java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-00a8621 [2018-09-30 10:28:14,506 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 10:28:14,508 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 10:28:14,520 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 10:28:14,521 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 10:28:14,522 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 10:28:14,523 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 10:28:14,525 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 10:28:14,526 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 10:28:14,527 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 10:28:14,528 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 10:28:14,529 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 10:28:14,530 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 10:28:14,531 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 10:28:14,532 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 10:28:14,533 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 10:28:14,534 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 10:28:14,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 10:28:14,538 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 10:28:14,539 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 10:28:14,540 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 10:28:14,541 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 10:28:14,544 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 10:28:14,544 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 10:28:14,544 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 10:28:14,545 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 10:28:14,547 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 10:28:14,547 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 10:28:14,548 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 10:28:14,552 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 10:28:14,552 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 10:28:14,553 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 10:28:14,553 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 10:28:14,553 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 10:28:14,554 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 10:28:14,560 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 10:28:14,561 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-30 10:28:14,587 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 10:28:14,587 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 10:28:14,588 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 10:28:14,589 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 10:28:14,589 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 10:28:14,589 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 10:28:14,589 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 10:28:14,590 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 10:28:14,590 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 10:28:14,590 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 10:28:14,590 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 10:28:14,591 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 10:28:14,591 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 10:28:14,591 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 10:28:14,591 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 10:28:14,591 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 10:28:14,591 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 10:28:14,592 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 10:28:14,592 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 10:28:14,592 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 10:28:14,592 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 10:28:14,592 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 10:28:14,593 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 10:28:14,593 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 10:28:14,593 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 10:28:14,593 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 10:28:14,593 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 10:28:14,594 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 10:28:14,594 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 10:28:14,594 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 10:28:14,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 10:28:14,657 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 10:28:14,663 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 10:28:14,664 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 10:28:14,665 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 10:28:14,666 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl [2018-09-30 10:28:14,666 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl' [2018-09-30 10:28:14,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 10:28:14,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 10:28:14,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 10:28:14,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 10:28:14,746 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 10:28:14,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:28:14" (1/1) ... [2018-09-30 10:28:14,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:28:14" (1/1) ... [2018-09-30 10:28:14,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 10:28:14,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 10:28:14,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 10:28:14,796 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 10:28:14,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:28:14" (1/1) ... [2018-09-30 10:28:14,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:28:14" (1/1) ... [2018-09-30 10:28:14,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:28:14" (1/1) ... [2018-09-30 10:28:14,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:28:14" (1/1) ... [2018-09-30 10:28:14,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:28:14" (1/1) ... [2018-09-30 10:28:14,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:28:14" (1/1) ... [2018-09-30 10:28:14,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:28:14" (1/1) ... [2018-09-30 10:28:14,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 10:28:14,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 10:28:14,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 10:28:14,856 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 10:28:14,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:28:14" (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 [2018-09-30 10:28:14,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-30 