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 -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.3.ufo.BOUNDED-6.pals.c_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:19:00,123 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:19:00,126 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:19:00,138 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:19:00,138 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:19:00,140 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:19:00,141 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:19:00,143 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:19:00,145 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:19:00,146 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:19:00,147 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 08:19:00,147 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 08:19:00,148 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 08:19:00,149 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 08:19:00,151 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 08:19:00,152 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 08:19:00,153 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 08:19:00,155 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 08:19:00,157 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 08:19:00,159 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 08:19:00,161 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 08:19:00,162 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 08:19:00,165 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 08:19:00,165 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 08:19:00,166 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 08:19:00,167 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 08:19:00,168 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 08:19:00,169 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 08:19:00,170 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 08:19:00,171 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 08:19:00,172 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 08:19:00,172 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-26 08:19:00,175 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-09-26 08:19:00,189 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:19:00,189 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:19:00,192 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 08:19:00,193 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 08:19:00,193 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:19:00,193 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-09-26 08:19:00,193 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 08:19:00,193 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:19:00,263 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:19:00,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:19:00,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:19:00,284 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:19:00,284 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:19:00,285 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl [2018-09-26 08:19:00,285 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl' [2018-09-26 08:19:00,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:19:00,397 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:19:00,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:19:00,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:19:00,398 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:19:00,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:00" (1/1) ... [2018-09-26 08:19:00,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:00" (1/1) ... [2018-09-26 08:19:00,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:19:00,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:19:00,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:19:00,450 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:19:00,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:00" (1/1) ... [2018-09-26 08:19:00,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:00" (1/1) ... [2018-09-26 08:19:00,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:00" (1/1) ... [2018-09-26 08:19:00,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:00" (1/1) ... [2018-09-26 08:19:00,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:00" (1/1) ... [2018-09-26 08:19:00,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:00" (1/1) ... [2018-09-26 08:19:00,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:00" (1/1) ... [2018-09-26 08:19:00,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:19:00,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:19:00,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:19:00,486 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:19:00,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:00" (1/1) ... [2018-09-26 08:19:00,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 08:19:00,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 08:19:01,182 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 08:19:01,183 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:19:01 BoogieIcfgContainer [2018-09-26 08:19:01,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:19:01,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:19:01,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:19:01,191 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:19:01,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:00" (1/2) ... [2018-09-26 08:19:01,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5b6f1 and model type pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:19:01, skipping insertion in model container [2018-09-26 08:19:01,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:19:01" (2/2) ... [2018-09-26 08:19:01,195 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl [2018-09-26 08:19:01,206 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:19:01,215 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:19:01,264 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:19:01,266 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:19:01,266 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:19:01,266 INFO L383 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-09-26 08:19:01,266 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:19:01,266 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:19:01,267 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:19:01,267 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:19:01,267 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:19:01,282 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-26 08:19:01,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 08:19:01,291 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:01,291 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 08:19:01,293 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:01,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:01,299 INFO L82 PathProgramCache]: Analyzing trace with hash 979518, now seen corresponding path program 1 times [2018-09-26 08:19:01,305 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:01,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:19:01,516 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:19:01,516 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 08:19:01,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:19:01,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:19:01,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:19:01,541 