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_PUPT.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_2.BV.c.cil.c_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b2fde6a [2018-09-28 10:37:21,872 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-28 10:37:21,874 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-28 10:37:21,886 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-28 10:37:21,886 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-28 10:37:21,887 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-28 10:37:21,888 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-28 10:37:21,890 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-28 10:37:21,892 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-28 10:37:21,893 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-28 10:37:21,894 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-28 10:37:21,894 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-28 10:37:21,895 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-28 10:37:21,896 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-28 10:37:21,897 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-28 10:37:21,898 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-28 10:37:21,899 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-28 10:37:21,901 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-28 10:37:21,903 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-28 10:37:21,905 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-28 10:37:21,909 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-28 10:37:21,910 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-28 10:37:21,915 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-28 10:37:21,916 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-28 10:37:21,916 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-28 10:37:21,917 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-28 10:37:21,918 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-28 10:37:21,920 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-28 10:37:21,923 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-28 10:37:21,924 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-28 10:37:21,924 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-28 10:37:21,925 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-28 10:37:21,928 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-28 10:37:21,928 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-28 10:37:21,929 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-28 10:37:21,931 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-28 10:37:21,932 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf [2018-09-28 10:37:21,956 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-28 10:37:21,957 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-28 10:37:21,958 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-28 10:37:21,958 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-28 10:37:21,961 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-28 10:37:21,961 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-28 10:37:21,961 INFO L133 SettingsManager]: * Use SBE=true [2018-09-28 10:37:21,962 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-28 10:37:21,962 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-28 10:37:21,962 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-28 10:37:21,962 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-28 10:37:21,962 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-28 10:37:21,963 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-28 10:37:21,963 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-28 10:37:21,963 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-28 10:37:21,963 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-28 10:37:21,963 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-28 10:37:21,964 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-28 10:37:21,964 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-28 10:37:21,964 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-28 10:37:21,964 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-28 10:37:21,965 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-28 10:37:21,965 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-28 10:37:21,965 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-28 10:37:21,965 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-28 10:37:21,965 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-28 10:37:21,966 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-28 10:37:21,966 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-28 10:37:21,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-28 10:37:21,966 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-28 10:37:21,967 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-28 10:37:22,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-28 10:37:22,051 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-28 10:37:22,057 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-28 10:37:22,059 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-28 10:37:22,060 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-28 10:37:22,061 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_2.BV.c.cil.c_13.bpl [2018-09-28 10:37:22,061 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_2.BV.c.cil.c_13.bpl' [2018-09-28 10:37:22,171 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-28 10:37:22,174 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-28 10:37:22,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-28 10:37:22,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-28 10:37:22,175 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-28 10:37:22,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:37:22" (1/1) ... [2018-09-28 10:37:22,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:37:22" (1/1) ... [2018-09-28 10:37:22,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-28 10:37:22,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-28 10:37:22,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-28 10:37:22,224 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-28 10:37:22,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:37:22" (1/1) ... [2018-09-28 10:37:22,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:37:22" (1/1) ... [2018-09-28 10:37:22,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:37:22" (1/1) ... [2018-09-28 10:37:22,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:37:22" (1/1) ... [2018-09-28 10:37:22,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:37:22" (1/1) ... [2018-09-28 10:37:22,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:37:22" (1/1) ... [2018-09-28 10:37:22,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:37:22" (1/1) ... [2018-09-28 10:37:22,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-28 