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-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-133090d [2018-10-04 09:20:51,684 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 09:20:51,686 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 09:20:51,701 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 09:20:51,702 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 09:20:51,703 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 09:20:51,704 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 09:20:51,706 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 09:20:51,707 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 09:20:51,708 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 09:20:51,709 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 09:20:51,710 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 09:20:51,710 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 09:20:51,711 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 09:20:51,713 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 09:20:51,713 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 09:20:51,714 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 09:20:51,716 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 09:20:51,718 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 09:20:51,720 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 09:20:51,721 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 09:20:51,722 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 09:20:51,724 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 09:20:51,725 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 09:20:51,725 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 09:20:51,726 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 09:20:51,727 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 09:20:51,728 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 09:20:51,729 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 09:20:51,733 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 09:20:51,733 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 09:20:51,734 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 09:20:51,734 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 09:20:51,734 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 09:20:51,738 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 09:20:51,739 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 09:20:51,739 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 [2018-10-04 09:20:51,769 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 09:20:51,769 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 09:20:51,770 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 09:20:51,770 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 09:20:51,771 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 09:20:51,771 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 09:20:51,771 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 09:20:51,771 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 09:20:51,772 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 09:20:51,772 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 09:20:51,772 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 09:20:51,772 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 09:20:51,772 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 09:20:51,773 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 09:20:51,773 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 09:20:51,773 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 09:20:51,773 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 09:20:51,773 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 09:20:51,774 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 09:20:51,774 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 09:20:51,774 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 09:20:51,774 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 09:20:51,774 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 09:20:51,775 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 09:20:51,775 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 09:20:51,775 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 09:20:51,775 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 09:20:51,775 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 09:20:51,775 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 09:20:51,776 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 09:20:51,830 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 09:20:51,842 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 09:20:51,846 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 09:20:51,847 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 09:20:51,848 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 09:20:51,849 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl [2018-10-04 09:20:51,849 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl' [2018-10-04 09:20:51,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 09:20:51,925 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 09:20:51,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 09:20:51,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 09:20:51,926 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 09:20:51,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:51" (1/1) ... [2018-10-04 09:20:51,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:51" (1/1) ... [2018-10-04 09:20:51,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 09:20:51,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 09:20:51,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 09:20:51,972 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 09:20:51,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:51" (1/1) ... [2018-10-04 09:20:51,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:51" (1/1) ... [2018-10-04 09:20:51,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:51" (1/1) ... [2018-10-04 09:20:51,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:51" (1/1) ... [2018-10-04 09:20:52,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:51" (1/1) ... [2018-10-04 09:20:52,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:51" (1/1) ... [2018-10-04 09:20:52,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:51" (1/1) ... [2018-10-04 09:20:52,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 09:20:52,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 09:20:52,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 09:20:52,016 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 09:20:52,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:51" (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 [2018-10-04 09:20:52,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 09:20:52,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 09:20:52,645 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 09:20:52,646 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:20:52 BoogieIcfgContainer [2018-10-04 09:20:52,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 09:20:52,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 09:20:52,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 09:20:52,651 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 09:20:52,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:51" (1/2) ... [2018-10-04 09:20:52,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252524d8 and model type pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 