ceAbstractionStarter]: At program point L459(lines 459 466) the Hoare annotation is: false [2018-07-25 08:49:15,799 INFO L422 ceAbstractionStarter]: For program point L381(lines 381 391) no Hoare annotation was computed. [2018-07-25 08:49:15,800 INFO L422 ceAbstractionStarter]: For program point L443(lines 438 444) no Hoare annotation was computed. [2018-07-25 08:49:15,816 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 08:49:15 BoogieIcfgContainer [2018-07-25 08:49:15,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 08:49:15,819 INFO L168 Benchmark]: Toolchain (without parser) took 3417.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 264.2 MB). Peak memory consumption was 264.2 MB. Max. memory is 7.1 GB. [2018-07-25 08:49:15,822 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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. [2018-07-25 08:49:15,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.30 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. [2018-07-25 08:49:15,824 INFO L168 Benchmark]: Boogie Preprocessor took 36.28 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. [2018-07-25 08:49:15,824 INFO L168 Benchmark]: RCFGBuilder took 999.10 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-25 08:49:15,825 INFO L168 Benchmark]: TraceAbstraction took 2326.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. [2018-07-25 08:49:15,832 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 0.22 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 48.30 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 36.28 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 999.10 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2326.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 467]: 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: 310]: Loop Invariant Derived loop invariant: (((((~mode1 == 1 && ~r1 <= 0) && ~mode4 == 1) && assert_~arg == 1) && 0 <= ~r1) && !(~p3_old == ~nomsg)) || (((((((~r1 <= 0 && ~send3 <= 127) && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && 0 == ~nomsg + 1) && ~mode4 == 256 * (~mode4 / 256)) && 0 <= ~send3) && 0 <= ~r1) - InvariantResult [Line: 459]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: ((((~mode1 == 1 && ~r1 <= 0) && ~mode4 == 1) && assert_~arg == 1) && 0 <= ~r1) && !(~p3_old == ~nomsg) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 7 OverallIterations, 8 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 31 SDslu, 48 SDs, 0 SdLazy, 129 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=6, 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, 7 MinimizatonAttempts, 5 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 84 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 5076 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 61/126 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.5.1.ufo.BOUNDED-10.pals.c_11.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_08-49-15-855.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c_11.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_08-49-15-855.csv Received shutdown request...