10:37:22,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-28 10:37:22,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-28 10:37:22,255 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-28 10:37:22,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:37:22" (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 [2018-09-28 10:37:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-28 10:37:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-28 10:37:22,981 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-28 10:37:22,981 INFO L202 PluginConnector]: Adding new model s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 10:37:22 BoogieIcfgContainer [2018-09-28 10:37:22,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-28 10:37:22,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-28 10:37:22,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-28 10:37:22,986 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-28 10:37:22,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:37:22" (1/2) ... [2018-09-28 10:37:22,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1b7ae2 and model type s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.09 10:37:22, skipping insertion in model container [2018-09-28 10:37:22,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 10:37:22" (2/2) ... [2018-09-28 10:37:22,989 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.BV.c.cil.c_13.bpl [2018-09-28 10:37:22,999 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-28 10:37:23,007 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-28 10:37:23,053 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-28 10:37:23,053 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-28 10:37:23,054 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-28 10:37:23,054 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-28 10:37:23,054 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-28 10:37:23,054 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-28 10:37:23,054 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-28 10:37:23,054 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-28 10:37:23,055 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-28 10:37:23,070 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-09-28 10:37:23,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-28 10:37:23,077 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:37:23,078 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-09-28 10:37:23,079 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:37:23,087 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-28 10:37:23,087 INFO L82 PathProgramCache]: Analyzing trace with hash 212232727, now seen corresponding path program 1 times [2018-09-28 10:37:23,089 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:37:23,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:37:23,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:37:23,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:37:23,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:37:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:37:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:37:23,316 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:37:23,317 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-28 10:37:23,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-28 10:37:23,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-28 10:37:23,337 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-28 10:37:23,338 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2018-09-28 10:37:23,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:37:23,703 INFO L93 Difference]: Finished difference Result 35 states and 52 transitions. [2018-09-28 10:37:23,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-28 10:37:23,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-09-28 10:37:23,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:37:23,719 INFO L225 Difference]: With dead ends: 35 [2018-09-28 10:37:23,719 INFO L226 Difference]: Without dead ends: 20 [2018-09-28 10:37:23,722 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-28 10:37:23,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-09-28 10:37:23,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-09-28 10:37:23,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-09-28 10:37:23,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2018-09-28 10:37:23,761 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 29 transitions. Word has length 8 [2018-09-28 10:37:23,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:37:23,762 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 29 transitions. [2018-09-28 10:37:23,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-28 10:37:23,762 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2018-09-28 10:37:23,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-28 10:37:23,763 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:37:23,763 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-28 10:37:23,763 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:37:23,764 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-28 10:37:23,764 INFO L82 PathProgramCache]: Analyzing trace with hash -250815121, now seen corresponding path program 1 times [2018-09-28 10:37:23,764 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:37:23,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:37:23,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:37:23,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:37:23,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:37:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:37:23,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:37:23,908 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:37:23,908 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-28 10:37:23,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-28 10:37:23,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-28 10:37:23,911 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-28 10:37:23,911 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. Second operand 3 states. [2018-09-28 10:37:24,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:37:24,151 INFO L93 Difference]: Finished difference Result 55 states and 83 transitions. [2018-09-28 10:37:24,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-28 10:37:24,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-28 10:37:24,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:37:24,154 INFO L225 Difference]: With dead ends: 55 [2018-09-28 10:37:24,154 INFO L226 Difference]: Without dead ends: 36 [2018-09-28 10:37:24,156 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-28 10:37:24,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-09-28 10:37:24,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-09-28 10:37:24,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-09-28 10:37:24,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 