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.ufo.UNBOUNDED.pals.c_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-bd42740 [2018-09-23 21:30:34,421 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-23 21:30:34,423 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-23 21:30:34,436 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-23 21:30:34,436 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-23 21:30:34,438 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-23 21:30:34,439 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-23 21:30:34,441 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-23 21:30:34,443 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-23 21:30:34,444 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-23 21:30:34,446 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-23 21:30:34,491 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 [2018-09-23 21:30:34,523 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-23 21:30:34,523 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-23 21:30:34,524 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-23 21:30:34,524 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-23 21:30:34,525 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-23 21:30:34,525 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-23 21:30:34,525 INFO L133 SettingsManager]: * Use SBE=true [2018-09-23 21:30:34,526 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-23 21:30:34,526 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-23 21:30:34,526 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-23 21:30:34,526 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-23 21:30:34,527 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-23 21:30:34,527 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-23 21:30:34,528 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-23 21:30:34,528 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-23 21:30:34,528 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-23 21:30:34,528 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-23 21:30:34,528 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-23 21:30:34,529 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-23 21:30:34,529 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-23 21:30:34,529 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-23 21:30:34,529 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-23 21:30:34,531 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-23 21:30:34,531 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-23 21:30:34,531 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-23 21:30:34,531 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-23 21:30:34,531 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-23 21:30:34,532 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-23 21:30:34,532 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-23 21:30:34,532 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-23 21:30:34,603 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-23 21:30:34,616 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-23 21:30:34,624 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-23 21:30:34,625 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-23 21:30:34,626 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-23 21:30:34,627 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl [2018-09-23 21:30:34,627 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl' [2018-09-23 21:30:34,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-23 21:30:34,731 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-23 21:30:34,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-23 21:30:34,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-23 21:30:34,732 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-23 21:30:34,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:30:34" (1/1) ... [2018-09-23 21:30:34,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:30:34" (1/1) ... [2018-09-23 21:30:34,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-23 21:30:34,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-23 21:30:34,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-23 21:30:34,788 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-23 21:30:34,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:30:34" (1/1) ... [2018-09-23 21:30:34,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:30:34" (1/1) ... [2018-09-23 21:30:34,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:30:34" (1/1) ... [2018-09-23 21:30:34,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:30:34" (1/1) ... [2018-09-23 21:30:34,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:30:34" (1/1) ... [2018-09-23 21:30:34,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:30:34" (1/1) ... [2018-09-23 21:30:34,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:30:34" (1/1) ... [2018-09-23 21:30:34,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-23 21:30:34,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-23 21:30:34,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-23 21:30:34,843 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-23 21:30:34,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:30:34" (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 [2018-09-23 21:30:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-23 21:30:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-23 21:30:35,514 INFO L354 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-23 21:30:35,514 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 09:30:35 BoogieIcfgContainer [2018-09-23 21:30:35,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-23 21:30:35,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-23 21:30:35,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-23 21:30:35,519 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-23 21:30:35,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:30:34" (1/2) ... [2018-09-23 21:30:35,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668757e2 and model type pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 09:30:35, skipping insertion in model container [2018-09-23 21:30:35,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 09:30:35" (2/2) ... [2018-09-23 21:30:35,522 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl [2018-09-23 21:30:35,531 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-23 21:30:35,538 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-23 21:30:35,584 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-23 21:30:35,585 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-23 21:30:35,585 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-23 21:30:35,585 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-23 21:30:35,586 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-23 21:30:35,586 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-23 21:30:35,586 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-23 21:30:35,586 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-23 21:30:35,586 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-23 21:30:35,602 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-09-23 21:30:35,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-23 21:30:35,608 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:30:35,609 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:30:35,611 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:30:35,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:30:35,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1823027031, now seen corresponding path program 1 times [2018-09-23 21:30:35,619 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:30:35,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:30:35,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:35,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:30:35,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:30:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:30:35,851 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:30:35,852 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:30:35,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:30:35,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:30:35,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:30:35,872 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-09-23 21:30:35,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:30:35,940 INFO L93 Difference]: Finished difference Result 45 states and 62 transitions. [2018-09-23 21:30:35,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:30:35,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-23 21:30:35,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:30:35,952 INFO L225 Difference]: With dead ends: 45 [2018-09-23 21:30:35,952 INFO L226 Difference]: Without dead ends: 29 [2018-09-23 21:30:35,957 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 [2018-09-23 21:30:35,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-09-23 21:30:35,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-09-23 21:30:35,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-09-23 21:30:35,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2018-09-23 21:30:36,001 