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.5.ufo.BOUNDED-10.pals.c_21.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 21:25:58,895 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 21:25:58,899 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 21:25:58,911 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 21:25:58,911 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 21:25:58,912 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 21:25:58,914 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 21:25:58,915 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 21:25:58,917 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 21:25:58,918 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 21:25:58,919 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-26 21:25:58,945 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 [2018-09-26 21:25:58,962 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 21:25:58,962 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 21:25:58,963 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 21:25:58,964 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 21:25:58,964 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 21:25:58,964 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 21:25:58,965 INFO L133 SettingsManager]: * Use SBE=true [2018-09-26 21:25:58,965 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 21:25:58,965 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 21:25:58,965 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 21:25:58,965 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 21:25:58,966 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 21:25:58,966 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 21:25:58,966 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 21:25:58,966 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 21:25:58,966 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 21:25:58,967 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 21:25:58,967 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 21:25:58,967 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 21:25:58,967 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-26 21:25:58,967 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 21:25:58,968 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-26 21:25:58,968 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:25:58,968 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 21:25:58,968 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 21:25:58,969 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 21:25:58,969 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-26 21:25:58,969 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 21:25:58,969 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 21:25:58,969 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 21:25:59,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 21:25:59,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 21:25:59,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 21:25:59,056 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 21:25:59,057 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 21:25:59,058 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl [2018-09-26 21:25:59,058 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl' [2018-09-26 21:25:59,168 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 21:25:59,172 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 21:25:59,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 21:25:59,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 21:25:59,173 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 21:25:59,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:25:59" (1/1) ... [2018-09-26 21:25:59,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:25:59" (1/1) ... [2018-09-26 21:25:59,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 21:25:59,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 21:25:59,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 21:25:59,223 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 21:25:59,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:25:59" (1/1) ... [2018-09-26 21:25:59,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:25:59" (1/1) ... [2018-09-26 21:25:59,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:25:59" (1/1) ... [2018-09-26 21:25:59,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:25:59" (1/1) ... [2018-09-26 21:25:59,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:25:59" (1/1) ... [2018-09-26 21:25:59,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:25:59" (1/1) ... [2018-09-26 21:25:59,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:25:59" (1/1) ... [2018-09-26 21:25:59,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 21:25:59,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 21:25:59,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 21:25:59,260 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 21:25:59,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:25:59" (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 [2018-09-26 21:25:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 21:25:59,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 21:26:00,049 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 21:26:00,050 INFO L202 PluginConnector]: Adding new model pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:26:00 BoogieIcfgContainer [2018-09-26 21:26:00,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 21:26:00,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 21:26:00,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 21:26:00,054 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 21:26:00,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:25:59" (1/2) ... [2018-09-26 21:26:00,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449b731e and model type pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:26:00, skipping insertion in model container [2018-09-26 21:26:00,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:26:00" (2/2) ... [2018-09-26 21:26:00,058 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl [2018-09-26 21:26:00,068 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-26 21:26:00,083 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 21:26:00,145 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 21:26:00,146 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 21:26:00,146 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 21:26:00,146 