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.4.1.ufo.UNBOUNDED.pals.c_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b2fde6a [2018-09-28 10:08:34,446 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-28 10:08:34,449 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-28 10:08:34,462 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-28 10:08:34,463 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-28 10:08:34,464 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-28 10:08:34,465 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-28 10:08:34,468 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-28 10:08:34,471 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-28 10:08:34,471 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-28 10:08:34,474 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-28 10:08:34,516 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 [2018-09-28 10:08:34,540 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-28 10:08:34,543 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-28 10:08:34,544 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-28 10:08:34,545 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-28 10:08:34,545 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-28 10:08:34,547 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-28 10:08:34,547 INFO L133 SettingsManager]: * Use SBE=true [2018-09-28 10:08:34,547 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-28 10:08:34,547 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-28 10:08:34,548 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-28 10:08:34,548 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-28 10:08:34,548 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-28 10:08:34,548 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-28 10:08:34,549 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-28 10:08:34,549 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-28 10:08:34,549 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-28 10:08:34,549 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-28 10:08:34,550 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-28 10:08:34,550 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-28 10:08:34,550 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-28 10:08:34,550 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-28 10:08:34,550 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-28 10:08:34,551 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-28 10:08:34,551 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-28 10:08:34,551 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-28 10:08:34,551 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-28 10:08:34,553 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-28 10:08:34,553 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-28 10:08:34,553 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-28 10:08:34,553 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-28 10:08:34,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-28 10:08:34,622 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-28 10:08:34,626 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-28 10:08:34,628 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-28 10:08:34,628 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-28 10:08:34,629 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl [2018-09-28 10:08:34,629 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl' [2018-09-28 10:08:34,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-28 10:08:34,714 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-28 10:08:34,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-28 10:08:34,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-28 10:08:34,715 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-28 10:08:34,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:08:34" (1/1) ... [2018-09-28 10:08:34,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:08:34" (1/1) ... [2018-09-28 10:08:34,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-28 10:08:34,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-28 10:08:34,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-28 10:08:34,761 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-28 10:08:34,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:08:34" (1/1) ... [2018-09-28 10:08:34,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:08:34" (1/1) ... [2018-09-28 10:08:34,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:08:34" (1/1) ... [2018-09-28 10:08:34,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:08:34" (1/1) ... [2018-09-28 10:08:34,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:08:34" (1/1) ... [2018-09-28 10:08:34,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:08:34" (1/1) ... [2018-09-28 10:08:34,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:08:34" (1/1) ... [2018-09-28 10:08:34,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-28 10:08:34,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-28 10:08:34,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-28 10:08:34,816 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-28 10:08:34,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:08:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-28 10:08:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-28 10:08:34,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-28 10:08:35,434 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-28 10:08:35,435 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 10:08:35 BoogieIcfgContainer [2018-09-28 10:08:35,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-28 10:08:35,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-28 10:08:35,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-28 10:08:35,439 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-28 10:08:35,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:08:34" (1/2) ... [2018-09-28 10:08:35,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1c6b26 and model type pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.09 10:08:35, skipping insertion in model container [2018-09-28 10:08:35,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 10:08:35" (2/2) ... [2018-09-28 10:08:35,442 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl [2018-09-28 10:08:35,452 