java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_4.cil.c_14.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 21:26:24,912 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 21:26:24,914 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 21:26:24,931 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-09-26 21:26:24,963 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-26 21:26:24,984 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 21:26:24,985 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 21:26:24,987 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 21:26:24,987 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 21:26:24,988 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 21:26:24,988 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 21:26:24,988 INFO L133 SettingsManager]: * Use SBE=true [2018-09-26 21:26:24,989 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 21:26:24,989 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 21:26:24,989 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 21:26:24,989 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 21:26:24,989 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 21:26:24,990 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 21:26:24,990 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 21:26:24,990 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 21:26:24,990 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 21:26:24,992 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 21:26:24,992 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 21:26:24,992 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 21:26:24,992 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-26 21:26:24,992 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 21:26:24,993 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-26 21:26:24,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:26:24,993 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 21:26:24,993 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 21:26:24,994 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 21:26:24,994 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-26 21:26:24,994 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 21:26:24,994 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 21:26:24,994 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 21:26:25,055 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 21:26:25,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 21:26:25,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 21:26:25,077 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 21:26:25,078 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 21:26:25,079 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_4.cil.c_14.bpl [2018-09-26 21:26:25,079 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_4.cil.c_14.bpl' [2018-09-26 21:26:25,181 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 21:26:25,187 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 21:26:25,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 21:26:25,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 21:26:25,188 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 21:26:25,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:26:25" (1/1) ... [2018-09-26 21:26:25,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:26:25" (1/1) ... [2018-09-26 21:26:25,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 21:26:25,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 21:26:25,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 21:26:25,247 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 21:26:25,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:26:25" (1/1) ... [2018-09-26 21:26:25,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:26:25" (1/1) ... [2018-09-26 21:26:25,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:26:25" (1/1) ... [2018-09-26 21:26:25,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:26:25" (1/1) ... [2018-09-26 21:26:25,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:26:25" (1/1) ... [2018-09-26 21:26:25,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:26:25" (1/1) ... [2018-09-26 21:26:25,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:26:25" (1/1) ... [2018-09-26 21:26:25,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 21:26:25,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 21:26:25,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 21:26:25,297 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 21:26:25,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:26:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:26:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 21:26:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 21:26:26,101 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 21:26:26,102 INFO L202 PluginConnector]: Adding new model s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:26:26 BoogieIcfgContainer [2018-09-26 21:26:26,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 21:26:26,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 21:26:26,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 21:26:26,106 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 21:26:26,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:26:25" (1/2) ... [2018-09-26 21:26:26,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4b7967 and model type s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:26:26, skipping insertion in model container [2018-09-26 21:26:26,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:26:26" (2/2) ... [2018-09-26 21:26:26,110 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_4.cil.c_14.bpl [2018-09-26 21:26:26,120 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-26 21:26:26,129 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 21:26:26,176 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 21:26:26,177 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 21:26:26,177 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 21:26:26,177 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-26 21:26:26,177 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 21:26:26,177 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 21:26:26,178 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 21:26:26,178 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 21:26:26,178 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 21:26:26,194 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-09-26 21:26:26,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 21:26:26,201 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:26,202 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:26,204 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:26,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:26,210 INFO L82 PathProgramCache]: Analyzing trace with hash 212045975, now seen corresponding path program 1 times [2018-09-26 21:26:26,213 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:26,213 