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-26 21:26:00,147 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 21:26:00,147 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 21:26:00,147 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 21:26:00,147 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 21:26:00,147 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 21:26:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-26 21:26:00,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-26 21:26:00,187 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:00,189 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:00,190 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:00,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:00,197 INFO L82 PathProgramCache]: Analyzing trace with hash -61215035, now seen corresponding path program 1 times [2018-09-26 21:26:00,200 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:00,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:00,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:00,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:00,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:00,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:26:00,474 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:00,474 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:26:00,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:26:00,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:26:00,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:00,493 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-09-26 21:26:00,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:00,566 INFO L93 Difference]: Finished difference Result 54 states and 77 transitions. [2018-09-26 21:26:00,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:26:00,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-09-26 21:26:00,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:00,581 INFO L225 Difference]: With dead ends: 54 [2018-09-26 21:26:00,581 INFO L226 Difference]: Without dead ends: 35 [2018-09-26 21:26:00,585 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 [2018-09-26 21:26:00,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-09-26 21:26:00,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-09-26 21:26:00,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-09-26 21:26:00,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 47 transitions. [2018-09-26 21:26:00,631 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 47 transitions. Word has length 17 [2018-09-26 21:26:00,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:00,632 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 47 transitions. [2018-09-26 21:26:00,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:26:00,632 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 47 transitions. [2018-09-26 21:26:00,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-26 21:26:00,633 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:00,633 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:00,634 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:00,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:00,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1341078713, now seen corresponding path program 1 times [2018-09-26 21:26:00,634 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:00,635 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:00,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:00,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:00,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:00,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:26:00,753 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:00,754 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:26:00,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:26:00,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:26:00,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:00,757 INFO L87 Difference]: Start difference. First operand 33 states and 47 transitions. Second operand 3 states. [2018-09-26 21:26:00,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:00,816 INFO L93 Difference]: Finished difference Result 97 states and 139 transitions. [2018-09-26 21:26:00,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:26:00,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-09-26 21:26:00,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:00,818 INFO L225 Difference]: With dead ends: 97 [2018-09-26 21:26:00,818 INFO L226 Difference]: Without dead ends: 65 [2018-09-26 21:26:00,820 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 [2018-09-26 21:26:00,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-09-26 21:26:00,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2018-09-26 21:26:00,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-26 21:26:00,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 90 transitions. [2018-09-26 21:26:00,838 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 90 transitions. Word has length 17 [2018-09-26 21:26:00,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:00,839 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 90 transitions. [2018-09-26 21:26:00,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:26:00,839 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 90 transitions. [2018-09-26 21:26:00,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-26 21:26:00,840 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:00,840 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:00,840 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:00,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:00,841 INFO L82 PathProgramCache]: Analyzing trace with hash -754272699, now seen corresponding path program 1 times [2018-09-26 21:26:00,841 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:00,841 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:00,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:00,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:00,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:00,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:26:00,962 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:00,963 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:26:00,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:26:00,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:26:00,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:00,964 INFO L87 Difference]: Start difference. First operand 63 states and 90 transitions. Second operand 3 states. [2018-09-26 