java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 19:15:21,930 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 19:15:21,932 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 19:15:21,944 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-03 19:15:21,977 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf [2018-12-03 19:15:22,003 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 19:15:22,004 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 19:15:22,004 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 19:15:22,005 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 19:15:22,006 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 19:15:22,006 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 19:15:22,006 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 19:15:22,006 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 19:15:22,006 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 19:15:22,007 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2018-12-03 19:15:22,007 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 19:15:22,007 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 19:15:22,007 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 19:15:22,007 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 19:15:22,008 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 19:15:22,008 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 19:15:22,009 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 19:15:22,009 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 19:15:22,009 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 19:15:22,009 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 19:15:22,009 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 19:15:22,010 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 19:15:22,010 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 19:15:22,010 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 19:15:22,010 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 19:15:22,010 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 19:15:22,010 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 19:15:22,013 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 19:15:22,013 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 19:15:22,013 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 19:15:22,014 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 19:15:22,014 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 19:15:22,014 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 19:15:22,014 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 19:15:22,014 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 19:15:22,014 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 19:15:22,015 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 19:15:22,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 19:15:22,015 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 19:15:22,015 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 19:15:22,060 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 19:15:22,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 19:15:22,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 19:15:22,084 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 19:15:22,084 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 19:15:22,085 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl [2018-12-03 19:15:22,085 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl' [2018-12-03 19:15:22,155 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 19:15:22,157 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 19:15:22,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 19:15:22,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 19:15:22,158 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 19:15:22,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:15:22" (1/1) ... [2018-12-03 19:15:22,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:15:22" (1/1) ... [2018-12-03 19:15:22,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 19:15:22,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 19:15:22,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 19:15:22,197 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 19:15:22,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:15:22" (1/1) ... [2018-12-03 19:15:22,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:15:22" (1/1) ... [2018-12-03 19:15:22,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:15:22" (1/1) ... [2018-12-03 19:15:22,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:15:22" (1/1) ... [2018-12-03 19:15:22,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:15:22" (1/1) ... [2018-12-03 19:15:22,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:15:22" (1/1) ... [2018-12-03 19:15:22,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:15:22" (1/1) ... [2018-12-03 19:15:22,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 19:15:22,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 19:15:22,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 19:15:22,256 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 19:15:22,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:15:22" (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 [2018-12-03 19:15:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 19:15:22,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 19:15:23,009 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 19:15:23,010 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 19:15:23,010 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:15:23 BoogieIcfgContainer [2018-12-03 19:15:23,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 19:15:23,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 19:15:23,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 19:15:23,015 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 19:15:23,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 07:15:22" (1/2) ... [2018-12-03 19:15:23,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4456bb56 and model type pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:15:23, skipping insertion in model container [2018-12-03 19:15:23,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:15:23" (2/2) ... [2018-12-03 19:15:23,018 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl [2018-12-03 19:15:23,028 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 19:15:23,039 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 19:15:23,057 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 19:15:23,096 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 19:15:23,096 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 19:15:23,097 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 19:15:23,097 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 19:15:23,097 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 19:15:23,097 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 19:15:23,097 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 19:15:23,097 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 19:15:23,117 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-12-03 19:15:23,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-03 19:15:23,126 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 19:15:23,127 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 19:15:23,129 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 19:15:23,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 19:15:23,140 INFO L82 PathProgramCache]: Analyzing trace with hash -417618663, now seen corresponding path program 1 times [2018-12-03 19:15:23,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 19:15:23,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:23,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 19:15:23,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:23,197 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 19:15:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 19:15:23,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 19:15:23,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 19:15:23,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 19:15:23,407 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 19:15:23,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 19:15:23,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 19:15:23,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 19:15:23,429 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2018-12-03 19:15:23,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 19:15:23,497 INFO L93 Difference]: Finished difference Result 51 states and 71 transitions. [2018-12-03 19:15:23,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 19:15:23,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-12-03 19:15:23,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 19:15:23,511 INFO L225 Difference]: With dead ends: 51 [2018-12-03 19:15:23,512 INFO L226 Difference]: Without dead ends: 33 [2018-12-03 19:15:23,521 INFO L631 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 [2018-12-03 19:15:23,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-03 19:15:23,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2018-12-03 19:15:23,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-03 19:15:23,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2018-12-03 19:15:23,569 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 16 [2018-12-03 19:15:23,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 19:15:23,569 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2018-12-03 19:15:23,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 19:15:23,569 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2018-12-03 19:15:23,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-03 19:15:23,570 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 19:15:23,570 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 19:15:23,571 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 19:15:23,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 19:15:23,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1428735913, now seen corresponding path program 1 times [2018-12-03 19:15:23,571 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 19:15:23,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:23,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 19:15:23,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:23,575 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 19:15:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 19:15:23,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 19:15:23,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 19:15:23,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 19:15:23,713 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 19:15:23,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 19:15:23,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 19:15:23,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 19:15:23,717 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 3 states. [2018-12-03 19:15:23,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 19:15:23,776 INFO L93 Difference]: Finished difference Result 91 states and 127 transitions. [2018-12-03 19:15:23,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 19:15:23,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-12-03 19:15:23,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 19:15:23,784 INFO L225 Difference]: With dead ends: 91 [2018-12-03 19:15:23,784 INFO L226 Difference]: Without dead ends: 61 [2018-12-03 19:15:23,787 INFO L631 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 [2018-12-03 19:15:23,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-12-03 19:15:23,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2018-12-03 19:15:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-12-03 19:15:23,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 82 transitions. [2018-12-03 19:15:23,815 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 82 transitions. Word has length 16 [2018-12-03 19:15:23,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 19:15:23,816 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 82 