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2018-09-23 21:30:36,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:30:36,001 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2018-09-23 21:30:36,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:30:36,002 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2018-09-23 21:30:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-23 21:30:36,002 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:30:36,003 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:30:36,003 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:30:36,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:30:36,003 INFO L82 PathProgramCache]: Analyzing trace with hash 2081192469, now seen corresponding path program 1 times [2018-09-23 21:30:36,004 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:30:36,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:30:36,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:36,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:30:36,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:30:36,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:30:36,157 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:30:36,157 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:30:36,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:30:36,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:30:36,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:30:36,160 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 3 states. [2018-09-23 21:30:36,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:30:36,219 INFO L93 Difference]: Finished difference Result 79 states and 109 transitions. [2018-09-23 21:30:36,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:30:36,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-23 21:30:36,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:30:36,222 INFO L225 Difference]: With dead ends: 79 [2018-09-23 21:30:36,222 INFO L226 Difference]: Without dead ends: 53 [2018-09-23 21:30:36,225 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 [2018-09-23 21:30:36,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-09-23 21:30:36,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2018-09-23 21:30:36,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-23 21:30:36,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2018-09-23 21:30:36,248 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 14 [2018-09-23 21:30:36,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:30:36,250 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2018-09-23 21:30:36,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:30:36,250 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2018-09-23 21:30:36,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-23 21:30:36,251 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:30:36,251 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:30:36,251 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:30:36,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:30:36,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1271845843, now seen corresponding path program 1 times [2018-09-23 21:30:36,253 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:30:36,253 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:30:36,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:36,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:30:36,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:30:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:30:36,436 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:30:36,437 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-23 21:30:36,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-23 21:30:36,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-23 21:30:36,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-23 21:30:36,438 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand 4 states. [2018-09-23 21:30:36,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:30:36,602 INFO L93 Difference]: Finished difference Result 109 states and 147 transitions. [2018-09-23 21:30:36,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-23 21:30:36,603 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-09-23 21:30:36,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:30:36,606 INFO L225 Difference]: With dead ends: 109 [2018-09-23 21:30:36,607 INFO L226 Difference]: Without dead ends: 107 [2018-09-23 21:30:36,607 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-23 21:30:36,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-09-23 21:30:36,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 59. [2018-09-23 21:30:36,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-09-23 21:30:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 78 transitions. [2018-09-23 21:30:36,631 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 78 transitions. Word has length 14 [2018-09-23 21:30:36,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:30:36,631 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 78 transitions. [2018-09-23 21:30:36,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-23 21:30:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 78 transitions. [2018-09-23 21:30:36,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-23 21:30:36,633 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:30:36,633 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:30:36,633 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:30:36,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:30:36,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1271905425, now seen corresponding path program 1 times [2018-09-23 21:30:36,634 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:30:36,634 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:30:36,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:36,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:30:36,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:30:36,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:30:36,745 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:30:36,745 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:30:36,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:30:36,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:30:36,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:30:36,746 INFO L87 Difference]: Start difference. First operand 59 states and 78 transitions. Second operand 3 states. [2018-09-23 21:30:36,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:30:36,841 INFO L93 Difference]: Finished difference Result 143 states and 190 transitions. [2018-09-23 21:30:36,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:30:36,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-23 21:30:36,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:30:36,846 INFO L225 Difference]: With dead ends: 143 [2018-09-23 21:30:36,846 INFO L226 Difference]: Without dead ends: 85 [2018-09-23 21:30:36,847 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 [2018-09-23 21:30:36,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-23 21:30:36,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-09-23 21:30:36,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-09-23 21:30:36,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 111 transitions. [2018-09-23 21:30:36,880 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 111 transitions. Word has length 14 [2018-09-23 21:30:36,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:30:36,881 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 111 transitions. [2018-09-23 21:30:36,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:30:36,881 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 111 transitions. [2018-09-23 21:30:36,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-23 21:30:36,885 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:30:36,885 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:30:36,885 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:30:36,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:30:36,886 INFO L82 PathProgramCache]: Analyzing trace with hash -602166477, now seen corresponding path program 1 times [2018-09-23 21:30:36,886 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:30:36,886 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:30:36,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:36,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:30:36,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:30:37,011 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:30:37,011 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:30:37,011 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-23 21:30:37,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:30:37,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:30:37,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:30:37,013 INFO L87 Difference]: Start difference. First operand 85 states and 111 transitions. Second operand 3 states. [2018-09-23 21:30:37,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:30:37,079 INFO L93 Difference]: Finished difference Result 249 states and 327 transitions. [2018-09-23 