10:28:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-30 10:28:15,545 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-30 10:28:15,545 INFO L202 PluginConnector]: Adding new model pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:28:15 BoogieIcfgContainer [2018-09-30 10:28:15,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 10:28:15,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 10:28:15,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 10:28:15,550 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 10:28:15,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:28:14" (1/2) ... [2018-09-30 10:28:15,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a2c338 and model type pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 10:28:15, skipping insertion in model container [2018-09-30 10:28:15,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:28:15" (2/2) ... [2018-09-30 10:28:15,553 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl [2018-09-30 10:28:15,563 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 10:28:15,572 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 10:28:15,622 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 10:28:15,622 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 10:28:15,623 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 10:28:15,623 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 10:28:15,623 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 10:28:15,623 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 10:28:15,623 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 10:28:15,623 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 10:28:15,624 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 10:28:15,639 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-30 10:28:15,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 10:28:15,646 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:28:15,647 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:28:15,650 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:28:15,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:28:15,658 INFO L82 PathProgramCache]: Analyzing trace with hash 679324735, now seen corresponding path program 1 times [2018-09-30 10:28:15,661 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:28:15,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:28:15,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:15,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:28:15,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:28:15,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:28:15,896 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:28:15,897 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:28:15,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:28:15,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:28:15,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:28:15,916 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-09-30 10:28:15,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:28:15,985 INFO L93 Difference]: Finished difference Result 48 states and 68 transitions. [2018-09-30 10:28:15,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:28:15,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-09-30 10:28:15,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:28:15,999 INFO L225 Difference]: With dead ends: 48 [2018-09-30 10:28:15,999 INFO L226 Difference]: Without dead ends: 31 [2018-09-30 10:28:16,003 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:28:16,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-09-30 10:28:16,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2018-09-30 10:28:16,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-09-30 10:28:16,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 41 transitions. [2018-09-30 10:28:16,052 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 41 transitions. Word has length 15 [2018-09-30 10:28:16,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:28:16,052 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 41 transitions. [2018-09-30 10:28:16,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:28:16,053 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2018-09-30 10:28:16,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 10:28:16,053 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:28:16,053 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:28:16,054 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:28:16,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:28:16,054 INFO L82 PathProgramCache]: Analyzing trace with hash 92518721, now seen corresponding path program 1 times [2018-09-30 10:28:16,054 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:28:16,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:28:16,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:16,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:28:16,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:28:16,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:28:16,194 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:28:16,195 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:28:16,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:28:16,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:28:16,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:28:16,197 INFO L87 Difference]: Start difference. First operand 29 states and 41 transitions. Second operand 3 states. [2018-09-30 10:28:16,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:28:16,253 INFO L93 Difference]: Finished difference Result 85 states and 121 transitions. [2018-09-30 10:28:16,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:28:16,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-09-30 10:28:16,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:28:16,257 INFO L225 Difference]: With dead ends: 85 [2018-09-30 10:28:16,257 INFO L226 Difference]: Without dead ends: 57 [2018-09-30 10:28:16,258 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:28:16,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-30 10:28:16,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2018-09-30 10:28:16,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-09-30 10:28:16,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2018-09-30 10:28:16,283 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 78 transitions. Word has length 15 [2018-09-30 10:28:16,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:28:16,283 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 78 transitions. [2018-09-30 10:28:16,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:28:16,284 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 78 transitions. [2018-09-30 10:28:16,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 