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-28 10:08:35,460 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-28 10:08:35,507 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-28 10:08:35,508 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-28 10:08:35,508 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-28 10:08:35,509 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-28 10:08:35,509 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-28 10:08:35,509 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-28 10:08:35,509 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-28 10:08:35,509 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-28 10:08:35,509 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-28 10:08:35,529 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-09-28 10:08:35,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 10:08:35,538 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:08:35,539 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-28 10:08:35,540 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:08:35,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:08:35,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1823027031, now seen corresponding path program 1 times [2018-09-28 10:08:35,549 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:08:35,549 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:08:35,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:35,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:08:35,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:08:35,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:08:35,788 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:08:35,788 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-28 10:08:35,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-28 10:08:35,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-28 10:08:35,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-28 10:08:35,809 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-09-28 10:08:35,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:08:35,876 INFO L93 Difference]: Finished difference Result 45 states and 62 transitions. [2018-09-28 10:08:35,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-28 10:08:35,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-28 10:08:35,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:08:35,890 INFO L225 Difference]: With dead ends: 45 [2018-09-28 10:08:35,891 INFO L226 Difference]: Without dead ends: 29 [2018-09-28 10:08:35,895 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 [2018-09-28 10:08:35,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-09-28 10:08:35,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-09-28 10:08:35,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-09-28 10:08:35,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2018-09-28 10:08:35,938 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2018-09-28 10:08:35,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:08:35,939 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2018-09-28 10:08:35,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-28 10:08:35,939 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2018-09-28 10:08:35,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 10:08:35,940 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:08:35,940 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-28 10:08:35,940 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:08:35,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:08:35,941 INFO L82 PathProgramCache]: Analyzing trace with hash 2081192469, now seen corresponding path program 1 times [2018-09-28 10:08:35,941 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:08:35,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:08:35,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:35,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:08:35,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:08:36,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:08:36,091 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:08:36,091 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-28 10:08:36,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-28 10:08:36,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-28 10:08:36,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-28 10:08:36,094 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 3 states. [2018-09-28 10:08:36,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:08:36,174 INFO L93 Difference]: Finished difference Result 79 states and 109 transitions. [2018-09-28 10:08:36,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-28 10:08:36,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-28 10:08:36,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:08:36,177 INFO L225 Difference]: With dead ends: 79 [2018-09-28 10:08:36,177 INFO L226 Difference]: Without dead ends: 53 [2018-09-28 10:08:36,181 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 [2018-09-28 10:08:36,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-09-28 10:08:36,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2018-09-28 10:08:36,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-28 10:08:36,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2018-09-28 10:08:36,209 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 14 [2018-09-28 10:08:36,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:08:36,210 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2018-09-28 10:08:36,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-28 10:08:36,210 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2018-09-28 10:08:36,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 10:08:36,211 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:08:36,213 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-28 10:08:36,213 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:08:36,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:08:36,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1271845843, now seen corresponding path program 1 times [2018-09-28 10:08:36,214 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:08:36,214 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:08:36,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:36,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:08:36,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:08:36,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:08:36,410 