52 transitions. [2018-09-28 10:37:24,166 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 52 transitions. Word has length 11 [2018-09-28 10:37:24,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:37:24,167 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 52 transitions. [2018-09-28 10:37:24,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-28 10:37:24,167 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2018-09-28 10:37:24,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-28 10:37:24,168 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:37:24,168 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-28 10:37:24,169 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:37:24,169 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-28 10:37:24,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1416638413, now seen corresponding path program 1 times [2018-09-28 10:37:24,169 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:37:24,170 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:37:24,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:37:24,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:37:24,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:37:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:37:24,291 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-28 10:37:24,291 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:37:24,292 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-28 10:37:24,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-28 10:37:24,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-28 10:37:24,293 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-28 10:37:24,293 INFO L87 Difference]: Start difference. First operand 36 states and 52 transitions. Second operand 3 states. [2018-09-28 10:37:24,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:37:24,528 INFO L93 Difference]: Finished difference Result 79 states and 115 transitions. [2018-09-28 10:37:24,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-28 10:37:24,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-09-28 10:37:24,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:37:24,539 INFO L225 Difference]: With dead ends: 79 [2018-09-28 10:37:24,539 INFO L226 Difference]: Without dead ends: 44 [2018-09-28 10:37:24,540 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-28 10:37:24,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-09-28 10:37:24,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-09-28 10:37:24,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-28 10:37:24,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2018-09-28 10:37:24,554 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 19 [2018-09-28 10:37:24,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:37:24,555 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 60 transitions. [2018-09-28 10:37:24,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-28 10:37:24,555 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2018-09-28 10:37:24,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-28 10:37:24,556 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:37:24,557 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-28 10:37:24,557 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:37:24,557 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-28 10:37:24,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1648077349, now seen corresponding path program 1 times [2018-09-28 10:37:24,558 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:37:24,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:37:24,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:37:24,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:37:24,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:37:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:37:24,661 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-28 10:37:24,661 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:37:24,661 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-28 10:37:24,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-28 10:37:24,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-28 10:37:24,662 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-28 10:37:24,663 INFO L87 Difference]: Start difference. First operand 44 states and 60 transitions. Second operand 3 states. [2018-09-28 10:37:24,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:37:24,802 INFO L93 Difference]: Finished difference Result 97 states and 135 transitions. [2018-09-28 10:37:24,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-28 10:37:24,805 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-09-28 10:37:24,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:37:24,806 INFO L225 Difference]: With dead ends: 97 [2018-09-28 10:37:24,806 INFO L226 Difference]: Without dead ends: 54 [2018-09-28 10:37:24,807 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-28 10:37:24,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-09-28 10:37:24,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2018-09-28 10:37:24,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-28 10:37:24,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2018-09-28 10:37:24,830 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 22 [2018-09-28 10:37:24,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:37:24,832 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2018-09-28 10:37:24,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-28 10:37:24,832 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2018-09-28 10:37:24,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-28 10:37:24,834 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:37:24,834 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-28 10:37:24,834 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:37:24,835 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-28 10:37:24,835 INFO L82 PathProgramCache]: Analyzing trace with hash 494540487, now seen corresponding path program 1 times [2018-09-28 10:37:24,835 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:37:24,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:37:24,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:37:24,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:37:24,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:37:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:37:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-09-28 10:37:24,994 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:37:24,995 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-28 10:37:24,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-28 10:37:24,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-28 10:37:24,996 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-28 10:37:24,996 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand 3 states. [2018-09-28 