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/20170319-ConjunctivePathPrograms/num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 21:16:58,772 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 21:16:58,774 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 21:16:58,787 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 21:16:58,787 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 21:16:58,788 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 21:16:58,789 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 21:16:58,791 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 21:16:58,793 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 21:16:58,794 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 21:16:58,794 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-26 21:16:58,828 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 21:16:58,842 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 21:16:58,842 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 21:16:58,843 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 21:16:58,843 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 21:16:58,844 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 21:16:58,844 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 21:16:58,844 INFO L133 SettingsManager]: * Use SBE=true [2018-09-26 21:16:58,845 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 21:16:58,845 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 21:16:58,845 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 21:16:58,845 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 21:16:58,845 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 21:16:58,845 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 21:16:58,846 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 21:16:58,846 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 21:16:58,846 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 21:16:58,846 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 21:16:58,846 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 21:16:58,847 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 21:16:58,847 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-26 21:16:58,847 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 21:16:58,847 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-26 21:16:58,847 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:16:58,848 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 21:16:58,848 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 21:16:58,848 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 21:16:58,848 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-26 21:16:58,848 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 21:16:58,849 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 21:16:58,849 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 21:16:58,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 21:16:58,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 21:16:58,915 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 21:16:58,917 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 21:16:58,918 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 21:16:58,918 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl [2018-09-26 21:16:58,919 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl' [2018-09-26 21:16:58,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 21:16:58,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 21:16:58,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 21:16:58,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 21:16:58,976 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 21:16:58,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:58" (1/1) ... [2018-09-26 21:16:59,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:58" (1/1) ... [2018-09-26 21:16:59,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 21:16:59,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 21:16:59,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 21:16:59,021 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 21:16:59,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:58" (1/1) ... [2018-09-26 21:16:59,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:58" (1/1) ... [2018-09-26 21:16:59,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:58" (1/1) ... [2018-09-26 21:16:59,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:58" (1/1) ... [2018-09-26 21:16:59,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:58" (1/1) ... [2018-09-26 21:16:59,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:58" (1/1) ... [2018-09-26 21:16:59,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:58" (1/1) ... [2018-09-26 21:16:59,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 21:16:59,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 21:16:59,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 21:16:59,045 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 21:16:59,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:58" (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 21:16:59,132 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-26 21:16:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 21:16:59,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 21:16:59,333 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 21:16:59,334 INFO L202 PluginConnector]: Adding new model num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:16:59 BoogieIcfgContainer [2018-09-26 21:16:59,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 21:16:59,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 21:16:59,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 21:16:59,339 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 21:16:59,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:58" (1/2) ... [2018-09-26 21:16:59,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb070f3 and model type num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:16:59, skipping insertion in model container [2018-09-26 21:16:59,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:16:59" (2/2) ... [2018-09-26 21:16:59,343 INFO L112 eAbstractionObserver]: Analyzing ICFG num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl [2018-09-26 21:16:59,353 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-26 21:16:59,362 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 21:16:59,417 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 21:16:59,418 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 21:16:59,418 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 21:16:59,418 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-26 21:16:59,419 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 21:16:59,420 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 21:16:59,420 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 21:16:59,420 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 21:16:59,420 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 21:16:59,439 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-26 21:16:59,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-26 21:16:59,448 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:16:59,452 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-26 21:16:59,455 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:16:59,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:16:59,466 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2018-09-26 21:16:59,468 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:16:59,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:16:59,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:16:59,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:16:59,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:16:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:16:59,675 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 21:16:59,677 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:16:59,678 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:16:59,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:16:59,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:16:59,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:16:59,701 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-26 21:16:59,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:16:59,745 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-09-26 21:16:59,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:16:59,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-26 21:16:59,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:16:59,759 INFO L225 Difference]: With dead ends: 9 [2018-09-26 21:16:59,759 INFO L226 Difference]: Without dead ends: 5 [2018-09-26 21:16:59,763 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 21:16:59,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-09-26 21:16:59,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-09-26 21:16:59,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-09-26 21:16:59,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-09-26 21:16:59,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-09-26 21:16:59,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:16:59,802 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-09-26 21:16:59,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:16:59,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-09-26 21:16:59,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 21:16:59,803 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:16:59,803 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 21:16:59,803 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:16:59,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:16:59,804 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2018-09-26 21:16:59,804 