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:08:36,410 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-28 10:08:36,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-28 10:08:36,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-28 10:08:36,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-28 10:08:36,412 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand 4 states. [2018-09-28 10:08:36,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:08:36,689 INFO L93 Difference]: Finished difference Result 109 states and 147 transitions. [2018-09-28 10:08:36,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-28 10:08:36,689 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-09-28 10:08:36,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:08:36,693 INFO L225 Difference]: With dead ends: 109 [2018-09-28 10:08:36,694 INFO L226 Difference]: Without dead ends: 107 [2018-09-28 10:08:36,695 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-28 10:08:36,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-09-28 10:08:36,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 59. [2018-09-28 10:08:36,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-09-28 10:08:36,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 78 transitions. [2018-09-28 10:08:36,717 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 78 transitions. Word has length 14 [2018-09-28 10:08:36,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:08:36,717 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 78 transitions. [2018-09-28 10:08:36,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-28 10:08:36,718 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 78 transitions. [2018-09-28 10:08:36,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 10:08:36,719 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:08:36,719 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-28 10:08:36,719 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:08:36,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:08:36,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1271905425, now seen corresponding path program 1 times [2018-09-28 10:08:36,720 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:08:36,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:08:36,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:36,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:08:36,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:08:36,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:08:36,812 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:08:36,813 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-28 10:08:36,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-28 10:08:36,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-28 10:08:36,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-28 10:08:36,814 INFO L87 Difference]: Start difference. First operand 59 states and 78 transitions. Second operand 3 states. [2018-09-28 10:08:36,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:08:36,914 INFO L93 Difference]: Finished difference Result 143 states and 190 transitions. [2018-09-28 10:08:36,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-28 10:08:36,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-28 10:08:36,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:08:36,921 INFO L225 Difference]: With dead ends: 143 [2018-09-28 10:08:36,922 INFO L226 Difference]: Without dead ends: 85 [2018-09-28 10:08:36,923 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 [2018-09-28 10:08:36,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-28 10:08:36,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-09-28 10:08:36,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-09-28 10:08:36,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 111 transitions. [2018-09-28 10:08:36,955 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 111 transitions. Word has length 14 [2018-09-28 10:08:36,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:08:36,955 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 111 transitions. [2018-09-28 10:08:36,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-28 10:08:36,955 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 111 transitions. [2018-09-28 10:08:36,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-28 10:08:36,957 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:08:36,957 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-28 10:08:36,957 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:08:36,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:08:36,958 INFO L82 PathProgramCache]: Analyzing trace with hash -602166477, now seen corresponding path program 1 times [2018-09-28 10:08:36,958 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:08:36,958 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:08:36,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:36,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:08:36,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:08:37,092 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:08:37,092 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:08:37,093 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-28 10:08:37,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-28 10:08:37,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-28 10:08:37,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-28 10:08:37,094 INFO L87 Difference]: Start difference. First operand 85 states and 111 transitions. Second operand 3 states. [2018-09-28 10:08:37,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:08:37,174 INFO L93 Difference]: Finished difference Result 249 states and 327 transitions. [2018-09-28 10:08:37,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-28 10:08:37,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-09-28 10:08:37,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:08:37,177 INFO L225 Difference]: With dead ends: 249 [2018-09-28 10:08:37,177 INFO L226 Difference]: Without dead ends: 167 [2018-09-28 10:08:37,182 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 [2018-09-28 10:08:37,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-09-28 10:08:37,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2018-09-28 