10:28:16,284 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:28:16,285 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:28:16,285 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:28:16,285 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:28:16,285 INFO L82 PathProgramCache]: Analyzing trace with hash 772577091, now seen corresponding path program 1 times [2018-09-30 10:28:16,286 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:28:16,286 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:28:16,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:16,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:28:16,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:28:16,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:28:16,422 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:28:16,423 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:28:16,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:28:16,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:28:16,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:28:16,426 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand 3 states. [2018-09-30 10:28:16,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:28:16,503 INFO L93 Difference]: Finished difference Result 139 states and 197 transitions. [2018-09-30 10:28:16,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:28:16,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-09-30 10:28:16,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:28:16,507 INFO L225 Difference]: With dead ends: 139 [2018-09-30 10:28:16,507 INFO L226 Difference]: Without dead ends: 85 [2018-09-30 10:28:16,508 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:28:16,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-30 10:28:16,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2018-09-30 10:28:16,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-09-30 10:28:16,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2018-09-30 10:28:16,530 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 115 transitions. Word has length 15 [2018-09-30 10:28:16,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:28:16,530 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 115 transitions. [2018-09-30 10:28:16,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:28:16,530 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2018-09-30 10:28:16,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 10:28:16,531 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:28:16,531 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:28:16,532 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:28:16,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:28:16,532 INFO L82 PathProgramCache]: Analyzing trace with hash 774424133, now seen corresponding path program 1 times [2018-09-30 10:28:16,532 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:28:16,532 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:28:16,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:16,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:28:16,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:28:16,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:28:16,632 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:28:16,632 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-30 10:28:16,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-30 10:28:16,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-30 10:28:16,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-30 10:28:16,634 INFO L87 Difference]: Start difference. First operand 83 states and 115 transitions. Second operand 4 states. [2018-09-30 10:28:16,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:28:16,826 INFO L93 Difference]: Finished difference Result 155 states and 212 transitions. [2018-09-30 10:28:16,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-30 10:28:16,827 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-09-30 10:28:16,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:28:16,829 INFO L225 Difference]: With dead ends: 155 [2018-09-30 10:28:16,829 INFO L226 Difference]: Without dead ends: 153 [2018-09-30 10:28:16,830 INFO L605 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 [2018-09-30 10:28:16,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-09-30 10:28:16,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 91. [2018-09-30 10:28:16,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-09-30 10:28:16,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 121 transitions. [2018-09-30 10:28:16,858 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 121 transitions. Word has length 15 [2018-09-30 10:28:16,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:28:16,859 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 121 transitions. [2018-09-30 10:28:16,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-30 10:28:16,859 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 121 transitions. [2018-09-30 10:28:16,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-30 10:28:16,861 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:28:16,861 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:28:16,861 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:28:16,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:28:16,862 INFO L82 PathProgramCache]: Analyzing trace with hash 263176883, now seen corresponding path program 1 times [2018-09-30 10:28:16,862 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:28:16,862 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:28:16,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:16,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:28:16,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:28:16,951 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:28:16,951 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:28:16,951 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 10:28:16,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:28:16,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:28:16,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:28:16,953 INFO L87 Difference]: Start difference. First operand 91 states and 121 transitions. Second operand 3 states. [2018-09-30 10:28:17,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:28:17,041 INFO L93 Difference]: Finished difference Result 267 states and 357 transitions. [2018-09-30 10:28:17,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:28:17,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-09-30 10:28:17,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:28:17,044 INFO L225 Difference]: With dead ends: 267 [2018-09-30 10:28:17,044 INFO L226 Difference]: Without dead ends: 179 [2018-09-30 10:28:17,045 