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:26,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:26,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:26,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:26,425 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 21:26:26,427 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:26,428 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:26:26,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:26:26,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:26:26,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:26,451 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2018-09-26 21:26:26,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:26,615 INFO L93 Difference]: Finished difference Result 27 states and 39 transitions. [2018-09-26 21:26:26,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:26:26,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-09-26 21:26:26,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:26,628 INFO L225 Difference]: With dead ends: 27 [2018-09-26 21:26:26,629 INFO L226 Difference]: Without dead ends: 14 [2018-09-26 21:26:26,633 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:26,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-09-26 21:26:26,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-09-26 21:26:26,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-26 21:26:26,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2018-09-26 21:26:26,674 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 19 transitions. Word has length 8 [2018-09-26 21:26:26,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:26,674 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 19 transitions. [2018-09-26 21:26:26,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:26:26,675 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2018-09-26 21:26:26,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 21:26:26,676 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:26,676 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:26,676 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:26,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:26,677 INFO L82 PathProgramCache]: Analyzing trace with hash -251001873, now seen corresponding path program 1 times [2018-09-26 21:26:26,677 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:26,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:26,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:26,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:26,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:26,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:26:26,772 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:26,772 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:26:26,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:26:26,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:26:26,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:26,774 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. Second operand 3 states. [2018-09-26 21:26:26,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:26,902 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2018-09-26 21:26:26,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:26:26,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-26 21:26:26,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:26,903 INFO L225 Difference]: With dead ends: 29 [2018-09-26 21:26:26,903 INFO L226 Difference]: Without dead ends: 18 [2018-09-26 21:26:26,905 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:26,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-26 21:26:26,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-09-26 21:26:26,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-26 21:26:26,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-09-26 21:26:26,910 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 11 [2018-09-26 21:26:26,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:26,910 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-09-26 21:26:26,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:26:26,911 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2018-09-26 21:26:26,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-26 21:26:26,912 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:26,912 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:26,912 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:26,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:26,913 INFO L82 PathProgramCache]: Analyzing trace with hash -129109843, now seen corresponding path program 1 times [2018-09-26 21:26:26,913 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:26,913 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:26,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:26,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:26,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:27,056 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-26 21:26:27,057 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:27,057 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:26:27,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:26:27,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:26:27,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:27,059 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 3 states. [2018-09-26 21:26:27,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:27,234 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2018-09-26 21:26:27,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:26:27,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-09-26 21:26:27,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:27,240 INFO L225 Difference]: With dead ends: 39 [2018-09-26 21:26:27,240 INFO L226 Difference]: Without dead ends: 24 [2018-09-26 21:26:27,241 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:27,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-09-26 21:26:27,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-09-26 21:26:27,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-09-26 21:26:27,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2018-09-26 21:26:27,252 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 15 [2018-09-26 21:26:27,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:27,253 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2018-09-26 21:26:27,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:26:27,254 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2018-09-26 21:26:27,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-26 21:26:27,255 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:27,255 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:27,256 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:27,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:27,256 INFO L82 PathProgramCache]: Analyzing trace with hash 817687483, now seen corresponding path program 1 times [2018-09-26 21:26:27,257 