21:26:01,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:01,032 INFO L93 Difference]: Finished difference Result 187 states and 268 transitions. [2018-09-26 21:26:01,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:26:01,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-09-26 21:26:01,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:01,038 INFO L225 Difference]: With dead ends: 187 [2018-09-26 21:26:01,038 INFO L226 Difference]: Without dead ends: 125 [2018-09-26 21:26:01,039 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 [2018-09-26 21:26:01,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-09-26 21:26:01,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2018-09-26 21:26:01,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-09-26 21:26:01,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 174 transitions. [2018-09-26 21:26:01,069 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 174 transitions. Word has length 17 [2018-09-26 21:26:01,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:01,070 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 174 transitions. [2018-09-26 21:26:01,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:26:01,070 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 174 transitions. [2018-09-26 21:26:01,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-26 21:26:01,071 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:01,071 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:01,071 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:01,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:01,072 INFO L82 PathProgramCache]: Analyzing trace with hash -53208121, now seen corresponding path program 1 times [2018-09-26 21:26:01,072 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:01,072 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:01,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:01,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:01,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:01,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:26:01,193 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:01,193 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:26:01,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:26:01,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:26:01,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:01,195 INFO L87 Difference]: Start difference. First operand 123 states and 174 transitions. Second operand 3 states. [2018-09-26 21:26:01,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:01,271 INFO L93 Difference]: Finished difference Result 367 states and 520 transitions. [2018-09-26 21:26:01,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:26:01,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-09-26 21:26:01,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:01,274 INFO L225 Difference]: With dead ends: 367 [2018-09-26 21:26:01,275 INFO L226 Difference]: Without dead ends: 245 [2018-09-26 21:26:01,276 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 [2018-09-26 21:26:01,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-09-26 21:26:01,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 243. [2018-09-26 21:26:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-09-26 21:26:01,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 338 transitions. [2018-09-26 21:26:01,334 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 338 transitions. Word has length 17 [2018-09-26 21:26:01,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:01,337 INFO L480 AbstractCegarLoop]: Abstraction has 243 states and 338 transitions. [2018-09-26 21:26:01,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:26:01,337 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 338 transitions. [2018-09-26 21:26:01,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-26 21:26:01,338 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:01,338 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:01,338 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:01,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:01,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1721799241, now seen corresponding path program 1 times [2018-09-26 21:26:01,339 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:01,339 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:01,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:01,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:01,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:01,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:01,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:26:01,504 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:01,505 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-26 21:26:01,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 21:26:01,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 21:26:01,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 21:26:01,506 INFO L87 Difference]: Start difference. First operand 243 states and 338 transitions. Second operand 4 states. [2018-09-26 21:26:01,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:01,750 INFO L93 Difference]: Finished difference Result 517 states and 707 transitions. [2018-09-26 21:26:01,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 21:26:01,752 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-09-26 21:26:01,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:01,760 INFO L225 Difference]: With dead ends: 517 [2018-09-26 21:26:01,760 INFO L226 Difference]: Without dead ends: 515 [2018-09-26 21:26:01,761 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 [2018-09-26 21:26:01,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2018-09-26 21:26:01,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 275. [2018-09-26 21:26:01,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2018-09-26 21:26:01,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 370 transitions. [2018-09-26 21:26:01,852 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 370 transitions. Word has length 17 [2018-09-26 21:26:01,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:01,852 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 370 transitions. [2018-09-26 21:26:01,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 21:26:01,854 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 370 transitions. [2018-09-26 21:26:01,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-26 21:26:01,855 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:01,855 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:01,857 