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:28:17,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-09-30 10:28:17,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2018-09-30 10:28:17,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-09-30 10:28:17,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 232 transitions. [2018-09-30 10:28:17,087 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 232 transitions. Word has length 28 [2018-09-30 10:28:17,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:28:17,087 INFO L480 AbstractCegarLoop]: Abstraction has 177 states and 232 transitions. [2018-09-30 10:28:17,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:28:17,087 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 232 transitions. [2018-09-30 10:28:17,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-30 10:28:17,089 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:28:17,089 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:28:17,090 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:28:17,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:28:17,090 INFO L82 PathProgramCache]: Analyzing trace with hash -437887695, now seen corresponding path program 1 times [2018-09-30 10:28:17,090 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:28:17,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:28:17,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:17,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:28:17,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:28:17,217 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:28:17,217 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:28:17,218 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 10:28:17,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:28:17,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:28:17,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:28:17,219 INFO L87 Difference]: Start difference. First operand 177 states and 232 transitions. Second operand 3 states. [2018-09-30 10:28:17,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:28:17,339 INFO L93 Difference]: Finished difference Result 525 states and 690 transitions. [2018-09-30 10:28:17,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:28:17,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-09-30 10:28:17,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:28:17,345 INFO L225 Difference]: With dead ends: 525 [2018-09-30 10:28:17,345 INFO L226 Difference]: Without dead ends: 351 [2018-09-30 10:28:17,348 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:28:17,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-09-30 10:28:17,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 349. [2018-09-30 10:28:17,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2018-09-30 10:28:17,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 448 transitions. [2018-09-30 10:28:17,442 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 448 transitions. Word has length 28 [2018-09-30 10:28:17,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:28:17,442 INFO L480 AbstractCegarLoop]: Abstraction has 349 states and 448 transitions. [2018-09-30 10:28:17,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:28:17,443 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 448 transitions. [2018-09-30 10:28:17,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-30 10:28:17,447 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:28:17,447 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:28:17,447 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:28:17,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:28:17,448 INFO L82 PathProgramCache]: Analyzing trace with hash 2082072239, now seen corresponding path program 1 times [2018-09-30 10:28:17,448 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:28:17,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:28:17,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:17,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:28:17,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:28:17,653 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:28:17,654 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:28:17,654 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 [2018-09-30 10:28:17,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:28:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:28:17,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:28:17,927 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-30 10:28:17,958 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:28:17,958 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-09-30 10:28:17,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-30 10:28:17,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-30 10:28:17,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-30 10:28:17,960 INFO L87 Difference]: Start difference. First operand 349 states and 448 transitions. Second operand 7 states. [2018-09-30 10:28:18,731 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-30 10:28:19,677 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-30 10:28:20,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:28:20,906 INFO L93 Difference]: Finished difference Result 791 states and 1017 transitions. [2018-09-30 10:28:20,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-30 10:28:20,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-09-30 10:28:20,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:28:20,909 INFO L225 Difference]: With dead ends: 791 [2018-09-30 10:28:20,909 INFO L226 Difference]: Without dead ends: 287 [2018-09-30 10:28:20,911 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-09-30 10:28:20,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2018-09-30 10:28:20,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 266. [2018-09-30 10:28:20,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2018-09-30 10:28:20,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 314 transitions. [2018-09-30 10:28:20,963 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 314 transitions. Word has length 28 [2018-09-30 10:28:20,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:28:20,964 INFO L480 AbstractCegarLoop]: Abstraction has 266 states and 314 transitions. [2018-09-30 10:28:20,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-30 10:28:20,964 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 314 transitions. [2018-09-30 10:28:20,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-30 10:28:20,966 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:28:20,967 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2018-09-30 10:28:20,967 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:28:20,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:28:20,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1799101551, now