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:27,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:27,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:27,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:27,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:27,440 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-09-26 21:26:27,440 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:27,441 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:26:27,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:26:27,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:26:27,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:27,442 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 3 states. [2018-09-26 21:26:27,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:27,514 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2018-09-26 21:26:27,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:26:27,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-09-26 21:26:27,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:27,517 INFO L225 Difference]: With dead ends: 35 [2018-09-26 21:26:27,518 INFO L226 Difference]: Without dead ends: 33 [2018-09-26 21:26:27,519 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:27,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-09-26 21:26:27,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2018-09-26 21:26:27,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-09-26 21:26:27,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2018-09-26 21:26:27,539 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 23 [2018-09-26 21:26:27,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:27,540 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2018-09-26 21:26:27,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:26:27,541 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2018-09-26 21:26:27,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-26 21:26:27,542 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:27,542 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:27,543 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:27,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:27,544 INFO L82 PathProgramCache]: Analyzing trace with hash 424660473, now seen corresponding path program 1 times [2018-09-26 21:26:27,544 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:27,545 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:27,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:27,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:27,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:27,661 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-26 21:26:27,661 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:27,661 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:26:27,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:26:27,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:26:27,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:27,663 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand 3 states. [2018-09-26 21:26:27,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:27,726 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2018-09-26 21:26:27,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:26:27,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-09-26 21:26:27,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:27,727 INFO L225 Difference]: With dead ends: 62 [2018-09-26 21:26:27,727 INFO L226 Difference]: Without dead ends: 33 [2018-09-26 21:26:27,728 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:27,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-09-26 21:26:27,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-09-26 21:26:27,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-09-26 21:26:27,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2018-09-26 21:26:27,736 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 23 [2018-09-26 21:26:27,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:27,736 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2018-09-26 21:26:27,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:26:27,737 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2018-09-26 21:26:27,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-26 21:26:27,738 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:27,738 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:27,738 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:27,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:27,739 INFO L82 PathProgramCache]: Analyzing trace with hash 944888583, now seen corresponding path program 1 times [2018-09-26 21:26:27,739 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:27,739 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:27,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:27,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:27,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:27,832 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-09-26 21:26:27,833 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:27,833 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:26:27,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:26:27,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:26:27,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:27,834 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand 3 states. [2018-09-26 21:26:27,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:27,948 INFO L93 Difference]: Finished difference Result 75 states and 101 transitions. [2018-09-26 21:26:27,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:26:27,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-09-26 21:26:27,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:27,951 INFO L225 Difference]: With dead ends: 75 [2018-09-26 21:26:27,952 INFO L226 Difference]: Without dead ends: 45 [2018-09-26 21:26:27,952 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:27,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-09-26 21:26:27,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-09-26 21:26:27,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-09-26 21:26:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2018-09-26 21:26:27,962 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 31 [2018-09-26 21:26:27,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:27,962 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2018-09-26 21:26:27,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:26:27,962 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2018-09-26 21:26:27,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-26 21:26:27,964 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:27,964 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:27,964 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:27,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:27,965 INFO L82 PathProgramCache]: Analyzing trace with hash -680849109, now seen corresponding path program 1 times [2018-09-26 21:26:27,965 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:27,965 