10:37:25,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:37:25,491 INFO L93 Difference]: Finished difference Result 80 states and 102 transitions. [2018-09-28 10:37:25,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-28 10:37:25,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-09-28 10:37:25,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:37:25,493 INFO L225 Difference]: With dead ends: 80 [2018-09-28 10:37:25,493 INFO L226 Difference]: Without dead ends: 78 [2018-09-28 10:37:25,493 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-28 10:37:25,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-09-28 10:37:25,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 77. [2018-09-28 10:37:25,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-09-28 10:37:25,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2018-09-28 10:37:25,510 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 25 [2018-09-28 10:37:25,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:37:25,510 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2018-09-28 10:37:25,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-28 10:37:25,510 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2018-09-28 10:37:25,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-28 10:37:25,512 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:37:25,512 INFO L375 BasicCegarLoop]: trace histogram [8, 7, 7, 5, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-28 10:37:25,513 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:37:25,513 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-28 10:37:25,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1543638863, now seen corresponding path program 1 times [2018-09-28 10:37:25,513 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:37:25,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:37:25,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:37:25,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:37:25,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:37:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:37:25,622 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 89 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-09-28 10:37:25,623 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-28 10:37:25,623 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 [2018-09-28 10:37:25,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:37:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:37:25,765 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-28 10:37:25,884 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 89 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-09-28 10:37:25,906 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-28 10:37:25,907 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-09-28 10:37:25,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-28 10:37:25,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-28 10:37:25,908 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-28 10:37:25,908 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand 4 states. [2018-09-28 10:37:26,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:37:26,391 INFO L93 Difference]: Finished difference Result 168 states and 215 transitions. [2018-09-28 10:37:26,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-28 10:37:26,393 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-09-28 10:37:26,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:37:26,393 INFO L225 Difference]: With dead ends: 168 [2018-09-28 10:37:26,394 INFO L226 Difference]: Without dead ends: 0 [2018-09-28 10:37:26,395 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-28 10:37:26,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-28 10:37:26,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-28 10:37:26,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-28 10:37:26,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-28 10:37:26,396 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2018-09-28 10:37:26,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:37:26,397 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-28 10:37:26,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-28 10:37:26,397 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-28 10:37:26,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-28 10:37:26,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-28 10:37:26,692 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 17 [2018-09-28 10:37:27,393 WARN L178 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 17 [2018-09-28 10:37:27,667 WARN L178 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2018-09-28 10:37:27,747 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 379) no Hoare annotation was computed. [2018-09-28 10:37:27,747 INFO L422 ceAbstractionStarter]: At program point L283(lines 283 302) the Hoare annotation is: (and (not (= 8672 ULTIMATE.start_ssl3_accept_~s__state~4)) (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 1)) [2018-09-28 10:37:27,747 INFO L422 ceAbstractionStarter]: At program point L275(lines 238 275) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3))) (or (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse0 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4))) (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 1) (and (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~4) .cse0))) [2018-09-28 10:37:27,748 INFO L422 ceAbstractionStarter]: At program point L271(lines 271 284) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3))) (or (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse0 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4))) (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 1) (and (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~4) .cse0))) [2018-09-28 10:37:27,748 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 2 380) no Hoare annotation was computed. [2018-09-28 10:37:27,748 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 2 380) no Hoare annotation was computed. [2018-09-28 10:37:27,748 INFO L422 ceAbstractionStarter]: At program point L251(lines 251 267) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3))) (or (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse0 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4))) (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 1) (and (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~4) .cse0))) [2018-09-28 10:37:27,749 INFO L422 ceAbstractionStarter]: At program point L371(lines 371 378) the Hoare annotation is: false [2018-09-28 10:37:27,749 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 2 380) no Hoare annotation was computed. [2018-09-28 10:37:27,749 INFO L422 ceAbstractionStarter]: At program point L306(lines 301 325) the Hoare annotation is: (and (not (= 8672 ULTIMATE.start_ssl3_accept_~s__state~4)) (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) [2018-09-28 