seen corresponding path program 2 times [2018-09-30 10:28:20,968 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:28:20,968 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:28:20,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:20,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:28:20,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:28:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:28:21,048 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-09-30 10:28:21,048 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:28:21,049 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:28:21,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:28:21,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:28:21,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:28:21,051 INFO L87 Difference]: Start difference. First operand 266 states and 314 transitions. Second operand 3 states. [2018-09-30 10:28:21,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:28:21,063 INFO L93 Difference]: Finished difference Result 266 states and 314 transitions. [2018-09-30 10:28:21,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:28:21,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2018-09-30 10:28:21,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:28:21,064 INFO L225 Difference]: With dead ends: 266 [2018-09-30 10:28:21,064 INFO L226 Difference]: Without dead ends: 0 [2018-09-30 10:28:21,065 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:28:21,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-30 10:28:21,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-30 10:28:21,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-30 10:28:21,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-30 10:28:21,066 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2018-09-30 10:28:21,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:28:21,067 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-30 10:28:21,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:28:21,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-30 10:28:21,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-30 10:28:21,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-30 10:28:21,596 WARN L178 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-09-30 10:28:21,861 WARN L178 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-09-30 10:28:22,027 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-09-30 10:28:22,143 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2018-09-30 10:28:22,441 WARN L178 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-09-30 10:28:22,692 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-09-30 10:28:22,873 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-09-30 10:28:22,986 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-09-30 10:28:23,133 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-09-30 10:28:23,296 INFO L422 ceAbstractionStarter]: At program point L316(lines 308 317) the Hoare annotation is: (let ((.cse0 (<= 0 ~send1)) (.cse2 (<= 1 ~mode2)) (.cse3 (<= ~mode2 1)) (.cse4 (not (= ~p1_new ~nomsg))) (.cse5 (<= ~send1 127)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and (not (= ~p1_old ~nomsg)) .cse0 (exists ((v_~r1_9 Int)) (let ((.cse1 (mod v_~r1_9 256))) (and (= (+ .cse1 1) ~r1) (<= .cse1 0)))) .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 (<= ~r1 (* 256 (div ~r1 256)))))) [2018-09-30 10:28:23,297 INFO L422 ceAbstractionStarter]: At program point L250(lines 242 251) the Hoare annotation is: (let ((.cse5 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 0 ~send1)) (.cse7 (<= 1 ~mode2)) (.cse8 (<= ~mode2 1)) (.cse2 (not (= ~p1_new ~nomsg))) (.cse3 (<= ~send1 127)) (.cse4 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 (= ULTIMATE.start_assert_~arg 1) (<= 1 ULTIMATE.start_check_~tmp~85) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 (exists ((v_~r1_9 Int)) (let ((.cse6 (mod v_~r1_9 256))) (and (= (+ .cse6 1) ~r1) (<= .cse6 0)))) .cse2 .cse3 .cse4) (and .cse0 .cse1 (= ~mode1 (* 256 (div ~mode1 256))) .cse7 .cse8 .cse3 .cse4) (and .cse1 (= ~mode3 (* 256 (div ~mode3 256))) .cse2 (= ~mode2 (* 256 (div ~mode2 256))) .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse7 .cse8 .cse2 .cse3 .cse4))) [2018-09-30 10:28:23,297 INFO L422 ceAbstractionStarter]: At program point L366(lines 366 370) the Hoare annotation is: false [2018-09-30 10:28:23,297 INFO L422 ceAbstractionStarter]: At program point L255(lines 255 265) the Hoare annotation is: (let ((.cse5 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 0 ~send1)) (.cse7 (<= 1 ~mode2)) (.cse8 (<= ~mode2 1)) (.cse2 (not (= ~p1_new ~nomsg))) (.cse3 (<= ~send1 127)) (.cse4 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 (= ULTIMATE.start_assert_~arg 1) (<= 1 ULTIMATE.start_check_~tmp~85) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 (exists ((v_~r1_9 Int)) (let ((.cse6 (mod v_~r1_9 256))) (and (= (+ .cse6 1) ~r1) (<= .cse6 0)))) .cse2 .cse3 .cse4) (and .cse0 .cse1 (= ~mode1 (* 256 (div ~mode1 256))) .cse7 .cse8 .cse3 .cse4) (and .cse1 (= ~mode3 (* 256 (div ~mode3 256))) .cse2 (= ~mode2 (* 256 (div ~mode2 256))) .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse7 .cse8 .cse2 .cse3 .cse4))) [2018-09-30 10:28:23,297 INFO L422 ceAbstractionStarter]: At program point L350(lines 345 351) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (<= 0 ~send1) (<= 1 ~mode2) (<= ~mode2 1) (<= 1 ULTIMATE.start_check_~tmp~85) (<= ~send1 127) (= 0 (+ ~nomsg 1))) [2018-09-30 10:28:23,297 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 66 372) no Hoare annotation was computed. [2018-09-30 10:28:23,298 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 66 372) no Hoare annotation was computed. [2018-09-30 10:28:23,298 INFO L422 ceAbstractionStarter]: At program point L272(lines 264 273) the Hoare annotation is: (let ((.cse7 (not (= ~p1_old ~nomsg))) (.cse0 (<= 0 ~send1)) (.cse1 (<= 1 ~mode2)) (.cse2 (<= ~mode2 1)) (.cse3 (not (= ~p1_new ~nomsg))) (.cse4 (<= ~send1 127)) (.cse5 (= 0 (+ ~nomsg 1))) (.cse6 (<= ~r1 (* 256 (div ~r1 256))))) (or (and .cse0 (= ~mode3 (* 256 (div ~mode3 256))) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse0 (exists ((v_~r1_9 Int)) (let ((.cse8 (mod v_~r1_9 256))) (and (= (+ .cse8 1) ~r1) (<= .cse8 0)))) .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse0 (= ULTIMATE.start_assert_~arg 1) .cse1 .cse2 (<= 1 ULTIMATE.start_check_~tmp~85) .cse3 .cse4 .cse5 .cse6))) [2018-09-30 10:28:23,298 INFO L422 ceAbstractionStarter]: At program point L330(lines 330 336) the Hoare annotation is: (let ((.