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:01,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:01,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1721858823, now seen corresponding path program 1 times [2018-09-26 21:26:01,858 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:01,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:01,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:01,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:01,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:26:02,056 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:02,056 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:26:02,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 21:26:02,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 21:26:02,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-26 21:26:02,058 INFO L87 Difference]: Start difference. First operand 275 states and 370 transitions. Second operand 4 states. [2018-09-26 21:26:02,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:02,332 INFO L93 Difference]: Finished difference Result 799 states and 1085 transitions. [2018-09-26 21:26:02,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 21:26:02,333 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-09-26 21:26:02,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:02,336 INFO L225 Difference]: With dead ends: 799 [2018-09-26 21:26:02,336 INFO L226 Difference]: Without dead ends: 525 [2018-09-26 21:26:02,338 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-26 21:26:02,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2018-09-26 21:26:02,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 403. [2018-09-26 21:26:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2018-09-26 21:26:02,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 526 transitions. [2018-09-26 21:26:02,414 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 526 transitions. Word has length 17 [2018-09-26 21:26:02,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:02,414 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 526 transitions. [2018-09-26 21:26:02,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 21:26:02,415 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 526 transitions. [2018-09-26 21:26:02,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-26 21:26:02,417 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:02,418 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:02,418 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:02,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:02,419 INFO L82 PathProgramCache]: Analyzing trace with hash 2097839419, now seen corresponding path program 1 times [2018-09-26 21:26:02,419 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:02,419 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:02,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:02,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:02,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:02,521 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:26:02,521 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:02,521 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:26:02,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:26:02,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:26:02,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:02,523 INFO L87 Difference]: Start difference. First operand 403 states and 526 transitions. Second operand 3 states. [2018-09-26 21:26:02,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:02,737 INFO L93 Difference]: Finished difference Result 1207 states and 1576 transitions. [2018-09-26 21:26:02,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:26:02,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-09-26 21:26:02,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:02,743 INFO L225 Difference]: With dead ends: 1207 [2018-09-26 21:26:02,743 INFO L226 Difference]: Without dead ends: 805 [2018-09-26 21:26:02,745 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 [2018-09-26 21:26:02,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2018-09-26 21:26:02,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 803. [2018-09-26 21:26:02,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-09-26 21:26:02,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1026 transitions. [2018-09-26 21:26:02,909 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1026 transitions. Word has length 32 [2018-09-26 21:26:02,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:02,910 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 1026 transitions. [2018-09-26 21:26:02,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:26:02,911 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1026 transitions. [2018-09-26 21:26:02,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-26 21:26:02,919 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:02,920 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:02,920 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:02,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:02,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1417781049, now seen corresponding path program 1 times [2018-09-26 21:26:02,921 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:02,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:02,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:02,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:02,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:03,271 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 3 [2018-09-26 21:26:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-26 21:26:03,278 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:26:03,278 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 [2018-09-26 21:26:03,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:03,446 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:26:03,635 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-26 21:26:03,670 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:26:03,670 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-09-26 21:26:03,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 21:26:03,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 21:26:03,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-26 21:26:03,672 INFO L87 Difference]: Start difference. First operand 803 states and 1026 transitions. Second operand 4 states. [2018-09-26 21:26:04,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:04,151 INFO L93 Difference]: Finished