09:20:52, skipping insertion in model container [2018-10-04 09:20:52,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:20:52" (2/2) ... [2018-10-04 09:20:52,654 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl [2018-10-04 09:20:52,665 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 09:20:52,673 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 09:20:52,714 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 09:20:52,715 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 09:20:52,715 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 09:20:52,716 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 09:20:52,716 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 09:20:52,716 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 09:20:52,716 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 09:20:52,716 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 09:20:52,716 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 09:20:52,731 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2018-10-04 09:20:52,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 09:20:52,738 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:52,739 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-04 09:20:52,740 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:52,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:52,746 INFO L82 PathProgramCache]: Analyzing trace with hash -100896173, now seen corresponding path program 1 times [2018-10-04 09:20:52,748 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:52,749 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:52,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:52,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:52,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:52,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:20:52,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:20:52,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-04 09:20:53,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 09:20:53,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 09:20:53,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 09:20:53,014 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2018-10-04 09:20:53,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:53,100 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2018-10-04 09:20:53,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 09:20:53,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-10-04 09:20:53,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:53,113 INFO L225 Difference]: With dead ends: 39 [2018-10-04 09:20:53,113 INFO L226 Difference]: Without dead ends: 25 [2018-10-04 09:20:53,118 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 [2018-10-04 09:20:53,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-10-04 09:20:53,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2018-10-04 09:20:53,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-04 09:20:53,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2018-10-04 09:20:53,157 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 12 [2018-10-04 09:20:53,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:53,157 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2018-10-04 09:20:53,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 09:20:53,158 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2018-10-04 09:20:53,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 09:20:53,158 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:53,159 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-04 09:20:53,159 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:53,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:53,159 INFO L82 PathProgramCache]: Analyzing trace with hash -100955755, now seen corresponding path program 1 times [2018-10-04 09:20:53,159 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:53,160 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:53,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:53,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:53,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:20:53,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:20:53,330 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-04 09:20:53,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-04 09:20:53,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-04 09:20:53,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-04 09:20:53,332 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand 4 states. [2018-10-04 09:20:53,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:53,438 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2018-10-04 09:20:53,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-04 09:20:53,439 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-10-04 09:20:53,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:53,440 INFO L225 Difference]: With dead ends: 46 [2018-10-04 09:20:53,440 INFO L226 Difference]: Without dead ends: 44 [2018-10-04 09:20:53,441 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 [2018-10-04 09:20:53,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-04 09:20:53,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 25. [2018-10-04 09:20:53,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-10-04 09:20:53,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2018-10-04 09:20:53,451 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 12 [2018-10-04 09:20:53,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:53,452 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2018-10-04 09:20:53,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-04 09:20:53,452 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2018-10-04 09:20:53,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 09:20:53,453 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:53,453 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-04 09:20:53,453 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:53,454 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:53,454 INFO L82 PathProgramCache]: Analyzing trace with hash -493923183, now seen corresponding path program 1 times [2018-10-04 09:20:53,454 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:53,454 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:53,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:53,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:53,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:53,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:20:53,554 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:20:53,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-04 09:20:53,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 09:20:53,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 09:20:53,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 09:20:53,555 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 3 states. [2018-10-04 09:20:53,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:53,580 INFO L93 Difference]: Finished difference Result 55 states and 71 transitions. [2018-10-04 09:20:53,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 09:20:53,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-10-04 09:20:53,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:53,582 INFO L225 Difference]: With dead ends: 55 [2018-10-04 09:20:53,582 INFO L226 Difference]: Without dead ends: 41 [2018-10-04 09:20:53,583 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 [2018-10-04 09:20:53,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-10-04 