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:27,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:27,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:27,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:28,048 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-09-26 21:26:28,049 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:28,049 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:26:28,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:26:28,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:26:28,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:28,050 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand 3 states. [2018-09-26 21:26:28,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:28,116 INFO L93 Difference]: Finished difference Result 97 states and 121 transitions. [2018-09-26 21:26:28,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:26:28,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-09-26 21:26:28,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:28,118 INFO L225 Difference]: With dead ends: 97 [2018-09-26 21:26:28,118 INFO L226 Difference]: Without dead ends: 55 [2018-09-26 21:26:28,119 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:28,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-09-26 21:26:28,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-09-26 21:26:28,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-09-26 21:26:28,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2018-09-26 21:26:28,129 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 38 [2018-09-26 21:26:28,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:28,129 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2018-09-26 21:26:28,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:26:28,130 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2018-09-26 21:26:28,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-26 21:26:28,131 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:28,131 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:28,132 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:28,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:28,132 INFO L82 PathProgramCache]: Analyzing trace with hash -625573959, now seen corresponding path program 1 times [2018-09-26 21:26:28,132 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:28,132 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:28,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:28,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:28,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:28,227 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 66 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-09-26 21:26:28,227 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:26:28,228 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:26:28,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:28,347 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:26:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 66 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-09-26 21:26:28,427 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:26:28,427 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-09-26 21:26:28,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 21:26:28,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 21:26:28,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 21:26:28,430 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand 4 states. [2018-09-26 21:26:28,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:28,871 INFO L93 Difference]: Finished difference Result 104 states and 117 transitions. [2018-09-26 21:26:28,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 21:26:28,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-09-26 21:26:28,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:28,872 INFO L225 Difference]: With dead ends: 104 [2018-09-26 21:26:28,872 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 21:26:28,873 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-26 21:26:28,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 21:26:28,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 21:26:28,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 21:26:28,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 21:26:28,874 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2018-09-26 21:26:28,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:28,874 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 21:26:28,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 21:26:28,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 21:26:28,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 21:26:28,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 21:26:29,691 WARN L178 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 21 [2018-09-26 21:26:30,201 WARN L178 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 24 [2018-09-26 21:26:30,414 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 24 [2018-09-26 21:26:30,516 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 18 [2018-09-26 21:26:30,611 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 391) no Hoare annotation was computed. [2018-09-26 21:26:30,612 INFO L422 ceAbstractionStarter]: At program point L349(lines 349 364) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) [2018-09-26 21:26:30,612 INFO L422 ceAbstractionStarter]: At program point L374(lines 374 389) the Hoare annotation is: false [2018-09-26 21:26:30,612 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 390) no Hoare annotation was computed. [2018-09-26 21:26:30,613 INFO L422 ceAbstractionStarter]: At program point L339(lines 339 350) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~5 3))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) (and .cse0 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~5)) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~5 8640) .cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~5 8640)))) [2018-09-26 21:26:30,613 INFO L422 ceAbstractionStarter]: At program point L368(lines 363 383) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~5 3) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) [2018-09-26 21:26:30,613 INFO L422 ceAbstractionStarter]: At program point L271(lines 271 287) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~5 3))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~5 8464)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~5 8496)) (and .cse0 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~5)) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~5 8640) .cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~5 8640)))) [2018-09-26 21:26:30,614 INFO L422 ceAbstractionStarter]: At program point L321(lines 321 329) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~5 3))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) (and .cse0 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~5)) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~5 8640) .cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~5 8640)))) [2018-09-26 21:26:30,614 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 391) no