transitions. [2018-12-03 19:15:23,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 19:15:23,816 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2018-12-03 19:15:23,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-03 19:15:23,819 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 19:15:23,819 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 19:15:23,819 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 19:15:23,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 19:15:23,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1821762923, now seen corresponding path program 1 times [2018-12-03 19:15:23,820 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 19:15:23,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:23,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 19:15:23,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:23,822 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 19:15:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 19:15:23,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 19:15:23,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 19:15:23,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 19:15:23,972 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 19:15:23,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 19:15:23,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 19:15:23,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 19:15:23,975 INFO L87 Difference]: Start difference. First operand 59 states and 82 transitions. Second operand 3 states. [2018-12-03 19:15:24,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 19:15:24,039 INFO L93 Difference]: Finished difference Result 175 states and 244 transitions. [2018-12-03 19:15:24,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 19:15:24,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-12-03 19:15:24,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 19:15:24,045 INFO L225 Difference]: With dead ends: 175 [2018-12-03 19:15:24,045 INFO L226 Difference]: Without dead ends: 117 [2018-12-03 19:15:24,048 INFO L631 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 [2018-12-03 19:15:24,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-12-03 19:15:24,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2018-12-03 19:15:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-12-03 19:15:24,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2018-12-03 19:15:24,076 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 16 [2018-12-03 19:15:24,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 19:15:24,077 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2018-12-03 19:15:24,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 19:15:24,077 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2018-12-03 19:15:24,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-03 19:15:24,078 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 19:15:24,078 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 19:15:24,080 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 19:15:24,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 19:15:24,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1764504621, now seen corresponding path program 1 times [2018-12-03 19:15:24,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 19:15:24,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:24,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 19:15:24,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:24,083 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 19:15:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 19:15:24,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 19:15:24,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 19:15:24,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 19:15:24,173 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 19:15:24,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 19:15:24,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 19:15:24,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 19:15:24,175 INFO L87 Difference]: Start difference. First operand 115 states and 158 transitions. Second operand 4 states. [2018-12-03 19:15:24,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 19:15:24,343 INFO L93 Difference]: Finished difference Result 245 states and 331 transitions. [2018-12-03 19:15:24,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 19:15:24,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-12-03 19:15:24,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 19:15:24,347 INFO L225 Difference]: With dead ends: 245 [2018-12-03 19:15:24,347 INFO L226 Difference]: Without dead ends: 243 [2018-12-03 19:15:24,351 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 19:15:24,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-12-03 19:15:24,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 131. [2018-12-03 19:15:24,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-12-03 19:15:24,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 174 transitions. [2018-12-03 19:15:24,403 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 174 transitions. Word has length 16 [2018-12-03 19:15:24,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 19:15:24,403 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 174 transitions. [2018-12-03 19:15:24,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 19:15:24,404 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 174 transitions. [2018-12-03 19:15:24,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-03 19:15:24,404 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 19:15:24,405 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 19:15:24,405 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 19:15:24,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 19:15:24,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1764564203, now seen corresponding path program 1 times [2018-12-03 19:15:24,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 19:15:24,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:24,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 