21:30:37,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:30:37,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-09-23 21:30:37,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:30:37,082 INFO L225 Difference]: With dead ends: 249 [2018-09-23 21:30:37,082 INFO L226 Difference]: Without dead ends: 167 [2018-09-23 21:30:37,083 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 [2018-09-23 21:30:37,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-09-23 21:30:37,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2018-09-23 21:30:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-09-23 21:30:37,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 212 transitions. [2018-09-23 21:30:37,120 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 212 transitions. Word has length 26 [2018-09-23 21:30:37,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:30:37,120 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 212 transitions. [2018-09-23 21:30:37,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:30:37,121 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 212 transitions. [2018-09-23 21:30:37,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-23 21:30:37,122 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:30:37,122 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:30:37,123 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:30:37,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:30:37,123 INFO L82 PathProgramCache]: Analyzing trace with hash -209139467, now seen corresponding path program 1 times [2018-09-23 21:30:37,123 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:30:37,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:30:37,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:37,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:30:37,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:30:37,217 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:30:37,218 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:30:37,218 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-23 21:30:37,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:30:37,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:30:37,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:30:37,219 INFO L87 Difference]: Start difference. First operand 165 states and 212 transitions. Second operand 3 states. [2018-09-23 21:30:37,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:30:37,325 INFO L93 Difference]: Finished difference Result 489 states and 630 transitions. [2018-09-23 21:30:37,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:30:37,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-09-23 21:30:37,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:30:37,330 INFO L225 Difference]: With dead ends: 489 [2018-09-23 21:30:37,331 INFO L226 Difference]: Without dead ends: 327 [2018-09-23 21:30:37,332 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 [2018-09-23 21:30:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2018-09-23 21:30:37,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 325. [2018-09-23 21:30:37,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2018-09-23 21:30:37,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 408 transitions. [2018-09-23 21:30:37,411 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 408 transitions. Word has length 26 [2018-09-23 21:30:37,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:30:37,412 INFO L480 AbstractCegarLoop]: Abstraction has 325 states and 408 transitions. [2018-09-23 21:30:37,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:30:37,412 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 408 transitions. [2018-09-23 21:30:37,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-23 21:30:37,414 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:30:37,415 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] [2018-09-23 21:30:37,415 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:30:37,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:30:37,415 INFO L82 PathProgramCache]: Analyzing trace with hash -266397769, now seen corresponding path program 1 times [2018-09-23 21:30:37,416 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:30:37,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:30:37,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:37,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:30:37,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:30:37,536 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:30:37,537 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:30:37,537 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 [2018-09-23 21:30:37,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:30:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:30:37,637 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:30:37,993 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-23 21:30:38,027 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:30:38,027 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-09-23 21:30:38,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-23 21:30:38,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-23 21:30:38,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-23 21:30:38,029 INFO L87 Difference]: Start difference. First operand 325 states and 408 transitions. Second operand 7 states. [2018-09-23 21:30:38,240 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-23 21:30:39,077 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-23 21:30:39,684 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-23 21:30:40,071 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-23 21:30:40,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:30:40,641 INFO L93 Difference]: Finished difference Result 737 states and 923 transitions. [2018-09-23 21:30:40,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-23 21:30:40,641 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-09-23 21:30:40,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:30:40,643 INFO L225 Difference]: With dead ends: 737 [2018-09-23 21:30:40,643 INFO L226 Difference]: Without dead ends: 265 [2018-09-23 21:30:40,645 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-09-23 21:30:40,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-09-23 21:30:40,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 247. [2018-09-23 21:30:40,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-09-23 21:30:40,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 286 transitions. [2018-09-23 21:30:40,694 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 286 transitions. Word has length 26 [2018-09-23 21:30:40,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:30:40,694 INFO L480 AbstractCegarLoop]: Abstraction has 247 states and 286 transitions. [2018-09-23 21:30:40,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-23 21:30:40,695 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 286 transitions. [2018-09-23 21:30:40,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-23 21:30:40,697 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:30:40,697 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] [2018-09-23 21:30:40,698 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:30:40,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:30:40,698 INFO L82 PathProgramCache]: Analyzing trace with hash 47747323, now seen corresponding path program 2 times [2018-09-23 21:30:40,698 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:30:40,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:30:40,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:40,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:30:40,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:30:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:30:40,775 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-09-23 21:30:40,775 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:30:40,775 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:30:40,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:30:40,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:30:40,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:30:40,777 INFO L87 Difference]: Start difference. First operand 247 states and 286 transitions. Second operand 3 states. [2018-09-23 21:30:40,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:30:40,788 INFO L93 Difference]: Finished difference Result 247 states and 286 transitions. [2018-09-23 21:30:40,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:30:40,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2018-09-23 21:30:40,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:30:40,789 INFO L225 Difference]: With dead ends: 247 [2018-09-23 21:30:40,789 INFO L226 Difference]: Without dead ends: 0 [2018-09-23 21:30:40,790 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 [2018-09-23 21:30:40,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-23 21:30:40,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-23 21:30:40,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-23 21:30:40,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-23 21:30:40,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-09-23 21:30:40,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:30:40,791 