10:08:37,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-09-28 10:08:37,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 212 transitions. [2018-09-28 10:08:37,231 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 212 transitions. Word has length 26 [2018-09-28 10:08:37,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:08:37,231 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 212 transitions. [2018-09-28 10:08:37,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-28 10:08:37,232 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 212 transitions. [2018-09-28 10:08:37,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-28 10:08:37,233 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:08:37,234 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-28 10:08:37,234 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:08:37,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:08:37,235 INFO L82 PathProgramCache]: Analyzing trace with hash -209139467, now seen corresponding path program 1 times [2018-09-28 10:08:37,235 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:08:37,235 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:08:37,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:37,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:08:37,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:08:37,348 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:08:37,348 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:08:37,348 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-28 10:08:37,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-28 10:08:37,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-28 10:08:37,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-28 10:08:37,350 INFO L87 Difference]: Start difference. First operand 165 states and 212 transitions. Second operand 3 states. [2018-09-28 10:08:37,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:08:37,467 INFO L93 Difference]: Finished difference Result 489 states and 630 transitions. [2018-09-28 10:08:37,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-28 10:08:37,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-09-28 10:08:37,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:08:37,470 INFO L225 Difference]: With dead ends: 489 [2018-09-28 10:08:37,470 INFO L226 Difference]: Without dead ends: 327 [2018-09-28 10:08:37,472 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 [2018-09-28 10:08:37,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2018-09-28 10:08:37,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 325. [2018-09-28 10:08:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2018-09-28 10:08:37,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 408 transitions. [2018-09-28 10:08:37,557 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 408 transitions. Word has length 26 [2018-09-28 10:08:37,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:08:37,559 INFO L480 AbstractCegarLoop]: Abstraction has 325 states and 408 transitions. [2018-09-28 10:08:37,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-28 10:08:37,559 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 408 transitions. [2018-09-28 10:08:37,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-28 10:08:37,565 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:08:37,565 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] [2018-09-28 10:08:37,567 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:08:37,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:08:37,568 INFO L82 PathProgramCache]: Analyzing trace with hash -266397769, now seen corresponding path program 1 times [2018-09-28 10:08:37,568 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:08:37,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:08:37,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:37,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:08:37,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:08:37,798 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-28 10:08:37,975 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:08:37,976 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-28 10:08:37,976 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-28 10:08:37,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:08:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:08:38,118 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-28 10:08:38,397 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-28 10:08:38,437 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-28 10:08:38,437 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-09-28 10:08:38,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-28 10:08:38,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-28 10:08:38,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-28 10:08:38,439 INFO L87 Difference]: Start difference. First operand 325 states and 408 transitions. Second operand 7 states. [2018-09-28 10:08:38,676 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-28 10:08:38,984 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-09-28 10:08:39,633 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-28 10:08:39,900 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-28 10:08:40,508 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-28 10:08:40,900 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-28 10:08:41,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:08:41,801 INFO L93 Difference]: Finished difference Result 737 states and 923 transitions. [2018-09-28 10:08:41,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-28 10:08:41,802 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-09-28 10:08:41,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:08:41,803 INFO L225 Difference]: With dead ends: 737 [2018-09-28 10:08:41,804 INFO L226 Difference]: Without dead ends: 265 [2018-09-28 10:08:41,807 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-09-28 10:08:41,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-09-28 10:08:41,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 247. [2018-09-28 10:08:41,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-09-28 10:08:41,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 286 transitions. [2018-09-28 10:08:41,859 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 286 transitions. Word has length 26 [2018-09-28 