19:15:24,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:24,408 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 19:15:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 19:15:24,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 19:15:24,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 19:15:24,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 19:15:24,521 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 19:15:24,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 19:15:24,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 19:15:24,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 19:15:24,522 INFO L87 Difference]: Start difference. First operand 131 states and 174 transitions. Second operand 3 states. [2018-12-03 19:15:24,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 19:15:24,618 INFO L93 Difference]: Finished difference Result 319 states and 425 transitions. [2018-12-03 19:15:24,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 19:15:24,619 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-12-03 19:15:24,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 19:15:24,620 INFO L225 Difference]: With dead ends: 319 [2018-12-03 19:15:24,621 INFO L226 Difference]: Without dead ends: 189 [2018-12-03 19:15:24,623 INFO L631 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 [2018-12-03 19:15:24,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2018-12-03 19:15:24,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2018-12-03 19:15:24,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-12-03 19:15:24,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 248 transitions. [2018-12-03 19:15:24,684 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 248 transitions. Word has length 16 [2018-12-03 19:15:24,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 19:15:24,685 INFO L480 AbstractCegarLoop]: Abstraction has 189 states and 248 transitions. [2018-12-03 19:15:24,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 19:15:24,685 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 248 transitions. [2018-12-03 19:15:24,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-03 19:15:24,688 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 19:15:24,689 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 19:15:24,689 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 19:15:24,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 19:15:24,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1265916431, now seen corresponding path program 1 times [2018-12-03 19:15:24,690 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 19:15:24,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:24,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 19:15:24,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:24,692 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 19:15:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 19:15:25,011 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-12-03 19:15:25,015 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 19:15:25,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 19:15:25,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 19:15:25,016 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 19:15:25,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 19:15:25,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 19:15:25,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 19:15:25,018 INFO L87 Difference]: Start difference. First operand 189 states and 248 transitions. Second operand 3 states. [2018-12-03 19:15:25,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 19:15:25,134 INFO L93 Difference]: Finished difference Result 561 states and 738 transitions. [2018-12-03 19:15:25,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 19:15:25,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-12-03 19:15:25,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 19:15:25,138 INFO L225 Difference]: With dead ends: 561 [2018-12-03 19:15:25,138 INFO L226 Difference]: Without dead ends: 375 [2018-12-03 19:15:25,139 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 19:15:25,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2018-12-03 19:15:25,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2018-12-03 19:15:25,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2018-12-03 19:15:25,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 480 transitions. [2018-12-03 19:15:25,204 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 480 transitions. Word has length 30 [2018-12-03 19:15:25,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 19:15:25,205 INFO L480 AbstractCegarLoop]: Abstraction has 373 states and 480 transitions. [2018-12-03 19:15:25,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 19:15:25,205 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 480 transitions. [2018-12-03 19:15:25,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-03 19:15:25,207 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 19:15:25,207 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 19:15:25,208 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 19:15:25,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 19:15:25,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1524081869, now seen corresponding path program 1 times [2018-12-03 19:15:25,208 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 19:15:25,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:25,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 19:15:25,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:25,210 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 19:15:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 19:15:25,506 WARN L180 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-12-03 19:15:25,510 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 19:15:25,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 19:15:25,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 19:15:25,511 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 19:15:25,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 