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-23 21:30:40,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:30:40,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-23 21:30:40,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-23 21:30:40,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-23 21:30:41,179 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-23 21:30:41,651 WARN L178 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-09-23 21:30:42,098 WARN L178 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2018-09-23 21:30:42,303 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-09-23 21:30:42,433 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-09-23 21:30:42,915 WARN L178 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-09-23 21:30:43,072 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-09-23 21:30:43,292 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2018-09-23 21:30:43,466 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 74 387) no Hoare annotation was computed. [2018-09-23 21:30:43,466 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)))))) [2018-09-23 21:30:43,466 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))) [2018-09-23 21:30:43,467 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))) [2018-09-23 21:30:43,467 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))) [2018-09-23 21:30:43,467 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)))))) [2018-09-23 21:30:43,467 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))) [2018-09-23 21:30:43,467 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 74 387) no Hoare annotation was computed. [2018-09-23 21:30:43,467 INFO L422 ceAbstractionStarter]: At program point L381(lines 381 385) the Hoare annotation is: false [2018-09-23 21:30:43,468 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 74 387) no Hoare annotation was computed. [2018-09-23 21:30:43,468 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))) [2018-09-23 21:30:43,468 INFO L422 ceAbstractionStarter]: At program point L375(lines 375 382) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (<= 0 ~send1) (<= 1 ULTIMATE.start_check_~tmp~102) (<= 1 ~mode2) (<= ~mode2 1) (<= ~send1 127) (= 0 (+ ~nomsg 1)) (= 1 ULTIMATE.start_assert_~arg)) [2018-09-23 21:30:43,468 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 386) no Hoare annotation was computed. [2018-09-23 21:30:43,468 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)))))) [2018-09-23 21:30:43,469 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))) [2018-09-23 21:30:43,469 INFO L422 ceAbstractionStarter]: At program point L365(lines 360 366) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (<= 0 ~send1) (<= 1 ULTIMATE.start_check_~tmp~102) (<= 1 ~mode2) (<= ~mode2 1) (<= ~send1 127) (= 0 (+ ~nomsg 1))) [2018-09-23 21:30:43,469 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))) [2018-09-23 21:30:43,480 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,481 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,483 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,483 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,486 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,487 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,489 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,489 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,492 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,492 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,494 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,494 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,496 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,496 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,497 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,498 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,499 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,500 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,501 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,502 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,503 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,503 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,505 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,505 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,508 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,508 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,511 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,511 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,512 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,513 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,514 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,514 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,518 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 09:30:43 BoogieIcfgContainer [2018-09-23 21:30:43,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-23 21:30:43,519 INFO L168 Benchmark]: Toolchain (without parser) took 8790.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 984.7 MB in the end (delta: 470.5 MB). Peak memory consumption was 470.5 MB. Max. memory is 7.1 GB. [2018-09-23 21:30:43,520 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-23 21:30:43,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.96 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. [2018-09-23 21:30:43,521 INFO L168 Benchmark]: Boogie Preprocessor took 51.94 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. [2018-09-23 21:30:43,522 INFO L168 Benchmark]: RCFGBuilder took 672.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-23 21:30:43,523 INFO L168 Benchmark]: TraceAbstraction took 8002.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 984.7 MB in the end (delta: 428.2 MB). Peak memory consumption was 428.2 MB. Max. memory is 7.1 GB. [2018-09-23 21:30:43,526 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 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.96 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 51.94 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 672.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8002.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 984.7 MB in the end (delta: 428.2 MB). Peak memory consumption was 428.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_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 <= check_~tmp~102) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1 - InvariantResult [Line: 354]: Loop Invariant [2018-09-23 21:30:43,537 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,538 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,539 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,539 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) && 1 <= check_~tmp~102) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1) && 1 == assert_~arg - InvariantResult [Line: 285]: Loop Invariant [2018-09-23 21:30:43,542 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,542 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,544 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,544 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 [2018-09-23 21:30:43,546 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,546 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,547 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,548 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 [2018-09-23 21:30:43,549 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,549 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,550 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,550 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 [2018-09-23 21:30:43,552 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,552 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,553 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,553 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 [2018-09-23 21:30:43,555 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,555 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,556 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,556 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 [2018-09-23 21:30:43,558 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,558 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,559 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,560 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 [2018-09-23 21:30:43,561 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,561 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,561 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_7,QUANTIFIED] [2018-09-23 21:30:43,562 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, 7.8s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 2.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 204 SDtfs, 182 SDslu, 170 SDs, 0 SdLazy, 162 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.9s 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, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s 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.ufo.UNBOUNDED.pals.c_10.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-23_21-30-43-568.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-23_21-30-43-568.csv Received shutdown request...