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 0 ~send1)) (.cse2 (<= 1 ~mode2)) (.cse3 (<= ~mode2 1)) (.cse4 (<= ~send1 127)) (.cse5 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= ~r1 (* 256 (div ~r1 256)))) (and .cse0 .cse1 (exists ((v_~r1_9 Int)) (let ((.cse6 (mod v_~r1_9 256))) (and (= (+ .cse6 1) ~r1) (<= .cse6 0)))) .cse2 .cse3 .cse4 .cse5))) [2018-09-30 10:28:23,298 INFO L422 ceAbstractionStarter]: At program point L231(lines 231 243) the Hoare annotation is: (let ((.cse0 (<= 0 ~send1)) (.cse1 (<= ~send1 127)) (.cse2 (= 0 (+ ~nomsg 1)))) (or (and .cse0 (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) (= ~mode2 (* 256 (div ~mode2 256))) .cse1 .cse2 (<= ~r1 (* 256 (div ~r1 256)))) (and (not (= ~p1_old ~nomsg)) .cse0 (<= 1 ~mode2) (<= ~mode2 1) .cse1 .cse2))) [2018-09-30 10:28:23,298 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 66 372) no Hoare annotation was computed. [2018-09-30 10:28:23,299 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 371) no Hoare annotation was computed. [2018-09-30 10:28:23,299 INFO L422 ceAbstractionStarter]: At program point L277(lines 277 287) the Hoare annotation is: (let ((.cse7 (not (= ~p1_old ~nomsg))) (.cse0 (<= 0 ~send1)) (.cse1 (<= 1 ~mode2)) (.cse2 (<= ~mode2 1)) (.cse3 (not (= ~p1_new ~nomsg))) (.cse4 (<= ~send1 127)) (.cse5 (= 0 (+ ~nomsg 1))) (.cse6 (<= ~r1 (* 256 (div ~r1 256))))) (or (and .cse0 (= ~mode3 (* 256 (div ~mode3 256))) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse0 (exists ((v_~r1_9 Int)) (let ((.cse8 (mod v_~r1_9 256))) (and (= (+ .cse8 1) ~r1) (<= .cse8 0)))) .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse0 (= ULTIMATE.start_assert_~arg 1) .cse1 .cse2 (<= 1 ULTIMATE.start_check_~tmp~85) .cse3 .cse4 .cse5 .cse6))) [2018-09-30 10:28:23,299 INFO L422 ceAbstractionStarter]: At program point L339(lines 335 346) the Hoare annotation is: (let ((.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 0 ~send1)) (.cse2 (<= 1 ~mode2)) (.cse3 (<= ~mode2 1)) (.cse4 (<= ~send1 127)) (.cse5 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= ~r1 (* 256 (div ~r1 256)))) (and .cse0 .cse1 (exists ((v_~r1_9 Int)) (let ((.cse6 (mod v_~r1_9 256))) (and (= (+ .cse6 1) ~r1) (<= .cse6 0)))) .cse2 .cse3 .cse4 .cse5))) [2018-09-30 10:28:23,299 INFO L422 ceAbstractionStarter]: At program point L360(lines 360 367) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (<= 0 ~send1) (= ULTIMATE.start_assert_~arg 1) (<= 1 ~mode2) (<= ~mode2 1) (<= 1 ULTIMATE.start_check_~tmp~85) (<= ~send1 127) (= 0 (+ ~nomsg 1))) [2018-09-30 10:28:23,300 INFO L422 ceAbstractionStarter]: At program point L294(lines 286 295) the Hoare annotation is: (let ((.cse0 (<= 0 ~send1)) (.cse2 (<= 1 ~mode2)) (.cse3 (<= ~mode2 1)) (.cse4 (not (= ~p1_new ~nomsg))) (.cse5 (<= ~send1 127)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and (not (= ~p1_old ~nomsg)) .cse0 (exists ((v_~r1_9 Int)) (let ((.cse1 (mod v_~r1_9 256))) (and (= (+ .cse1 1) ~r1) (<= .cse1 0)))) .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 (<= ~r1 (* 256 (div ~r1 256)))))) [2018-09-30 10:28:23,300 INFO L422 ceAbstractionStarter]: At program point L369(lines 224 369) the Hoare annotation is: (let ((.cse0 (<= 0 ~send1)) (.cse1 (<= ~send1 127)) (.cse2 (= 0 (+ ~nomsg 1)))) (or (and .cse0 (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) (= ~mode2 (* 256 (div ~mode2 256))) .cse1 .cse2 (<= ~r1 (* 256 (div ~r1 256)))) (and (not (= ~p1_old ~nomsg)) .cse0 (<= 1 ~mode2) (<= ~mode2 1) .cse1 .cse2))) [2018-09-30 10:28:23,300 INFO L422 ceAbstractionStarter]: At program point L299(lines 299 309) the Hoare annotation is: (let ((.cse0 (<= 0 ~send1)) (.cse2 (<= 1 ~mode2)) (.cse3 (<= ~mode2 1)) (.cse4 (not (= ~p1_new ~nomsg))) (.cse5 (<= ~send1 127)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and (not (= ~p1_old ~nomsg)) .cse0 (exists ((v_~r1_9 Int)) (let ((.cse1 (mod v_~r1_9 256))) (and (= (+ .cse1 1) ~r1) (<= .cse1 0)))) .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 (<= ~r1 (* 256 (div ~r1 256)))))) [2018-09-30 10:28:23,309 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,310 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,318 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,319 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,321 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,322 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,324 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,324 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,326 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,326 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,327 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,327 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,330 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,330 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,331 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,332 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,334 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,334 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,336 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,336 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,338 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,339 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,341 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,341 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,342 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,343 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,344 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,344 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,345 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,346 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,347 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,347 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,349 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,349 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,351 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,351 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,354 INFO L202 PluginConnector]: Adding new model pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 10:28:23 BoogieIcfgContainer [2018-09-30 10:28:23,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 10:28:23,355 INFO L168 Benchmark]: Toolchain (without parser) took 8613.84 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 35.7 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -24.9 MB). Peak memory consumption was 489.5 MB. Max. memory is 7.1 GB. [2018-09-30 10:28:23,357 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 10:28:23,357 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.19 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. [2018-09-30 10:28:23,358 INFO L168 Benchmark]: Boogie Preprocessor took 56.77 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. [2018-09-30 10:28:23,358 INFO L168 Benchmark]: RCFGBuilder took 692.69 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. [2018-09-30 10:28:23,359 INFO L168 Benchmark]: TraceAbstraction took 7807.78 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 35.7 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -67.1 MB). Peak memory consumption was 447.2 MB. Max. memory is 7.1 GB. [2018-09-30 10:28:23,364 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.19 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 56.77 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 692.69 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 7807.78 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 35.7 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -67.1 MB). Peak memory consumption was 447.