19:15:25,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 19:15:25,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 19:15:25,512 INFO L87 Difference]: Start difference. First operand 373 states and 480 transitions. Second operand 3 states. [2018-12-03 19:15:25,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 19:15:25,694 INFO L93 Difference]: Finished difference Result 1113 states and 1434 transitions. [2018-12-03 19:15:25,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 19:15:25,695 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-12-03 19:15:25,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 19:15:25,699 INFO L225 Difference]: With dead ends: 1113 [2018-12-03 19:15:25,699 INFO L226 Difference]: Without dead ends: 743 [2018-12-03 19:15:25,701 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 19:15:25,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2018-12-03 19:15:25,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 741. [2018-12-03 19:15:25,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2018-12-03 19:15:25,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 932 transitions. [2018-12-03 19:15:25,822 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 932 transitions. Word has length 30 [2018-12-03 19:15:25,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 19:15:25,822 INFO L480 AbstractCegarLoop]: Abstraction has 741 states and 932 transitions. [2018-12-03 19:15:25,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 19:15:25,822 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 932 transitions. [2018-12-03 19:15:25,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-03 19:15:25,829 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 19:15:25,829 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 19:15:25,830 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 19:15:25,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 19:15:25,830 INFO L82 PathProgramCache]: Analyzing trace with hash -714735243, now seen corresponding path program 1 times [2018-12-03 19:15:25,830 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 19:15:25,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:25,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 19:15:25,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:15:25,836 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 19:15:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 19:15:26,041 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 13 [2018-12-03 19:15:26,063 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 19:15:26,063 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 19:15:26,063 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 19:15:26,064 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 31 with the following transitions: [2018-12-03 19:15:26,066 INFO L205 CegarAbsIntRunner]: [0], [2], [6], [8], [10], [14], [16], [18], [22], [24], [26], [30], [32], [34], [38], [40], [42], [46], [48], [50], [54], [56], [58] [2018-12-03 19:15:26,128 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-03 19:15:26,128 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 19:15:27,296 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-12-03 19:16:11,651 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 19:16:11,652 INFO L272 AbstractInterpreter]: Visited 23 different actions 352 times. Merged at 22 different actions 255 times. Widened at 14 different actions 69 times. Found 80 fixpoints after 11 different actions. Largest state had 0 variables. [2018-12-03 19:16:11,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 19:16:11,668 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 19:16:11,668 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 19:16:11,668 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-12-03 19:16:11,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 19:16:11,681 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 19:16:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 19:16:11,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 19:16:12,090 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-03 19:16:12,090 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 19:16:12,362 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-03 19:16:12,396 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 19:16:12,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2018-12-03 19:16:12,397 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 19:16:12,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 19:16:12,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 19:16:12,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-12-03 19:16:12,398 INFO L87 Difference]: Start difference. First operand 741 states and 932 transitions. Second operand 7 states. [2018-12-03 19:16:12,668 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-12-03 19:16:13,598 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-12-03 19:16:14,745 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-03 19:16:15,071 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-12-03 19:16:15,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 19:16:15,092 INFO L93 Difference]: Finished difference Result 1609 states and 2019 transitions. [2018-12-03 19:16:15,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-03 19:16:15,092 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-12-03 19:16:15,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 19:16:15,095 INFO L225 Difference]: With dead ends: 1609 [2018-12-03 19:16:15,095 INFO L226 Difference]: Without dead ends: 565 [2018-12-03 19:16:15,098 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2018-12-03 19:16:15,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2018-12-03 19:16:15,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 515. [2018-12-03 19:16:15,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2018-12-03 19:16:15,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 606 transitions. [2018-12-03 19:16:15,194 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 606 transitions. Word has length 