10:37:27,749 INFO L422 ceAbstractionStarter]: At program point L348(lines 348 368) the Hoare annotation is: (and (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~4) (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) [2018-09-28 10:37:27,749 INFO L422 ceAbstractionStarter]: At program point L377(lines 266 377) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3))) (or (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse0 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4))) (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 1) (and (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~4) .cse0))) [2018-09-28 10:37:27,750 INFO L422 ceAbstractionStarter]: At program point L340(lines 340 355) the Hoare annotation is: (and (not (= 8672 ULTIMATE.start_ssl3_accept_~s__state~4)) (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~4) (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) [2018-09-28 10:37:27,750 INFO L422 ceAbstractionStarter]: At program point L295(lines 295 314) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) (.cse1 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4)))) (or (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse0 .cse1) (and (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~4) .cse0) (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 1) .cse1))) [2018-09-28 10:37:27,750 INFO L422 ceAbstractionStarter]: At program point L357(lines 354 372) the Hoare annotation is: (and (not (= 8672 ULTIMATE.start_ssl3_accept_~s__state~4)) (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~4) (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) [2018-09-28 10:37:27,750 INFO L422 ceAbstractionStarter]: At program point L324(lines 324 341) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) (.cse1 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4)))) (or (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse0 .cse1) (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__state~4) .cse0) (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 1) .cse1))) [2018-09-28 10:37:27,764 INFO L202 PluginConnector]: Adding new model s3_srvr_2.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.09 10:37:27 BoogieIcfgContainer [2018-09-28 10:37:27,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-28 10:37:27,765 INFO L168 Benchmark]: Toolchain (without parser) took 5593.85 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: 245.8 MB). Peak memory consumption was 245.8 MB. Max. memory is 7.1 GB. [2018-09-28 10:37:27,767 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 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. [2018-09-28 10:37:27,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.31 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. [2018-09-28 10:37:27,768 INFO L168 Benchmark]: Boogie Preprocessor took 31.33 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. [2018-09-28 10:37:27,769 INFO L168 Benchmark]: RCFGBuilder took 726.52 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. [2018-09-28 10:37:27,770 INFO L168 Benchmark]: TraceAbstraction took 4781.75 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: 214.1 MB). Peak memory consumption was 214.1 MB. Max. memory is 7.1 GB. [2018-09-28 10:37:27,774 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 0.26 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 48.31 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 31.33 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 726.52 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 4781.75 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: 214.1 MB). Peak memory consumption was 214.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 379]: 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: (((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4)) || ssl3_accept_~blastFlag~4 <= 1) || (8656 <= ssl3_accept_~s__state~4 && ssl3_accept_~blastFlag~4 <= 3) - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: (((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4)) || (8640 <= ssl3_accept_~s__state~4 && ssl3_accept_~blastFlag~4 <= 3)) || (ssl3_accept_~blastFlag~4 <= 1 && !(8496 == ssl3_accept_~s__state~4)) - InvariantResult [Line: 340]: Loop Invariant Derived loop invariant: (!(8672 == ssl3_accept_~s__state~4) && 8656 <= ssl3_accept_~s__state~4) && ssl3_accept_~blastFlag~4 <= 3 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: (((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4)) || ssl3_accept_~blastFlag~4 <= 1) || (8656 <= ssl3_accept_~s__state~4 && ssl3_accept_~blastFlag~4 <= 3) - InvariantResult [Line: 371]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 251]: Loop Invariant Derived loop invariant: (((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4)) || ssl3_accept_~blastFlag~4 <= 1) || (8656 <= ssl3_accept_~s__state~4 && ssl3_accept_~blastFlag~4 <= 3) - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: !(8672 == ssl3_accept_~s__state~4) && ssl3_accept_~blastFlag~4 <= 1 - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: !(8672 == ssl3_accept_~s__state~4) && ssl3_accept_~blastFlag~4 <= 3 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: (((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4)) || (8656 <= ssl3_accept_~s__state~4 && ssl3_accept_~blastFlag~4 <= 3)) || (ssl3_accept_~blastFlag~4 <= 1 && !(8496 == ssl3_accept_~s__state~4)) - InvariantResult [Line: 348]: Loop Invariant Derived loop invariant: 8656 <= ssl3_accept_~s__state~4 && ssl3_accept_~blastFlag~4 <= 3 - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: (((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4)) || ssl3_accept_~blastFlag~4 <= 1) || (8656 <= ssl3_accept_~s__state~4 && ssl3_accept_~blastFlag~4 <= 3) - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: (!(8672 == ssl3_accept_~s__state~4) && 8656 <= ssl3_accept_~s__state~4) && ssl3_accept_~blastFlag~4 <= 3 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. SAFE Result, 4.7s OverallTime, 6 OverallIterations, 8 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 1.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 111 SDtfs, 48 SDslu, 52 SDs, 0 SdLazy, 101 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=5, 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 103 NumberOfFragments, 188 HoareAnnotationTreeSize, 12 FomulaSimplifications, 1189 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 12 FomulaSimplificationsInter, 163 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 9291 SizeOfPredicates, 2 NumberOfNonLiveVariables, 406 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 282/290 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_2.BV.c.cil.c_13.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-28_10-37-27-791.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_2.BV.c.cil.c_13.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-28_10-37-27-791.csv Received shutdown request...