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-09-26 08:19:01,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:01,614 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-09-26 08:19:01,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:19:01,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-09-26 08:19:01,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:01,647 INFO L225 Difference]: With dead ends: 11 [2018-09-26 08:19:01,648 INFO L226 Difference]: Without dead ends: 8 [2018-09-26 08:19:01,654 INFO L605 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 [2018-09-26 08:19:01,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-26 08:19:01,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-09-26 08:19:01,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 08:19:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 08:19:01,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 08:19:01,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:01,707 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 08:19:01,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:19:01,707 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 08:19:01,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 08:19:01,708 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:01,708 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 08:19:01,708 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:01,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:01,709 INFO L82 PathProgramCache]: Analyzing trace with hash 941392015, now seen corresponding path program 1 times [2018-09-26 08:19:01,709 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:01,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:19:01,906 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:19:01,906 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-09-26 08:19:01,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:19:01,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:19:01,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:19:01,910 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-09-26 08:19:01,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:01,939 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-09-26 08:19:01,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:19:01,943 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-09-26 08:19:01,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:01,944 INFO L225 Difference]: With dead ends: 8 [2018-09-26 08:19:01,944 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 08:19:01,945 INFO L605 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 [2018-09-26 08:19:01,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 08:19:01,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 08:19:01,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 08:19:01,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 08:19:01,947 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-09-26 08:19:01,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:01,947 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 08:19:01,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:19:01,948 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 08:19:01,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 08:19:01,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 08:19:02,024 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 57 315) the Hoare annotation is: false [2018-09-26 08:19:02,025 INFO L426 ceAbstractionStarter]: For program point L252(lines 252 261) no Hoare annotation was computed. [2018-09-26 08:19:02,026 INFO L422 ceAbstractionStarter]: At program point L312(lines 201 312) the Hoare annotation is: (or (and (<= ~r1 0) (<= 0 ~send1) (= ~mode1 (* 256 (div ~mode1 256))) (= ~mode2 (* 256 (div ~mode2 256))) (<= ~send1 127) (= 0 (+ ~nomsg 1))) (and (not (= ~p1_old ~nomsg)) (<= 1 ~mode2) (<= ~mode2 1))) [2018-09-26 08:19:02,026 INFO L426 ceAbstractionStarter]: For program point L279(lines 279 286) no Hoare annotation was computed. [2018-09-26 08:19:02,026 INFO L422 ceAbstractionStarter]: At program point L306(lines 306 313) the Hoare annotation is: false [2018-09-26 08:19:02,027 INFO L422 ceAbstractionStarter]: At program point L300(lines 300 307) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (<= ULTIMATE.start_assert_~arg 1) (<= 1 ~mode2) (<= ~mode2 1) (<= 1 ULTIMATE.start_assert_~arg)) [2018-09-26 08:19:02,027 INFO L426 ceAbstractionStarter]: For program point L267(lines 260 268) no Hoare annotation was computed. [2018-09-26 08:19:02,027 INFO L426 ceAbstractionStarter]: For program point L232(lines 232 242) no Hoare annotation was computed. [2018-09-26 08:19:02,027 INFO L426 ceAbstractionStarter]: For program point L290(lines 285 291) no Hoare annotation was computed. [2018-09-26 08:19:02,027 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 57 315) the Hoare annotation is: true [2018-09-26 08:19:02,028 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 57 315) no Hoare annotation was computed. [2018-09-26 08:19:02,028 INFO L426 ceAbstractionStarter]: For program point L247(lines 241 248) no Hoare annotation was computed. [2018-09-26 08:19:02,028 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 314) the Hoare annotation is: false [2018-09-26 08:19:02,028 INFO L426 ceAbstractionStarter]: For program point L208(lines 208 220) no Hoare annotation was computed. [2018-09-26 08:19:02,029 INFO L426 ceAbstractionStarter]: For program point L227(lines 219 228) no Hoare annotation was computed. [2018-09-26 08:19:02,044 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:19:02 BoogieIcfgContainer [2018-09-26 08:19:02,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:19:02,045 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. [2018-09-26 08:19:02,048 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 08:19:02,049 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 08:19:02,050 INFO L168 Benchmark]: Boogie Preprocessor took 35.37 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 08:19:02,050 INFO L168 Benchmark]: RCFGBuilder took 697.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 08:19:02,051 INFO L168 Benchmark]: TraceAbstraction took 859.77 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-26 08:19:02,056 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 0.23 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 51.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.37 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 697.98 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 859.77 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 314]: 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: 201]: Loop Invariant Derived loop invariant: (((((~r1 <= 0 && 0 <= ~send1) && ~mode1 == 256 * (~mode1 / 256)) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && 0 == ~nomsg + 1) || ((!(~p1_old == ~nomsg) && 1 <= ~mode2) && ~mode2 <= 1) - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: (((!(~p1_old == ~nomsg) && assert_~arg <= 1) && 1 <= ~mode2) && ~mode2 <= 1) && 1 <= assert_~arg - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 1 SDslu, 5 SDs, 0 SdLazy, 11 SolverSat, 0 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=1, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 62 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 307 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.3.ufo.BOUNDED-6.pals.c_9.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_08-19-02-070.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_08-19-02-070.csv Received shutdown request...