10:08:41,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:08:41,860 INFO L480 AbstractCegarLoop]: Abstraction has 247 states and 286 transitions. [2018-09-28 10:08:41,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-28 10:08:41,860 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 286 transitions. [2018-09-28 10:08:41,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-28 10:08:41,862 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:08:41,862 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2018-09-28 10:08:41,863 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:08:41,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:08:41,863 INFO L82 PathProgramCache]: Analyzing trace with hash 47747323, now seen corresponding path program 2 times [2018-09-28 10:08:41,863 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:08:41,864 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:08:41,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:41,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:08:41,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:08:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:08:41,936 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-09-28 10:08:41,937 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:08:41,937 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-28 10:08:41,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-28 10:08:41,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-28 10:08:41,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-28 10:08:41,938 INFO L87 Difference]: Start difference. First operand 247 states and 286 transitions. Second operand 3 states. [2018-09-28 10:08:41,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:08:41,950 INFO L93 Difference]: Finished difference Result 247 states and 286 transitions. [2018-09-28 10:08:41,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-28 10:08:41,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2018-09-28 10:08:41,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:08:41,951 INFO L225 Difference]: With dead ends: 247 [2018-09-28 10:08:41,951 INFO L226 Difference]: Without dead ends: 0 [2018-09-28 10:08:41,952 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 [2018-09-28 10:08:41,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-28 10:08:41,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-28 10:08:41,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-28 10:08:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-28 10:08:41,953 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-09-28 10:08:41,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:08:41,954 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-28 10:08:41,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-28 10:08:41,954 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-28 10:08:41,954 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-28 10:08:41,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-28 10:08:42,341 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-28 10:08:42,938 WARN L178 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-09-28 10:08:43,134 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-28 10:08:43,625 WARN L178 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2018-09-28 10:08:43,821 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-09-28 10:08:44,287 WARN L178 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-09-28 10:08:44,456 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-09-28 10:08:44,661 WARN L178 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2018-09-28 10:08:44,838 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 74 387) no Hoare annotation was computed. [2018-09-28 10:08:44,839 INFO L422 ceAbstractionStarter]: At program point L320(lines 314 321) the Hoare annotation is: (let ((.cse0 (<= 0 ~send1)) (.cse1 (<= 1 ~mode2)) (.cse2 (<= ~mode2 1)) (.cse3 (not (= ~p1_new ~nomsg))) (.cse4 (<= ~send1 127)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and (not (= ~p1_old ~nomsg)) .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((v_~r1_7 Int)) (let ((.cse5 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse5 1)) (<= .cse5 0)))) .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 (<= ~r1 (* 256 (div ~r1 256)))))) [2018-09-28 10:08:44,839 INFO L422 ceAbstractionStarter]: At program point L384(lines 253 384) 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))) [2018-09-28 10:08:44,839 INFO L422 ceAbstractionStarter]: At program point L285(lines 285 295) the Hoare annotation is: (let ((.cse6 (<= 1 ~mode2)) (.cse7 (<= ~mode2 1)) (.cse5 (not (= ~p1_old ~nomsg))) (.cse0 (<= 0 ~send1)) (.cse1 (not (= ~p1_new ~nomsg))) (.cse2 (<= ~send1 127)) (.cse3 (= 0 (+ ~nomsg 1))) (.cse4 (<= ~r1 (* 256 (div ~r1 256))))) (or (and .cse0 (= ~mode3 (* 256 (div ~mode3 256))) .cse1 (= ~mode2 (* 256 (div ~mode2 256))) .cse2 .cse3 .cse4) (and .cse5 .cse0 (= ~mode1 (* 256 (div ~mode1 256))) .cse6 .cse7 .cse2 .cse3) (and .cse5 .cse0 .cse6 .cse7 .cse1 .cse2 .cse3) (and .cse5 .cse0 .cse1 .cse2 (exists ((v_~r1_7 Int)) (let ((.cse8 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse8 1)) (<= .cse8 0)))) .cse3) (and .cse5 .cse0 .cse1 .cse2 .cse3 .cse4))) [2018-09-28 10:08:44,839 INFO L422 ceAbstractionStarter]: At program point L300(lines 294 301) the Hoare annotation is: (let ((.cse7 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 0 ~send1)) (.cse2 (<= 1 ~mode2)) (.cse3 (<= ~mode2 1)) (.cse4 (not (= ~p1_new ~nomsg))) (.cse5 (<= ~send1 127)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 (= ~mode3 (* 256 (div ~mode3 256))) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (exists ((v_~r1_7 Int)) (let ((.cse8 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse8 1)) (<= .cse8 0)))) .cse6))) [2018-09-28 10:08:44,839 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 386) no Hoare annotation was computed. [2018-09-28 10:08:44,840 INFO L422 ceAbstractionStarter]: At program point L325(lines 325 335) the Hoare annotation is: (let ((.cse0 (<= 0 ~send1)) (.cse1 (<= 1 ~mode2)) (.cse2 (<= ~mode2 1)) (.cse3 (not (= ~p1_new ~nomsg))) (.cse4 (<= ~send1 127)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and (not (= ~p1_old ~nomsg)) .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((v_~r1_7 Int)) (let ((.cse5 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse5 1)) (<= .cse5 0)))) .