difference Result 2327 states and 2917 transitions. [2018-09-26 21:26:04,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 21:26:04,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-09-26 21:26:04,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:04,160 INFO L225 Difference]: With dead ends: 2327 [2018-09-26 21:26:04,160 INFO L226 Difference]: Without dead ends: 1525 [2018-09-26 21:26:04,163 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-26 21:26:04,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1525 states. [2018-09-26 21:26:04,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1525 to 1205. [2018-09-26 21:26:04,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1205 states. [2018-09-26 21:26:04,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1508 transitions. [2018-09-26 21:26:04,448 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1508 transitions. Word has length 32 [2018-09-26 21:26:04,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:04,448 INFO L480 AbstractCegarLoop]: Abstraction has 1205 states and 1508 transitions. [2018-09-26 21:26:04,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 21:26:04,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1508 transitions. [2018-09-26 21:26:04,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-26 21:26:04,456 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:04,456 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2018-09-26 21:26:04,460 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:04,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:04,461 INFO L82 PathProgramCache]: Analyzing trace with hash 2034253683, now seen corresponding path program 2 times [2018-09-26 21:26:04,461 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:04,461 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:04,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:04,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:26:04,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:05,393 WARN L178 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2018-09-26 21:26:06,071 WARN L178 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2018-09-26 21:26:06,100 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 49 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-09-26 21:26:06,101 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:26:06,101 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:26:06,116 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-26 21:26:06,221 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-26 21:26:06,221 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:26:06,230 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:26:06,680 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 17 [2018-09-26 21:26:06,970 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 55 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-09-26 21:26:07,009 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:26:07,009 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-09-26 21:26:07,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 21:26:07,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 21:26:07,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-26 21:26:07,011 INFO L87 Difference]: Start difference. First operand 1205 states and 1508 transitions. Second operand 8 states. [2018-09-26 21:26:07,325 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2018-09-26 21:26:07,809 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2018-09-26 21:26:08,883 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2018-09-26 21:26:09,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:09,590 INFO L93 Difference]: Finished difference Result 2315 states and 2909 transitions. [2018-09-26 21:26:09,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-26 21:26:09,592 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2018-09-26 21:26:09,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:09,598 INFO L225 Difference]: With dead ends: 2315 [2018-09-26 21:26:09,598 INFO L226 Difference]: Without dead ends: 1113 [2018-09-26 21:26:09,601 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2018-09-26 21:26:09,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2018-09-26 21:26:09,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 499. [2018-09-26 21:26:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2018-09-26 21:26:09,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 619 transitions. [2018-09-26 21:26:09,778 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 619 transitions. Word has length 62 [2018-09-26 21:26:09,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:09,779 INFO L480 AbstractCegarLoop]: Abstraction has 499 states and 619 transitions. [2018-09-26 21:26:09,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 21:26:09,779 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 619 transitions. [2018-09-26 21:26:09,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-26 21:26:09,780 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:26:09,781 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:26:09,781 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:26:09,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:26:09,781 INFO L82 PathProgramCache]: Analyzing trace with hash 929696755, now seen corresponding path program 3 times [2018-09-26 21:26:09,781 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:26:09,782 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:26:09,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:09,784 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:26:09,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:26:09,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:26:09,949 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-09-26 21:26:09,949 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:26:09,950 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:26:09,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:26:09,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:26:09,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:09,951 INFO L87 Difference]: Start difference. First operand 499 states and 619 transitions. Second operand 3 states. [2018-09-26 21:26:09,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:26:09,986 INFO L93 Difference]: Finished difference Result 531 states and 654 transitions. [2018-09-26 21:26:09,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:26:09,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2018-09-26 21:26:09,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:26:09,988 