Hoare annotation was computed. [2018-09-26 21:26:30,614 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 391) no Hoare annotation was computed. [2018-09-26 21:26:30,615 INFO L422 ceAbstractionStarter]: At program point L295(lines 258 295) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~5 3))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~5 8464)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~5 8496)) (and .cse0 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~5)) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~5 8640) .cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~5 8640)))) [2018-09-26 21:26:30,615 INFO L422 ceAbstractionStarter]: At program point L357(lines 357 375) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~5 3) (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~5)) [2018-09-26 21:26:30,615 INFO L422 ceAbstractionStarter]: At program point L388(lines 286 388) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~5 3))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~5 8496)) (and .cse0 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~5)) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~5 8640) .cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~5 8640)))) [2018-09-26 21:26:30,616 INFO L422 ceAbstractionStarter]: At program point L291(lines 291 310) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~5 3))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~5 2) (= ULTIMATE.start_ssl3_accept_~s__state~5 8656)) (and .cse0 (= ULTIMATE.start_ssl3_accept_~s__state~5 8496)) (and .cse0 (<= 8672 ULTIMATE.start_ssl3_accept_~s__state~5)) (and (<= ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~5 8640) .cse0 (<= ULTIMATE.start_ssl3_accept_~s__state~5 8640)))) [2018-09-26 21:26:30,630 INFO L202 PluginConnector]: Adding new model s3_srvr_4.cil.c_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:26:30 BoogieIcfgContainer [2018-09-26 21:26:30,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 21:26:30,631 INFO L168 Benchmark]: Toolchain (without parser) took 5449.16 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: 224.7 MB). Peak memory consumption was 224.7 MB. Max. memory is 7.1 GB. [2018-09-26 21:26:30,632 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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 21:26:30,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.07 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 21:26:30,633 INFO L168 Benchmark]: Boogie Preprocessor took 49.62 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 21:26:30,634 INFO L168 Benchmark]: RCFGBuilder took 805.27 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. [2018-09-26 21:26:30,635 INFO L168 Benchmark]: TraceAbstraction took 4527.17 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: 193.0 MB). Peak memory consumption was 193.0 MB. Max. memory is 7.1 GB. [2018-09-26 21:26:30,639 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 0.20 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 58.07 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 49.62 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 805.27 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 4527.17 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: 193.0 MB). Peak memory consumption was 193.0 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: 271]: Loop Invariant Derived loop invariant: ((((ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656) || (ssl3_accept_~blastFlag~5 <= 3 && ssl3_accept_~s__state~5 == 8464)) || (ssl3_accept_~blastFlag~5 <= 3 && ssl3_accept_~s__state~5 == 8496)) || (ssl3_accept_~blastFlag~5 <= 3 && 8672 <= ssl3_accept_~s__state~5)) || ((ssl3_accept_~s__s3__tmp__next_state___0~5 <= 8640 && ssl3_accept_~blastFlag~5 <= 3) && ssl3_accept_~s__state~5 <= 8640) - InvariantResult [Line: 286]: Loop Invariant Derived loop invariant: (((ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656) || (ssl3_accept_~blastFlag~5 <= 3 && ssl3_accept_~s__state~5 == 8496)) || (ssl3_accept_~blastFlag~5 <= 3 && 8672 <= ssl3_accept_~s__state~5)) || ((ssl3_accept_~s__s3__tmp__next_state___0~5 <= 8640 && ssl3_accept_~blastFlag~5 <= 3) && ssl3_accept_~s__state~5 <= 8640) - InvariantResult [Line: 339]: Loop Invariant Derived loop invariant: ((ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656) || (ssl3_accept_~blastFlag~5 <= 3 && 8672 <= ssl3_accept_~s__state~5)) || ((ssl3_accept_~s__s3__tmp__next_state___0~5 <= 8640 && ssl3_accept_~blastFlag~5 <= 3) && ssl3_accept_~s__state~5 <= 8640) - InvariantResult [Line: 349]: Loop Invariant Derived loop invariant: ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656 - InvariantResult [Line: 258]: Loop Invariant Derived loop invariant: ((((ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656) || (ssl3_accept_~blastFlag~5 <= 3 && ssl3_accept_~s__state~5 == 8464)) || (ssl3_accept_~blastFlag~5 <= 3 && ssl3_accept_~s__state~5 == 8496)) || (ssl3_accept_~blastFlag~5 <= 3 && 8672 <= ssl3_accept_~s__state~5)) || ((ssl3_accept_~s__s3__tmp__next_state___0~5 <= 8640 && ssl3_accept_~blastFlag~5 <= 3) && ssl3_accept_~s__state~5 <= 8640) - InvariantResult [Line: 321]: Loop Invariant Derived loop invariant: ((ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656) || (ssl3_accept_~blastFlag~5 <= 3 && 8672 <= ssl3_accept_~s__state~5)) || ((ssl3_accept_~s__s3__tmp__next_state___0~5 <= 8640 && ssl3_accept_~blastFlag~5 <= 3) && ssl3_accept_~s__state~5 <= 8640) - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 291]: Loop Invariant Derived loop invariant: (((ssl3_accept_~blastFlag~5 == 2 && ssl3_accept_~s__state~5 == 8656) || (ssl3_accept_~blastFlag~5 <= 3 && ssl3_accept_~s__state~5 == 8496)) || (ssl3_accept_~blastFlag~5 <= 3 && 8672 <= ssl3_accept_~s__state~5)) || ((ssl3_accept_~s__s3__tmp__next_state___0~5 <= 8640 && ssl3_accept_~blastFlag~5 <= 3) && ssl3_accept_~s__state~5 <= 8640) - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: ssl3_accept_~blastFlag~5 <= 3 && ssl3_accept_~s__state~5 == 8656 - InvariantResult [Line: 357]: Loop Invariant Derived loop invariant: ssl3_accept_~blastFlag~5 <= 3 && 8672 <= ssl3_accept_~s__state~5 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 8 OverallIterations, 7 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 1.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 125 SDtfs, 15 SDslu, 52 SDs, 0 SdLazy, 119 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=7, 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, 8 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 61 NumberOfFragments, 214 HoareAnnotationTreeSize, 10 FomulaSimplifications, 304 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 10624 SizeOfPredicates, 2 NumberOfNonLiveVariables, 381 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 327/337 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/s3_srvr_4.cil.c_14.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_21-26-30-656.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_4.cil.c_14.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_21-26-30-656.csv Received shutdown request...