30 [2018-12-03 19:16:15,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 19:16:15,195 INFO L480 AbstractCegarLoop]: Abstraction has 515 states and 606 transitions. [2018-12-03 19:16:15,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 19:16:15,195 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 606 transitions. [2018-12-03 19:16:15,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-12-03 19:16:15,197 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 19:16:15,197 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2018-12-03 19:16:15,197 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 19:16:15,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 19:16:15,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1918843925, now seen corresponding path program 2 times [2018-12-03 19:16:15,198 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 19:16:15,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:16:15,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 19:16:15,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 19:16:15,200 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 19:16:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 19:16:15,281 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-12-03 19:16:15,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 19:16:15,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 19:16:15,281 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 19:16:15,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 19:16:15,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 19:16:15,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 19:16:15,283 INFO L87 Difference]: Start difference. First operand 515 states and 606 transitions. Second operand 3 states. [2018-12-03 19:16:15,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 19:16:15,301 INFO L93 Difference]: Finished difference Result 515 states and 606 transitions. [2018-12-03 19:16:15,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 19:16:15,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2018-12-03 19:16:15,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 19:16:15,302 INFO L225 Difference]: With dead ends: 515 [2018-12-03 19:16:15,302 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 19:16:15,303 INFO L631 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 [2018-12-03 19:16:15,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 19:16:15,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 19:16:15,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 19:16:15,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 19:16:15,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2018-12-03 19:16:15,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 19:16:15,304 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 19:16:15,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 19:16:15,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 19:16:15,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 19:16:15,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 19:16:15,711 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-12-03 19:16:16,213 WARN L180 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2018-12-03 19:16:16,336 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2018-12-03 19:16:16,605 WARN L180 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-12-03 19:16:16,799 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-12-03 19:16:17,224 WARN L180 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2018-12-03 19:16:17,382 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2018-12-03 19:16:17,610 WARN L180 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-12-03 19:16:17,716 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2018-12-03 19:16:17,898 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2018-12-03 19:16:18,179 WARN L180 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2018-12-03 19:16:18,272 INFO L444 ceAbstractionStarter]: At program point L415(lines 409 416) the Hoare annotation is: (let ((.cse0 (<= 1 ~mode2)) (.cse1 (not (= ~p1_new ~nomsg))) (.cse2 (< 0 (+ (div ~send1 256) 1))) (.cse3 (<= ~send1 127)) (.cse4 (<= (div ~mode2 256) 0)) (.cse5 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= ~r1 (* 256 (div ~r1 256)))) (and (not (= ~p1_old ~nomsg)) .cse0 .cse1 .cse2 .cse3 (exists ((v_~r1_7 Int)) (let ((.cse6 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse6 1)) (<= .cse6 0)))) .cse4 .cse5))) [2018-12-03 19:16:18,272 INFO L444 ceAbstractionStarter]: At program point L461(lines 308 461) the Hoare annotation is: (let ((.cse0 (< 0 (+ (div ~send1 256) 1))) (.cse2 (<= ~send1 127)) (.cse1 (div ~mode2 256)) (.cse3 (= 0 (+ ~nomsg 1)))) (or (and (= ~mode5 (* 256 (div ~mode5 256))) (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) .cse0 (= ~mode2 (* 256 .cse1)) .cse2 .cse3 (<= ~r1 (* 256 (div ~r1 256)))) (and (not (= ~p1_old ~nomsg)) (<= 1 ~mode2) .cse0 .cse2 (<= .cse1 0) .cse3))) [2018-12-03 19:16:18,272 INFO L444 ceAbstractionStarter]: At program point L395(lines 389 396) the Hoare annotation is: (let ((.cse7 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 1 ~mode2)) (.cse2 (not (= ~p1_new ~nomsg))) (.cse3 (< 0 (+ (div ~send1 256) 1))) (.cse4 (<= ~send1 127)) (.cse5 (<= (div ~mode2 256) 0)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and (= ~mode5 (* 256 (div ~mode5 256))) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((v_~r1_7 Int)) (let ((.cse8 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse8 1)) (<= .cse8 0)))) .cse5 .cse6))) [2018-12-03 19:16:18,272 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 91 464) no Hoare annotation was computed. [2018-12-03 19:16:18,272 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 91 464) no Hoare annotation was computed. [2018-12-03 19:16:18,273 INFO L444 ceAbstractionStarter]: At program point L375(lines 369 376) the Hoare annotation is: (let ((.cse7 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 1 ~mode2)) (.cse2 (not (= ~p1_new ~nomsg))) (.cse3 (< 0 (+ (div ~send1 256) 1))) (.cse4 (<= ~send1 127)) (.cse5 (<= (div ~mode2 256) 