INFO L225 Difference]: With dead ends: 531 [2018-09-26 21:26:09,988 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 21:26:09,989 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:26:09,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 21:26:09,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 21:26:09,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 21:26:09,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 21:26:09,990 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-09-26 21:26:09,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:26:09,990 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 21:26:09,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:26:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 21:26:09,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 21:26:09,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 21:26:10,067 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-26 21:26:10,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-26 21:26:10,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-26 21:26:10,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-26 21:26:10,285 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-26 21:26:10,471 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2018-09-26 21:26:10,698 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-09-26 21:26:10,902 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-09-26 21:26:11,134 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2018-09-26 21:26:11,408 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2018-09-26 21:26:11,538 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-09-26 21:26:11,677 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-09-26 21:26:11,835 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-26 21:26:11,838 INFO L422 ceAbstractionStarter]: At program point L403(lines 403 409) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (<= ~r1 0) (<= 0 ~send4) (<= 1 ~mode2) (<= ~mode2 1) (< 0 (+ (div ~send1 256) 1)) (<= ~send1 127) (<= ~send4 127) (= 0 (+ ~nomsg 1)) (<= 0 ~r1)) [2018-09-26 21:26:11,838 INFO L422 ceAbstractionStarter]: At program point L370(lines 370 380) the Hoare annotation is: (and (<= 1 ~mode2) (<= ~mode2 1) (let ((.cse0 (<= ~r1 0)) (.cse1 (<= 0 ~send4)) (.cse2 (not (= ~p1_new ~nomsg))) (.cse3 (< 0 (+ (div ~send1 256) 1))) (.cse4 (<= ~send1 127)) (.cse5 (<= ~send4 127)) (.cse6 (= 0 (+ ~nomsg 1))) (.cse7 (<= 0 ~r1))) (or (and .cse0 (= ~mode5 (* 256 (div ~mode5 256))) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and (not (= ~p1_old ~nomsg)) .cse0 .cse1 (exists ((v_prenex_2 Int)) (let ((.cse8 (mod v_prenex_2 256))) (and (<= .cse8 127) (= ~p4_old .cse8) (<= v_prenex_2 127) (<= 0 v_prenex_2)))) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7)))) [2018-09-26 21:26:11,838 INFO L422 ceAbstractionStarter]: At program point L304(lines 304 315) the Hoare annotation is: (let ((.cse1 (= ~mode5 (* 256 (div ~mode5 256)))) (.cse2 (= ~mode3 (* 256 (div ~mode3 256)))) (.cse10 (not (= ~p1_old ~nomsg))) (.cse0 (<= ~r1 0)) (.cse3 (<= 0 ~send4)) (.cse11 (<= 1 ~mode2)) (.cse12 (<= ~mode2 1)) (.cse4 (not (= ~p1_new ~nomsg))) (.cse5 (< 0 (+ (div ~send1 256) 1))) (.cse6 (<= ~send1 127)) (.cse7 (<= ~send4 127)) (.cse8 (= 0 (+ ~nomsg 1))) (.cse9 (<= 0 ~r1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ~mode2 (* 256 (div ~mode2 256))) .cse6 .cse7 .cse8 .cse9) (and .cse10 .cse1 .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse10 (= ~mode1 (* 256 (div ~mode1 256))) .cse3 .cse11 .cse12 (<= ~r1 1) .cse5 .cse6 .cse7 .cse8) (and .cse10 .cse0 .cse3 .cse11 .cse12 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2018-09-26 21:26:11,839 INFO L422 ceAbstractionStarter]: At program point L387(lines 379 388) the Hoare annotation is: (and (<= ~r1 0) (<= 0 ~send4) (<= 1 ~mode2) (<= ~mode2 1) (not (= ~p1_new ~nomsg)) (< 0 (+ (div ~send1 256) 1)) (<= ~send1 127) (<= ~send4 127) (= 0 (+ ~nomsg 1)) (<= 0 ~r1)) [2018-09-26 21:26:11,839 INFO L422 ceAbstractionStarter]: At program point L321(lines 314 322) the Hoare annotation is: (and (<= ~r1 0) (= ~mode5 (* 256 (div ~mode5 256))) (= ~mode3 (* 256 (div ~mode3 256))) (<= 0 ~send4) (<= 1 ~mode2) (<= ~mode2 1) (not (= ~p1_new ~nomsg)) (< 0 (+ (div ~send1 256) 1)) (<= ~send1 127) (<= ~send4 127) (= 0 (+ ~nomsg 1)) (<= 0 ~r1)) [2018-09-26 21:26:11,839 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 81 448) no Hoare annotation was computed. [2018-09-26 21:26:11,840 INFO L422 ceAbstractionStarter]: At program point L445(lines 274 445) the Hoare annotation is: (let ((.cse0 (<= ~r1 0)) (.cse1 (<= 0 ~send4)) (.cse2 (<= ~send1 127)) (.cse3 (<= ~send4 127)) (.cse4 (= 0 (+ ~nomsg 1))) (.cse5 (<= 0 ~r1))) (or (and .cse0 (= ~mode5 (* 256 (div ~mode5 256))) (<= 0 ~send1) (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) .cse1 .cse2 .cse3 (= ~mode2 (* 256 (div ~mode2 256))) .cse4 .cse5) (and (not (= ~p1_old ~nomsg)) .cse0 .cse1 (<= 1 ~mode2) (<= ~mode2 1) (< 0 (+ (div ~send1 256) 1)) .cse2 .cse3 .cse4 .cse5))) [2018-09-26 21:26:11,840 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 81 448) no Hoare annotation was computed. [2018-09-26 21:26:11,840 INFO L422 ceAbstractionStarter]: At program point L412(lines 408 419) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (<= ~r1 0) (<= 0 ~send4) (<= 1 ~mode2) (<= ~mode2 1) (< 0 (+ (div ~send1 256) 1)) (<= ~send1 127) (<= ~send4 127) (= 0 (+ ~nomsg 1)) (<= 0 ~r1)) [2018-09-26 21:26:11,840 INFO L422 ceAbstractionStarter]: At program point L433(lines 433 440) the Hoare annotation is: (and (<= ULTIMATE.start_assert_~arg 1) (<= 0 ~send4) (<= ~mode2 1) (< 0 (+ (div ~send1 256) 1)) (= 0 (+ ~nomsg 1)) (<= 0 ~r1) (not (= ~p1_old ~nomsg)) (<= ~r1 0) (<= 1 ~mode2) (<= ~send1 127) (<= ~send4 127) (<= 1 ULTIMATE.start_assert_~arg) (<= 1 ULTIMATE.start_check_~tmp~106)) [2018-09-26 21:26:11,840 INFO L422 ceAbstractionStarter]: At program point L326(lines 326 336) the Hoare annotation is: (and (<= ~r1 0) (= ~mode5 (* 256 (div ~mode5 256))) (= ~mode3 (* 256 (div ~mode3 256))) (<= 0 ~send4) (<= 1 ~mode2) (<= ~mode2 1) (not (= ~p1_new ~nomsg)) (< 0 (+ (div ~send1 256) 1)) (<= ~send1 127) (<= ~send4 127) (= 0 (+ ~nomsg 1)) (<= 0 ~r1)) [2018-09-26 21:26:11,840 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 81 448) no Hoare annotation was computed. [2018-09-26 21:26:11,841 INFO L422 ceAbstractionStarter]: At program point L281(lines 281 292) the Hoare annotation is: (let ((.cse0 (<= ~r1 0)) (.cse1 (<= 0 ~send4)) (.cse2 (<= ~send1 127)) (.cse3 (<= ~send4 127)) (.cse4 (= 0 (+ ~nomsg 1))) (.cse5 (<= 0 ~r1))) (or (and .cse0 (= ~mode5 (* 256 (div ~mode5 256))) (<= 0 ~send1) (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) .cse1 .cse2 .cse3 (= ~mode2 (* 256 (div ~mode2 256))) .cse4 .cse5) (and (not (= ~p1_old ~nomsg)) .cse0 .cse1 (<= 1 ~mode2) (<= ~mode2 1) (< 0 (+ (div ~send1 256) 1)) .cse2 .cse3 .cse4 .cse5))) [2018-09-26 21:26:11,841 INFO L422 ceAbstractionStarter]: At program point L343(lines 335 344) the Hoare annotation is: (and (<= ~r1 0) (= ~mode5 (* 256 (div ~mode5 256))) (<= 0 ~send4) (<= 1 ~mode2) (<= ~mode2 1) (not (= ~p1_new ~nomsg)) (< 0 (+ (div ~send1 256) 1)) (<= ~send1 127) (<= ~send4 127) (= 0 (+ ~nomsg 1)) (<= 0 ~r1)) [2018-09-26 21:26:11,841 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 447) no Hoare annotation was computed. [2018-09-26 21:26:11,841 INFO L422 ceAbstractionStarter]: At program point L348(lines 348 358) the Hoare annotation is: (and (<= ~r1 0) (= ~mode5 (* 256 (div ~mode5 256))) (<= 0 ~send4) (<= 1 ~mode2) (<= ~mode2 1) (not (= ~p1_new ~nomsg)) (< 0 (+ (div ~send1 256) 1)) (<= ~send1 127) (<= ~send4 127) (= 0 (+ ~nomsg 1)) (<= 0 ~r1)) [2018-09-26 21:26:11,841 INFO L422 ceAbstractionStarter]: At program point L439(lines 439 446) the Hoare annotation is: false [2018-09-26 21:26:11,841 INFO L422 ceAbstractionStarter]: At program point L365(lines 357 366) the Hoare annotation is: (and (<= 1 ~mode2) (<= ~mode2 1) (let ((.cse0 (<= ~r1 0)) (.cse1 (<= 0 ~send4)) (.cse2 (not (= ~p1_new ~nomsg))) (.cse3 (< 0 (+ (div ~send1 256) 1))) (.cse4 (<= ~send1 127)) (.cse5 (<= ~send4 127)) (.cse6 (= 0 (+ ~nomsg 1))) (.cse7 (<= 0 ~r1))) (or (and .cse0 (= ~mode5 (* 256 (div ~mode5 256))) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and (not (= ~p1_old ~nomsg)) .cse0 .cse1 (exists ((v_prenex_2 Int)) (let ((.cse8 (mod v_prenex_2 256))) (and (<= .cse8 127) (= ~p4_old .cse8) (<= v_prenex_2 127) (<= 0 v_prenex_2)))) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7)))) [2018-09-26 21:26:11,842 INFO L422 ceAbstractionStarter]: At program point L299(lines 291 300) the Hoare annotation is: (let ((.cse1 (= ~mode5 (* 256 (div ~mode5 256)))) (.cse2 (= ~mode3 (* 256 (div ~mode3 256)))) (.cse10 (not (= ~p1_old ~nomsg))) (.cse0 (<= ~r1 0)) (.cse3 (<= 0 ~send4)) (.cse11 (<= 1 ~mode2)) (.cse12 (<= ~mode2 1)) (.cse4 (not (= ~p1_new ~nomsg))) (.cse5 (< 0 (+ (div ~send1 256) 1))) (.cse6 (<= ~send1 127)) (.cse7 (<= ~send4 127)) (.cse8 (= 0 (+ ~nomsg 1))) (.cse9 (<= 0 ~r1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ~mode2 (* 256 (div ~mode2 256))) .cse6 .cse7 .cse8 .cse9) (and .cse10 .cse1 .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse10 (= ~mode1 (* 256 (div ~mode1 256))) .cse3 .cse11 .cse12 (<= ~r1 1) .cse5 .cse6 .cse7 .cse8) (and .cse10 .cse0 .cse3 .cse11 .cse12 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9))) [2018-09-26 21:26:11,842 INFO L422 ceAbstractionStarter]: At program point L423(lines 418 424) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (<= ~r1 0) (<= 0 ~send4) (<= 1 ~mode2) (<= ~mode2 1) (< 0 (+ (div ~send1 256) 1)) (<= ~send1 127) (<= ~send4 127) (= 0 (+ ~nomsg 1)) (<= 1 ULTIMATE.start_check_~tmp~106) (<= 0 ~r1)) [2018-09-26 21:26:11,854 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,856 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,856 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,856 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,859 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,860 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,860 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,860 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,868 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,868 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,868 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,869 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,871 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,871 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,871 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,872 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,880 INFO L202 PluginConnector]: Adding new model pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:26:11 BoogieIcfgContainer [2018-09-26 21:26:11,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 21:26:11,881 INFO L168 Benchmark]: Toolchain (without parser) took 12712.10 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 60.8 MB). Free memory was 1.5 GB in the beginning and 941.2 MB in the end (delta: 520.8 MB). Peak memory consumption was 581.6 MB. Max. memory is 7.1 GB. [2018-09-26 21:26:11,882 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. [2018-09-26 21:26:11,883 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.51 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. [2018-09-26 21:26:11,884 INFO L168 Benchmark]: Boogie Preprocessor took 35.90 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. [2018-09-26 21:26:11,884 INFO L168 Benchmark]: RCFGBuilder took 790.50 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. [2018-09-26 21:26:11,885 INFO L168 Benchmark]: TraceAbstraction took 11829.22 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 60.8 MB). Free memory was 1.4 GB in the beginning and 941.2 MB in the end (delta: 489.1 MB). Peak memory consumption was 549.9 MB. Max. memory is 7.1 GB. [2018-09-26 21:26:11,889 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 49.51 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 35.90 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 790.50 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 11829.22 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 60.8 MB). Free memory was 1.4 GB in the beginning and 941.2 MB in the end (delta: 489.1 MB). Peak memory consumption was 549.9 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_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 447]: 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: 379]: Loop Invariant Derived loop invariant: ((((((((~r1 <= 0 && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1 - InvariantResult [Line: 357]: Loop Invariant [2018-09-26 21:26:11,899 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,900 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,900 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,900 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,902 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,902 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,903 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,903 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] Derived loop invariant: (1 <= ~mode2 && ~mode2 <= 1) && (((((((((~r1 <= 0 && ~mode5 == 256 * (~mode5 / 256)) && 0 <= ~send4) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1) || (((((((((!