09:20:53,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2018-10-04 09:20:53,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-04 09:20:53,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2018-10-04 09:20:53,596 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 12 [2018-10-04 09:20:53,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:53,596 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2018-10-04 09:20:53,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 09:20:53,596 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2018-10-04 09:20:53,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-04 09:20:53,597 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:53,597 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-04 09:20:53,598 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:53,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:53,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1628792711, now seen corresponding path program 1 times [2018-10-04 09:20:53,598 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:53,599 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:53,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:53,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:53,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:53,706 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:20:53,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:20:53,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-04 09:20:53,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 09:20:53,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 09:20:53,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 09:20:53,709 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 3 states. [2018-10-04 09:20:53,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:53,775 INFO L93 Difference]: Finished difference Result 111 states and 144 transitions. [2018-10-04 09:20:53,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 09:20:53,778 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-10-04 09:20:53,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:53,780 INFO L225 Difference]: With dead ends: 111 [2018-10-04 09:20:53,780 INFO L226 Difference]: Without dead ends: 75 [2018-10-04 09:20:53,781 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 [2018-10-04 09:20:53,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-10-04 09:20:53,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2018-10-04 09:20:53,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-10-04 09:20:53,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2018-10-04 09:20:53,824 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 22 [2018-10-04 09:20:53,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:53,824 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2018-10-04 09:20:53,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 09:20:53,828 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2018-10-04 09:20:53,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-04 09:20:53,829 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:53,829 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-04 09:20:53,830 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:53,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:53,830 INFO L82 PathProgramCache]: Analyzing trace with hash -819446085, now seen corresponding path program 1 times [2018-10-04 09:20:53,830 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:53,831 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:53,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:53,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:53,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:53,971 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:20:53,971 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:20:53,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-04 09:20:53,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 09:20:53,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 09:20:53,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 09:20:53,973 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand 3 states. [2018-10-04 09:20:54,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:54,055 INFO L93 Difference]: Finished difference Result 213 states and 273 transitions. [2018-10-04 09:20:54,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 09:20:54,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-10-04 09:20:54,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:54,059 INFO L225 Difference]: With dead ends: 213 [2018-10-04 09:20:54,059 INFO L226 Difference]: Without dead ends: 143 [2018-10-04 09:20:54,060 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 [2018-10-04 09:20:54,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-10-04 09:20:54,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2018-10-04 09:20:54,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-10-04 09:20:54,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 176 transitions. [2018-10-04 09:20:54,099 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 176 transitions. Word has length 22 [2018-10-04 09:20:54,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:54,099 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 176 transitions. [2018-10-04 09:20:54,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 09:20:54,100 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 176 transitions. [2018-10-04 09:20:54,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-04 09:20:54,104 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:54,105 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-04 09:20:54,105 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:54,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:54,105 INFO L82 PathProgramCache]: Analyzing trace with hash -762187783, now seen corresponding path program 1 times [2018-10-04 09:20:54,106 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:54,106 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:54,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:54,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:54,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:54,428 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:20:54,428 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:20:54,428 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 [2018-10-04 09:20:54,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:54,533 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:20:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-04 09:20:54,748 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 09:20:54,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-10-04 09:20:54,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-04 09:20:54,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-04 09:20:54,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-04 09:20:54,750 INFO L87 Difference]: Start difference. First operand 141 states and 176 transitions. Second operand 7 states. [2018-10-04 09:20:55,322 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-04 09:20:55,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:55,887 INFO L93 Difference]: Finished difference Result 311 states and 390 transitions. [2018-10-04 09:20:55,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-04 09:20:55,890 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-10-04 09:20:55,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:55,892 INFO L225 Difference]: With dead ends: 311 [2018-10-04 09:20:55,892 INFO L226 Difference]: Without dead ends: 213 [2018-10-04 09:20:55,898 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-10-04 09:20:55,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2018-10-04 09:20:55,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 177. [2018-10-04 09:20:55,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-10-04 09:20:55,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 212 transitions. [2018-10-04 09:20:55,977 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 212 transitions. Word has length 22 [2018-10-04 09:20:55,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:55,978 INFO L480 AbstractCegarLoop]: Abstraction has 177 states and 212 transitions. [2018-10-04 09:20:55,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-04 09:20:55,981 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 212 transitions. [2018-10-04 09:20:55,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-04 09:20:55,984 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:55,984 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2018-10-04 09:20:55,985 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:55,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:55,985 INFO L82 PathProgramCache]: Analyzing trace with hash 518092167, now seen corresponding path program 2 times [2018-10-04 09:20:55,986 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:55,986 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:55,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:55,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:55,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-10-04 09:20:56,103 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:20:56,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-04 09:20:56,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 09:20:56,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 09:20:56,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 09:20:56,106 INFO L87 Difference]: Start difference. First operand 177 states and 212 transitions. Second operand 3 states. [2018-10-04 09:20:56,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:56,188 INFO L93 Difference]: Finished difference Result 325 states and 390 transitions. [2018-10-04 09:20:56,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 09:20:56,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2018-10-04 09:20:56,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:56,190 INFO L225 Difference]: With dead ends: 325 [2018-10-04 09:20:56,190 INFO L226 Difference]: Without dead ends: 151 [2018-10-04 09:20:56,192 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 [2018-10-04 09:20:56,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-10-04 09:20:56,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 133. [2018-10-04 09:20:56,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-10-04 09:20:56,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 152 transitions. [2018-10-04 09:20:56,225 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 152 transitions. Word has length 42 [2018-10-04 09:20:56,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:56,225 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 152 transitions. [2018-10-04 09:20:56,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 09:20:56,225 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 152 transitions. [2018-10-04 09:20:56,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-04 09:20:56,227 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:56,227 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2018-10-04 09:20:56,228 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:56,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:56,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1324768879, now seen corresponding path program 3 times [2018-10-04 09:20:56,228 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:56,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:56,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:56,230 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 09:20:56,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:56,359 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-10-04 09:20:56,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:20:56,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-04 09:20:56,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 09:20:56,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 09:20:56,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 09:20:56,361 INFO L87 Difference]: Start difference. First operand 133 states and 152 transitions. Second operand 3 states. [2018-10-04 09:20:56,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:56,385 INFO L93 Difference]: Finished difference Result 151 states and 171 transitions. [2018-10-04 09:20:56,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 09:20:56,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-10-04 09:20:56,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:56,386 INFO L225 Difference]: With dead ends: 151 [2018-10-04 09:20:56,387 INFO L226 Difference]: Without dead ends: 0 [2018-10-04 09:20:56,388 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 [2018-10-04 09:20:56,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-04 09:20:56,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-04 09:20:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-04 09:20:56,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-04 09:20:56,389 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2018-10-04 09:20:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:56,389 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-04 09:20:56,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 09:20:56,389 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-04 09:20:56,390 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-04 09:20:56,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-04 09:20:56,416 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-04 09:20:57,059 WARN L178 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-10-04 09:20:57,418 WARN L178 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-10-04 09:20:57,642 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 57 309) no Hoare annotation was computed. [2018-10-04 09:20:57,643 INFO L421 ceAbstractionStarter]: At program point L287(lines 282 288) the Hoare annotation is: (and (<= ~send3 127) (<= 1 ~mode1) (<= ~mode1 1) (<= 1 ULTIMATE.start_check_~tmp~76) (<= ~mode3 1) (<= 1 ~mode3) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))) (<= 0 ~send3) (not (= ~p3_old ~nomsg))) [2018-10-04 09:20:57,643 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 308) no Hoare annotation was computed. [2018-10-04 09:20:57,643 INFO L421 ceAbstractionStarter]: At program point L221(lines 212 222) the Hoare annotation is: (and (<= ~send3 127) (= ~mode3 (* 256 (div ~mode3 256))) (<= 1 ~mode1) (<= ~mode1 1) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))) (<= 0 ~send3)) [2018-10-04 09:20:57,643 INFO L421 ceAbstractionStarter]: At program point L246(lines 246 258) the Hoare annotation is: (and (<= ~send3 127) (= ~mode3 (* 256 (div ~mode3 256))) (<= 1 ~mode1) (<= ~mode1 1) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))) (<= 0 ~send3)) [2018-10-04 09:20:57,644 INFO L421 ceAbstractionStarter]: At program point L306(lines 198 306) the Hoare annotation is: (let ((.cse0 (<= ~send3 127)) (.cse1 (= 0 (+ ~nomsg 1))) (.cse2 (<= ~r1 (* 256 (div ~r1 256)))) (.cse3 (<= 0 ~send3))) (or (and .cse0 (<= 1 ~mode1) (<= ~mode1 1) (<= ~mode3 1) (<= 1 ~mode3) .cse1 .cse2 .cse3 (not (= ~p3_old ~nomsg))) (and .cse0 (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) .cse1 .cse2 .cse3))) [2018-10-04 09:20:57,644 INFO L421 ceAbstractionStarter]: At program point L205(lines 205 213) the Hoare annotation is: (let ((.cse0 (<= ~send3 127)) (.cse1 (= 0 (+ ~nomsg 1))) (.cse2 (<= ~r1 (* 256 (div ~r1 256)))) (.cse3 (<= 0 ~send3))) (or (and .cse0 (<= 1 ~mode1) (<= ~mode1 1) (<= ~mode3 1) (<= 1 ~mode3) .cse1 .cse2 .cse3 (not (= ~p3_old ~nomsg))) (and .cse0 (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) .cse1 .cse2 .cse3))) [2018-10-04 09:20:57,644 INFO L421 ceAbstractionStarter]: At program point L226(lines 226 236) the Hoare annotation is: (and (<= ~send3 127) (= ~mode3 (* 256 (div ~mode3 256))) (<= 1 ~mode1) (<= ~mode1 1) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))) (<= 0 ~send3)) [2018-10-04 09:20:57,644 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 57 309) no Hoare annotation was computed. [2018-10-04 09:20:57,645 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 57 309) no Hoare annotation was computed. [2018-10-04 09:20:57,645 INFO L421 ceAbstractionStarter]: At program point L276(lines 276 283) the Hoare annotation is: (and (<= ~send3 127) (<= 1 ~mode1) (<= ~mode1 1) (<= ~mode3 1) (<= 1 ~mode3) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))) (<= 0 ~send3) (not (= ~p3_old ~nomsg))) [2018-10-04 09:20:57,645 INFO L421 ceAbstractionStarter]: At program point L241(lines 235 242) the Hoare annotation is: (and (<= ~send3 127) (= ~mode3 (* 256 (div ~mode3 256))) (<= 1 ~mode1) (<= ~mode1 1) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))) (<= 0 ~send3)) [2018-10-04 09:20:57,645 INFO L421 ceAbstractionStarter]: At program point L303(lines 303 307) the Hoare annotation is: false [2018-10-04 09:20:57,645 INFO L421 ceAbstractionStarter]: At program point L297(lines 297 304) the Hoare annotation is: (and (<= ULTIMATE.start_assert_~arg 1) (<= (mod ~r1 256) 0) (<= ~send3 127) (<= 1 ~mode1) (<= ~mode1 1) (<= 1 ULTIMATE.start_check_~tmp~76) (<= ~mode3 1) (<= 1 ~mode3) (= 0 (+ ~nomsg 1)) (<= 1 ULTIMATE.start_assert_~arg) (<= 0 ~send3) (not (= ~p3_old ~nomsg))) [2018-10-04 09:20:57,646 INFO L421 ceAbstractionStarter]: At program point L264(lines 257 265) the Hoare annotation is: (and (<= ~send3 127) (<= 1 ~mode1) (<= ~mode1 1) (<= ~mode3 1) (not (= ~p3_new ~nomsg)) (<= 1 ~mode3) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))) (<= 0 ~send3)) [2018-10-04 09:20:57,663 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 09:20:57 BoogieIcfgContainer [2018-10-04 09:20:57,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-04 09:20:57,665 INFO L168 Benchmark]: Toolchain (without parser) took 5740.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 298.7 MB). Peak memory consumption was 298.7 MB. Max. memory is 7.1 GB. [2018-10-04 09:20:57,666 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. [2018-10-04 09:20:57,667 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.82 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. [2018-10-04 09:20:57,667 INFO L168 Benchmark]: Boogie Preprocessor took 42.95 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. [2018-10-04 09:20:57,668 INFO L168 Benchmark]: RCFGBuilder took 631.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-04 09:20:57,669 INFO L168 Benchmark]: TraceAbstraction took 5016.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 267.0 MB). Peak memory consumption was 267.0 MB. Max. memory is 7.1 GB. [2018-10-04 09:20:57,673 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 44.82 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 42.95 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 631.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5016.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 267.0 MB). Peak memory consumption was 267.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 308]: 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: 282]: Loop Invariant Derived loop invariant: ((((((((~send3 <= 127 && 1 <= ~mode1) && ~mode1 <= 1) && 1 <= check_~tmp~76) && ~mode3 <= 1) && 1 <= ~mode3) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && 0 <= ~send3) && !(~p3_old == ~nomsg) - InvariantResult [Line: 303]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 246]: Loop Invariant Derived loop invariant: (((((~send3 <= 127 && ~mode3 == 256 * (~mode3 / 256)) && 1 <= ~mode1) && ~mode1 <= 1) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && 0 <= ~send3 - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: ((((((((~send3 <= 127 && 1 <= ~mode1) && ~mode1 <= 1) && ~mode3 <= 1) && 1 <= ~mode3) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && 0 <= ~send3) && !(~p3_old == ~nomsg)) || (((((~send3 <= 127 && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && 0 <= ~send3) - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: (((((~send3 <= 127 && ~mode3 == 256 * (~mode3 / 256)) && 1 <= ~mode1) && ~mode1 <= 1) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && 0 <= ~send3 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: (((((~send3 <= 127 && ~mode3 == 256 * (~mode3 / 256)) && 1 <= ~mode1) && ~mode1 <= 1) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && 0 <= ~send3 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: ((((((((~send3 <= 127 && 1 <= ~mode1) && ~mode1 <= 1) && ~mode3 <= 1) && 1 <= ~mode3) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && 0 <= ~send3) && !(~p3_old == ~nomsg)) || (((((~send3 <= 127 && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && 0 <= ~send3) - InvariantResult [Line: 212]: Loop Invariant Derived loop invariant: (((((~send3 <= 127 && ~mode3 == 256 * (~mode3 / 256)) && 1 <= ~mode1) && ~mode1 <= 1) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && 0 <= ~send3 - InvariantResult [Line: 257]: Loop Invariant Derived loop invariant: (((((((~send3 <= 127 && 1 <= ~mode1) && ~mode1 <= 1) && ~mode3 <= 1) && !(~p3_new == ~nomsg)) && 1 <= ~mode3) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && 0 <= ~send3 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: ((((((((((assert_~arg <= 1 && ~r1 % 256 <= 0) && ~send3 <= 127) && 1 <= ~mode1) && ~mode1 <= 1) && 1 <= check_~tmp~76) && ~mode3 <= 1) && 1 <= ~mode3) && 0 == ~nomsg + 1) && 1 <= assert_~arg) && 0 <= ~send3) && !(~p3_old == ~nomsg) - InvariantResult [Line: 276]: Loop Invariant Derived loop invariant: (((((((~send3 <= 127 && 1 <= ~mode1) && ~mode1 <= 1) && ~mode3 <= 1) && 1 <= ~mode3) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && 0 <= ~send3) && !(~p3_old == ~nomsg) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 1.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 168 SDtfs, 136 SDslu, 136 SDs, 0 SdLazy, 142 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=177occurred 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, 81 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 31 NumberOfFragments, 417 HoareAnnotationTreeSize, 11 FomulaSimplifications, 699 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 11 FomulaSimplificationsInter, 62 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 209 ConstructedInterpolants, 6 QuantifiedInterpolants, 18623 SizeOfPredicates, 1 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 192/200 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_09-20-57-691.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c_11.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-04_09-20-57-691.csv Received shutdown request...