0)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and (= ~mode5 (* 256 (div ~mode5 256))) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((v_~r1_7 Int)) (let ((.cse8 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse8 1)) (<= .cse8 0)))) .cse5 .cse6))) [2018-12-03 19:16:18,273 INFO L444 ceAbstractionStarter]: At program point L400(lines 400 410) the Hoare annotation is: (let ((.cse7 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 1 ~mode2)) (.cse2 (not (= ~p1_new ~nomsg))) (.cse3 (< 0 (+ (div ~send1 256) 1))) (.cse4 (<= ~send1 127)) (.cse5 (<= (div ~mode2 256) 0)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and (= ~mode5 (* 256 (div ~mode5 256))) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((v_~r1_7 Int)) (let ((.cse8 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse8 1)) (<= .cse8 0)))) .cse5 .cse6))) [2018-12-03 19:16:18,273 INFO L444 ceAbstractionStarter]: At program point L458(lines 458 462) the Hoare annotation is: false [2018-12-03 19:16:18,273 INFO L444 ceAbstractionStarter]: At program point L355(lines 349 356) the Hoare annotation is: (let ((.cse7 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 1 ~mode2)) (.cse2 (not (= ~p1_new ~nomsg))) (.cse3 (< 0 (+ (div ~send1 256) 1))) (.cse4 (<= ~send1 127)) (.cse5 (<= (div ~mode2 256) 0)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and (= ~mode5 (* 256 (div ~mode5 256))) (= ~mode3 (* 256 (div ~mode3 256))) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((v_~r1_7 Int)) (let ((.cse8 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse8 1)) (<= .cse8 0)))) .cse5 .cse6))) [2018-12-03 19:16:18,274 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 91 464) no Hoare annotation was computed. [2018-12-03 19:16:18,274 INFO L444 ceAbstractionStarter]: At program point L380(lines 380 390) the Hoare annotation is: (let ((.cse7 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 1 ~mode2)) (.cse2 (not (= ~p1_new ~nomsg))) (.cse3 (< 0 (+ (div ~send1 256) 1))) (.cse4 (<= ~send1 127)) (.cse5 (<= (div ~mode2 256) 0)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and (= ~mode5 (* 256 (div ~mode5 256))) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((v_~r1_7 Int)) (let ((.cse8 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse8 1)) (<= .cse8 0)))) .cse5 .cse6))) [2018-12-03 19:16:18,274 INFO L444 ceAbstractionStarter]: At program point L442(lines 438 443) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (<= 1 ~mode2) (< 0 (+ (div ~send1 256) 1)) (<= ~send1 127) (<= (div ~mode2 256) 0) (= 0 (+ ~nomsg 1)) (<= 1 ULTIMATE.start_check_~tmp~129)) [2018-12-03 19:16:18,274 INFO L444 ceAbstractionStarter]: At program point L335(lines 326 336) the Hoare annotation is: (let ((.cse9 (div ~mode2 256))) (let ((.cse2 (not (= ~p1_new ~nomsg))) (.cse8 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 1 ~mode2)) (.cse3 (< 0 (+ (div ~send1 256) 1))) (.cse4 (<= ~send1 127)) (.cse5 (<= .cse9 0)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse2 .cse3 .cse4 (exists ((v_~r1_7 Int)) (let ((.cse7 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse7 1)) (<= .cse7 0)))) .cse6) (and .cse0 .cse2 .cse3 .cse4 .cse6 .cse8) (and (= ~mode5 (* 256 (div ~mode5 256))) (= ~mode3 (* 256 (div ~mode3 256))) .cse2 .cse3 (= ~mode2 (* 256 .cse9)) .cse4 .cse6 .cse8) (and .cse0 (= ~mode1 (* 256 (div ~mode1 256))) .cse1 .cse3 .cse4 .cse5 .cse6)))) [2018-12-03 19:16:18,275 INFO L444 ceAbstractionStarter]: At program point L360(lines 360 370) the Hoare annotation is: (let ((.cse7 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 1 ~mode2)) (.cse2 (not (= ~p1_new ~nomsg))) (.cse3 (< 0 (+ (div ~send1 256) 1))) (.cse4 (<= ~send1 127)) (.cse5 (<= (div ~mode2 256) 0)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and (= ~mode5 (* 256 (div ~mode5 256))) (= ~mode3 (* 256 (div ~mode3 256))) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((v_~r1_7 Int)) (let ((.cse8 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse8 1)) (<= .cse8 0)))) .cse5 .cse6))) [2018-12-03 19:16:18,275 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 463) no Hoare annotation was computed. [2018-12-03 19:16:18,275 INFO L444 ceAbstractionStarter]: At program point L315(lines 315 327) the Hoare annotation is: (let ((.cse0 (< 0 (+ (div ~send1 256) 1))) (.cse2 (<= ~send1 127)) (.cse1 (div ~mode2 256)) (.cse3 (= 0 (+ ~nomsg 1)))) (or (and (= ~mode5 (* 256 (div ~mode5 256))) (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) .cse0 (= ~mode2 (* 256 .cse1)) .cse2 .cse3 (<= ~r1 (* 256 (div ~r1 256)))) (and (not (= ~p1_old ~nomsg)) (<= 1 ~mode2) .cse0 .cse2 (<= .cse1 0) .cse3))) [2018-12-03 19:16:18,275 INFO L444 ceAbstractionStarter]: At program point L340(lines 340 350) the Hoare annotation is: (let ((.cse9 (div ~mode2 256))) (let ((.cse2 (not (= ~p1_new ~nomsg))) (.cse8 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 1 ~mode2)) (.cse3 (< 0 (+ (div ~send1 256) 1))) (.cse4 (<= ~send1 127)) (.cse5 (<= .cse9 0)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse2 .cse3 .cse4 (exists ((v_~r1_7 Int)) (let ((.cse7 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse7 1)) (<= .cse7 0)))) .cse6) (and .cse0 .cse2 .cse3 .cse4 .cse6 .cse8) (and (= ~mode5 (* 256 (div ~mode5 256))) (= ~mode3 (* 256 (div ~mode3 256))) .cse2 .cse3 (= ~mode2 (* 256 .cse9)) .cse4 .cse6 .cse8) (and .cse0 (= ~mode1 (* 256 (div ~mode1 256))) .cse1 .cse3 .cse4 .cse5 .cse6)))) [2018-12-03 19:16:18,276 INFO L444 ceAbstractionStarter]: At program point L431(lines 431 439) the Hoare annotation is: (let ((.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 1 ~mode2)) (.cse2 (< 0 (+ (div ~send1 256) 1))) (.cse3 (<= ~send1 127)) (.cse4 (<= (div ~mode2 256) 0)) (.cse5 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= ~r1 (* 256 (div ~r1 256)))) (and .cse0 .cse1 .cse2 .cse3 (exists ((v_~r1_7 Int)) (let ((.cse6 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse6 1)) (<= .cse6 0)))) .cse4 .cse5))) [2018-12-03 19:16:18,276 INFO L444 ceAbstractionStarter]: At program point L452(lines 452 459) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (= ULTIMATE.start_assert_~arg 1) (<= 1 ~mode2) (< 0 (+ (div ~send1 256) 1)) (<= ~send1 127) (<= (div ~mode2 256) 0) (= 0 (+ ~nomsg 1)) (<= 1 ULTIMATE.start_check_~tmp~129)) [2018-12-03 19:16:18,301 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.5.