(~p1_old == ~nomsg) && ~r1 <= 0) && 0 <= ~send4) && (exists v_prenex_2 : int :: ((v_prenex_2 % 256 <= 127 && ~p4_old == v_prenex_2 % 256) && v_prenex_2 <= 127) && 0 <= v_prenex_2)) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1)) - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: (((((((((~r1 <= 0 && ~mode5 == 256 * (~mode5 / 256)) && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1 - InvariantResult [Line: 439]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 314]: Loop Invariant Derived loop invariant: ((((((((((~r1 <= 0 && ~mode5 == 256 * (~mode5 / 256)) && ~mode3 == 256 * (~mode3 / 256)) && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1 - InvariantResult [Line: 403]: Loop Invariant Derived loop invariant: ((((((((!(~p1_old == ~nomsg) && ~r1 <= 0) && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1 - InvariantResult [Line: 291]: Loop Invariant Derived loop invariant: ((((((((((((~r1 <= 0 && ~mode5 == 256 * (~mode5 / 256)) && ~mode3 == 256 * (~mode3 / 256)) && 0 <= ~send4) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1) || ((((((((((!(~p1_old == ~nomsg) && ~mode5 == 256 * (~mode5 / 256)) && ~r1 <= 0) && ~mode3 == 256 * (~mode3 / 256)) && 0 <= ~send4) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1)) || (((((((((!(~p1_old == ~nomsg) && ~mode1 == 256 * (~mode1 / 256)) && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && ~r1 <= 1) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1)) || ((((((((((!(~p1_old == ~nomsg) && ~r1 <= 0) && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1) - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: ((((((((((~r1 <= 0 && ~mode5 == 256 * (~mode5 / 256)) && 0 <= ~send1) && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && 0 <= ~send4) && ~send1 <= 127) && ~send4 <= 127) && ~mode2 == 256 * (~mode2 / 256)) && 0 == ~nomsg + 1) && 0 <= ~r1) || (((((((((!(~p1_old == ~nomsg) && ~r1 <= 0) && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1) - InvariantResult [Line: 370]: Loop Invariant [2018-09-26 21:26:11,908 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,909 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,909 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,909 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,911 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,912 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,912 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2018-09-26 21:26:11,912 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] Derived loop invariant: (1 <= ~mode2 && ~mode2 <= 1) && (((((((((~r1 <= 0 && ~mode5 == 256 * (~mode5 / 256)) && 0 <= ~send4) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1) || (((((((((!(~p1_old == ~nomsg) && ~r1 <= 0) && 0 <= ~send4) && (exists v_prenex_2 : int :: ((v_prenex_2 % 256 <= 127 && ~p4_old == v_prenex_2 % 256) && v_prenex_2 <= 127) && 0 <= v_prenex_2)) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1)) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: (((((((((!(~p1_old == ~nomsg) && ~r1 <= 0) && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 1 <= check_~tmp~106) && 0 <= ~r1 - InvariantResult [Line: 348]: Loop Invariant Derived loop invariant: (((((((((~r1 <= 0 && ~mode5 == 256 * (~mode5 / 256)) && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1 - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: ((((((((!(~p1_old == ~nomsg) && ~r1 <= 0) && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1 - InvariantResult [Line: 433]: Loop Invariant Derived loop invariant: (((((((((((assert_~arg <= 1 && 0 <= ~send4) && ~mode2 <= 1) && 0 < ~send1 / 256 + 1) && 0 == ~nomsg + 1) && 0 <= ~r1) && !(~p1_old == ~nomsg)) && ~r1 <= 0) && 1 <= ~mode2) && ~send1 <= 127) && ~send4 <= 127) && 1 <= assert_~arg) && 1 <= check_~tmp~106 - InvariantResult [Line: 326]: Loop Invariant Derived loop invariant: ((((((((((~r1 <= 0 && ~mode5 == 256 * (~mode5 / 256)) && ~mode3 == 256 * (~mode3 / 256)) && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: ((((((((((((~r1 <= 0 && ~mode5 == 256 * (~mode5 / 256)) && ~mode3 == 256 * (~mode3 / 256)) && 0 <= ~send4) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1) || ((((((((((!(~p1_old == ~nomsg) && ~mode5 == 256 * (~mode5 / 256)) && ~r1 <= 0) && ~mode3 == 256 * (~mode3 / 256)) && 0 <= ~send4) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1)) || (((((((((!(~p1_old == ~nomsg) && ~mode1 == 256 * (~mode1 / 256)) && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && ~r1 <= 1) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1)) || ((((((((((!(~p1_old == ~nomsg) && ~r1 <= 0) && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1) - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: ((((((((((~r1 <= 0 && ~mode5 == 256 * (~mode5 / 256)) && 0 <= ~send1) && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && 0 <= ~send4) && ~send1 <= 127) && ~send4 <= 127) && ~mode2 == 256 * (~mode2 / 256)) && 0 == ~nomsg + 1) && 0 <= ~r1) || (((((((((!(~p1_old == ~nomsg) && ~r1 <= 0) && 0 <= ~send4) && 1 <= ~mode2) && ~mode2 <= 1) && 0 < ~send1 / 256 + 1) && ~send1 <= 127) && ~send4 <= 127) && 0 == ~nomsg + 1) && 0 <= ~r1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. SAFE Result, 11.7s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 4.2s AutomataDifference, 0.0s DeadEndRemovalTime, 1.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 329 SDtfs, 331 SDslu, 305 SDs, 0 SdLazy, 229 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 101 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1205occurred in iteration=8, 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: 0.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 1306 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 50 NumberOfFragments, 1162 HoareAnnotationTreeSize, 16 FomulaSimplifications, 4169 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 16 FomulaSimplificationsInter, 363 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 372 ConstructedInterpolants, 17 QuantifiedInterpolants, 86420 SizeOfPredicates, 5 NumberOfNonLiveVariables, 808 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 281/315 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.5.ufo.BOUNDED-10.pals.c_21.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_21-26-11-923.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.5.ufo.BOUNDED-10.pals.c_21.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_21-26-11-923.csv Received shutdown request...