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 (<= ~r1 (* 256 (div ~r1 256)))))) [2018-09-28 10:08:44,840 INFO L422 ceAbstractionStarter]: At program point L354(lines 354 361) 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 .cse2 .cse3 .cse4 (exists ((v_~r1_7 Int)) (let ((.cse6 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse6 1)) (<= .cse6 0)))) .cse5))) [2018-09-28 10:08:44,840 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 74 387) no Hoare annotation was computed. [2018-09-28 10:08:44,840 INFO L422 ceAbstractionStarter]: At program point L381(lines 381 385) the Hoare annotation is: false [2018-09-28 10:08:44,840 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 74 387) no Hoare annotation was computed. [2018-09-28 10:08:44,840 INFO L422 ceAbstractionStarter]: At program point L280(lines 271 281) the Hoare annotation is: (let ((.cse6 (<= 1 ~mode2)) (.cse7 (<= ~mode2 1)) (.cse5 (not (= ~p1_old ~nomsg))) (.cse0 (<= 0 ~send1)) (.cse1 (not (= ~p1_new ~nomsg))) (.cse2 (<= ~send1 127)) (.cse3 (= 0 (+ ~nomsg 1))) (.cse4 (<= ~r1 (* 256 (div ~r1 256))))) (or (and .cse0 (= ~mode3 (* 256 (div ~mode3 256))) .cse1 (= ~mode2 (* 256 (div ~mode2 256))) .cse2 .cse3 .cse4) (and .cse5 .cse0 (= ~mode1 (* 256 (div ~mode1 256))) .cse6 .cse7 .cse2 .cse3) (and .cse5 .cse0 .cse6 .cse7 .cse1 .cse2 .cse3) (and .cse5 .cse0 .cse1 .cse2 (exists ((v_~r1_7 Int)) (let ((.cse8 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse8 1)) (<= .cse8 0)))) .cse3) (and .cse5 .cse0 .cse1 .cse2 .cse3 .cse4))) [2018-09-28 10:08:44,841 INFO L422 ceAbstractionStarter]: At program point L375(lines 375 382) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (<= 0 ~send1) (= ULTIMATE.start_assert_~arg 1) (<= 1 ~mode2) (<= ~mode2 1) (<= ~send1 127) (<= 1 ULTIMATE.start_check_~tmp~103) (= 0 (+ ~nomsg 1))) [2018-09-28 10:08:44,841 INFO L422 ceAbstractionStarter]: At program point L340(lines 334 341) the Hoare annotation is: (let ((.cse0 (<= 0 ~send1)) (.cse1 (<= 1 ~mode2)) (.cse2 (<= ~mode2 1)) (.cse3 (not (= ~p1_new ~nomsg))) (.cse4 (<= ~send1 127)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and (not (= ~p1_old ~nomsg)) .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((v_~r1_7 Int)) (let ((.cse5 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse5 1)) (<= .cse5 0)))) .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 (<= ~r1 (* 256 (div ~r1 256)))))) [2018-09-28 10:08:44,861 INFO L422 ceAbstractionStarter]: At program point L305(lines 305 315) the Hoare annotation is: (let ((.cse7 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 0 ~send1)) (.cse2 (<= 1 ~mode2)) (.cse3 (<= ~mode2 1)) (.cse4 (not (= ~p1_new ~nomsg))) (.cse5 (<= ~send1 127)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 (= ~mode3 (* 256 (div ~mode3 256))) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (exists ((v_~r1_7 Int)) (let ((.cse8 (mod v_~r1_7 256))) (and (= ~r1 (+ .cse8 1)) (<= .cse8 0)))) .cse6))) [2018-09-28 10:08:44,862 INFO L422 ceAbstractionStarter]: At program point L365(lines 360 366) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (<= 0 ~send1) (<= 1 ~mode2) (<= ~mode2 1) (<= ~send1 127) (<= 1 ULTIMATE.start_check_~tmp~103) (= 0 (+ ~nomsg 1))) [2018-09-28 10:08:44,863 INFO L422 ceAbstractionStarter]: At program point L260(lines 260 272) 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))) [2018-09-28 10:08:44,880 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,881 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,883 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,884 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,887 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,887 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,889 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,890 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,893 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,893 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,894 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,894 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,896 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,896 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,898 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,898 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,900 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,900 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,902 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,902 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,904 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,904 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,906 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,906 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,909 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,909 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,911 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,911 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,913 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,913 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,915 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,915 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,918 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.09 10:08:44 BoogieIcfgContainer [2018-09-28 10:08:44,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-28 10:08:44,919 INFO L168 Benchmark]: Toolchain (without parser) took 10208.39 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 29.4 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -44.1 MB). Peak memory consumption was 489.5 MB. Max. memory is 7.1 GB. [2018-09-28 10:08:44,921 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-28 10:08:44,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.99 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-28 10:08:44,922 INFO L168 Benchmark]: Boogie Preprocessor took 54.85 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-28 10:08:44,922 INFO L168 Benchmark]: RCFGBuilder took 619.42 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-28 10:08:44,923 INFO L168 Benchmark]: TraceAbstraction took 9482.77 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 29.4 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -75.8 MB). Peak memory consumption was 457.8 MB. Max. memory is 7.1 GB. [2018-09-28 10:08:44,927 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 