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 07:16:18 BoogieIcfgContainer [2018-12-03 19:16:18,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 19:16:18,303 INFO L168 Benchmark]: Toolchain (without parser) took 56147.24 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 822.9 MB. Max. memory is 7.1 GB. [2018-12-03 19:16:18,304 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 19:16:18,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 19:16:18,305 INFO L168 Benchmark]: Boogie Preprocessor took 58.33 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. [2018-12-03 19:16:18,306 INFO L168 Benchmark]: RCFGBuilder took 754.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-12-03 19:16:18,306 INFO L168 Benchmark]: TraceAbstraction took 55290.45 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 780.6 MB. Max. memory is 7.1 GB. [2018-12-03 19:16:18,310 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.33 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 754.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 55290.45 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 780.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 463]: 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: 452]: Loop Invariant Derived loop invariant: ((((((!(~p1_old == ~nomsg) && assert_~arg == 1) && 1 <= ~mode2) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && 1 <= check_~tmp~129 - InvariantResult [Line: 349]: Loop Invariant Derived loop invariant: ((((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || ((((((((~mode5 == 256 * (~mode5 / 256) && ~mode3 == 256 * (~mode3 / 256)) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || (((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: (((((((~mode5 == 256 * (~mode5 / 256) && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && 0 < ~send1 / 256 + 1) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) - InvariantResult [Line: 369]: Loop Invariant Derived loop invariant: ((((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((((~mode5 == 256 * (~mode5 / 256) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || (((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: ((((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((((~mode5 == 256 * (~mode5 / 256) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || (((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) - InvariantResult [Line: 458]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 409]: Loop Invariant Derived loop invariant: ((((((1 <= ~mode2 && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) - InvariantResult [Line: 340]: Loop Invariant Derived loop invariant: (((((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) || (((((!(~p1_old == ~nomsg) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && 0 == ~nomsg + 1)) || (((((!(~p1_old == ~nomsg) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || (((((((~mode5 == 256 * (~mode5 / 256) && ~mode3 == 256 * (~mode3 / 256)) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || ((((((!(~p1_old == ~nomsg) && ~mode1 == 256 * (~mode1 / 256)) && 1 <= ~mode2) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: ((((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || ((((((((~mode5 == 256 * (~mode5 / 256) && ~mode3 == 256 * (~mode3 / 256)) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || (((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) - InvariantResult [Line: 380]: Loop Invariant Derived loop invariant: ((((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((((~mode5 == 256 * (~mode5 / 256) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || (((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: (((((((~mode5 == 256 * (~mode5 / 256) && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && 0 < ~send1 / 256 + 1) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: ((((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((((~mode5 == 256 * (~mode5 / 256) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || (((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: (((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && 1 <= check_~tmp~129 - InvariantResult [Line: 326]: Loop Invariant Derived loop invariant: (((((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) || (((((!(~p1_old == ~nomsg) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && 0 == ~nomsg + 1)) || (((((!(~p1_old == ~nomsg) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || (((((((~mode5 == 256 * (~mode5 / 256) && ~mode3 == 256 * (~mode3 / 256)) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || ((((((!(~p1_old == ~nomsg) && ~mode1 == 256 * (~mode1 / 256)) && 1 <= ~mode2) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) - InvariantResult [Line: 431]: Loop Invariant Derived loop invariant: ((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || ((((((!(~p1_old == ~nomsg) && 1 <= ~mode2) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && ~mode2 / 256 <= 0) && 0 == ~nomsg + 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. SAFE Result, 55.1s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 3.5s AutomataDifference, 0.0s DeadEndRemovalTime, 2.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 269 SDtfs, 238 SDslu, 219 SDs, 0 SdLazy, 187 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=741occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 45.6s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 172 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 325 NumberOfFragments, 1538 HoareAnnotationTreeSize, 15 FomulaSimplifications, 18451 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 15 FomulaSimplificationsInter, 100 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 277 ConstructedInterpolants, 10 QuantifiedInterpolants, 31963 SizeOfPredicates, 1 NumberOfNonLiveVariables, 296 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 130/154 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...