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 371]: 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: 242]: Loop Invariant [2018-09-30 10:28:23,376 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,376 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,377 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,378 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: ((((((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && assert_~arg == 1) && 1 <= check_~tmp~85) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1)) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && ~mode1 == 256 * (~mode1 / 256)) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1)) || ((((((0 <= ~send1 && ~mode3 == 256 * (~mode3 / 256)) && !(~p1_new == ~nomsg)) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) - InvariantResult [Line: 366]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 264]: Loop Invariant [2018-09-30 10:28:23,379 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,379 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,381 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,381 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: ((((((((0 <= ~send1 && ~mode3 == 256 * (~mode3 / 256)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1)) || (((((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && assert_~arg == 1) && 1 <= ~mode2) && ~mode2 <= 1) && 1 <= check_~tmp~85) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 286]: Loop Invariant [2018-09-30 10:28:23,382 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,382 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,383 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,383 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: (((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) || ((((((0 <= ~send1 && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: ((((((0 <= ~send1 && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1) - InvariantResult [Line: 330]: Loop Invariant [2018-09-30 10:28:23,385 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,385 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,386 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,386 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1) - InvariantResult [Line: 255]: Loop Invariant [2018-09-30 10:28:23,387 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,387 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,389 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,389 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: ((((((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && assert_~arg == 1) && 1 <= check_~tmp~85) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1)) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && ~mode1 == 256 * (~mode1 / 256)) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1)) || ((((((0 <= ~send1 && ~mode3 == 256 * (~mode3 / 256)) && !(~p1_new == ~nomsg)) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) - InvariantResult [Line: 277]: Loop Invariant [2018-09-30 10:28:23,390 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,390 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,391 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,392 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: ((((((((0 <= ~send1 && ~mode3 == 256 * (~mode3 / 256)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1)) || (((((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && assert_~arg == 1) && 1 <= ~mode2) && ~mode2 <= 1) && 1 <= check_~tmp~85) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 345]: Loop Invariant Derived loop invariant: (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && 1 <= check_~tmp~85) && ~send1 <= 127) && 0 == ~nomsg + 1 - InvariantResult [Line: 335]: Loop Invariant [2018-09-30 10:28:23,393 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,393 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,394 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,394 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1) - InvariantResult [Line: 299]: Loop Invariant [2018-09-30 10:28:23,395 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,395 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,396 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,396 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: (((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) || ((((((0 <= ~send1 && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && assert_~arg == 1) && 1 <= ~mode2) && ~mode2 <= 1) && 1 <= check_~tmp~85) && ~send1 <= 127) && 0 == ~nomsg + 1 - InvariantResult [Line: 308]: Loop Invariant [2018-09-30 10:28:23,397 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,397 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,398 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 10:28:23,398 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: (((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) || ((((((0 <= ~send1 && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 224]: Loop Invariant Derived loop invariant: ((((((0 <= ~send1 && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. SAFE Result, 7.6s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 2.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 209 SDtfs, 199 SDslu, 164 SDs, 0 SdLazy, 212 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 93 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 14 PreInvPairs, 176 NumberOfFragments, 1074 HoareAnnotationTreeSize, 14 FomulaSimplifications, 7061 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 14 FomulaSimplificationsInter, 75 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 226 NumberOfCodeBlocks, 226 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 217 ConstructedInterpolants, 8 QuantifiedInterpolants, 19798 SizeOfPredicates, 1 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 118/130 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-30_10-28-23-405.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_10-28-23-405.csv Received shutdown request...