0.22 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 45.99 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 54.85 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 619.42 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 9482.77 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 29.4 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -75.8 MB). Peak memory consumption was 457.8 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_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 386]: 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: 360]: Loop Invariant Derived loop invariant: (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 1 <= check_~tmp~103) && 0 == ~nomsg + 1 - InvariantResult [Line: 354]: Loop Invariant [2018-09-28 10:08:44,943 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,944 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,945 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,945 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,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) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && 0 == ~nomsg + 1) - InvariantResult [Line: 375]: Loop Invariant Derived loop invariant: ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && assert_~arg == 1) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 1 <= check_~tmp~103) && 0 == ~nomsg + 1 - InvariantResult [Line: 285]: Loop Invariant [2018-09-28 10:08:44,947 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,947 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,949 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,949 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] Derived loop invariant: (((((((((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) && ~mode1 == 256 * (~mode1 / 256)) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1)) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1)) || (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && 0 == ~nomsg + 1)) || (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 253]: 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: 314]: Loop Invariant [2018-09-28 10:08:44,951 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,951 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,951 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,952 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] Derived loop invariant: (((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && 0 == ~nomsg + 1) || ((((((0 <= ~send1 && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 334]: Loop Invariant [2018-09-28 10:08:44,953 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,953 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,953 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,954 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] Derived loop invariant: (((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && 0 == ~nomsg + 1) || ((((((0 <= ~send1 && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 294]: Loop Invariant [2018-09-28 10:08:44,955 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,955 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,956 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,956 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] Derived loop invariant: ((((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((((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) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && 0 == ~nomsg + 1) - InvariantResult [Line: 305]: Loop Invariant [2018-09-28 10:08:44,957 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,957 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,958 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,958 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] Derived loop invariant: ((((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((((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) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && 0 == ~nomsg + 1) - InvariantResult [Line: 271]: Loop Invariant [2018-09-28 10:08:44,960 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,960 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,961 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,961 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] Derived loop invariant: (((((((((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) && ~mode1 == 256 * (~mode1 / 256)) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1)) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1)) || (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && 0 == ~nomsg + 1)) || (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 325]: Loop Invariant [2018-09-28 10:08:44,962 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,962 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,963 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-28 10:08:44,963 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] Derived loop invariant: (((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && (exists v_~r1_7 : int :: ~r1 == v_~r1_7 % 256 + 1 && v_~r1_7 % 256 <= 0)) && 0 == ~nomsg + 1) || ((((((0 <= ~send1 && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 260]: 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, 17 locations, 1 error locations. SAFE Result, 9.3s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 4.1s AutomataDifference, 0.0s DeadEndRemovalTime, 2.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 204 SDtfs, 182 SDslu, 170 SDs, 0 SdLazy, 162 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=325occurred 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, 74 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 167 NumberOfFragments, 984 HoareAnnotationTreeSize, 13 FomulaSimplifications, 6601 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 13 FomulaSimplificationsInter, 70 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 201 ConstructedInterpolants, 8 QuantifiedInterpolants, 17409 SizeOfPredicates, 1 NumberOfNonLiveVariables, 246 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 108/120 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.4.1.ufo.UNBOUNDED.pals.c_10.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-28_10-08-44-970.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c_10.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-28_10-08-44-970.csv Received shutdown request...