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:16:59,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:16:59,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:16:59,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:16:59,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:16:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:16:59,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:16:59,992 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:16:59,992 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 21:17:00,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:17:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:00,051 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:17:00,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:00,111 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:17:00,111 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-09-26 21:17:00,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 21:17:00,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 21:17:00,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-26 21:17:00,114 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2018-09-26 21:17:00,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:00,153 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-09-26 21:17:00,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 21:17:00,154 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-09-26 21:17:00,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:00,154 INFO L225 Difference]: With dead ends: 8 [2018-09-26 21:17:00,154 INFO L226 Difference]: Without dead ends: 6 [2018-09-26 21:17:00,156 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 21:17:00,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-09-26 21:17:00,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-09-26 21:17:00,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-09-26 21:17:00,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-26 21:17:00,158 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-09-26 21:17:00,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:00,158 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-09-26 21:17:00,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 21:17:00,159 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-26 21:17:00,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 21:17:00,159 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:00,159 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-09-26 21:17:00,160 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:00,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:00,160 INFO L82 PathProgramCache]: Analyzing trace with hash 28844579, now seen corresponding path program 2 times [2018-09-26 21:17:00,160 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:00,161 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:00,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:00,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:17:00,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:00,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:00,273 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:17:00,273 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 21:17:00,285 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-26 21:17:00,323 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-26 21:17:00,324 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:17:00,329 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:17:00,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:00,360 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:17:00,361 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-09-26 21:17:00,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 21:17:00,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 21:17:00,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-26 21:17:00,362 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 5 states. [2018-09-26 21:17:00,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:00,388 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-09-26 21:17:00,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 21:17:00,389 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2018-09-26 21:17:00,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:00,389 INFO L225 Difference]: With dead ends: 9 [2018-09-26 21:17:00,390 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 21:17:00,390 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-26 21:17:00,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 21:17:00,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 21:17:00,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 21:17:00,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 21:17:00,393 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2018-09-26 21:17:00,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:00,396 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 21:17:00,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 21:17:00,396 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 21:17:00,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 21:17:00,397 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:00,397 INFO L375 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2018-09-26 21:17:00,397 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:00,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:00,398 INFO L82 PathProgramCache]: Analyzing trace with hash 894183756, now seen corresponding path program 3 times [2018-09-26 21:17:00,398 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:00,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:00,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:00,400 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:17:00,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:00,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:00,544 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:17:00,544 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:17:00,553 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-26 21:17:00,617 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-09-26 21:17:00,618 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:17:00,620 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:17:00,631 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:00,652 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:17:00,652 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-09-26 21:17:00,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 21:17:00,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 21:17:00,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-09-26 21:17:00,653 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-09-26 21:17:00,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:00,686 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-09-26 21:17:00,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-26 21:17:00,687 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-09-26 21:17:00,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:00,688 INFO L225 Difference]: With dead ends: 10 [2018-09-26 21:17:00,688 INFO L226 Difference]: Without dead ends: 8 [2018-09-26 21:17:00,689 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-09-26 21:17:00,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-26 21:17:00,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-09-26 21:17:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-09-26 21:17:00,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-09-26 21:17:00,692 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-09-26 21:17:00,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:00,692 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-09-26 21:17:00,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 21:17:00,692 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-09-26 21:17:00,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 21:17:00,693 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:00,693 INFO L375 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2018-09-26 21:17:00,693 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:00,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:00,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1949894467, now seen corresponding path program 4 times [2018-09-26 21:17:00,694 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:00,694 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:00,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:00,696 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:17:00,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:01,091 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:01,092 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:17:01,092 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:17:01,116 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-26 21:17:01,157 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-26 21:17:01,158 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:17:01,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:17:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:01,194 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:17:01,194 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-09-26 21:17:01,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 21:17:01,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 21:17:01,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-09-26 21:17:01,196 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2018-09-26 21:17:01,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:01,230 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-09-26 21:17:01,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 21:17:01,230 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2018-09-26 21:17:01,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:01,231 INFO L225 Difference]: With dead ends: 11 [2018-09-26 21:17:01,231 INFO L226 Difference]: Without dead ends: 9 [2018-09-26 21:17:01,232 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-09-26 21:17:01,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-09-26 21:17:01,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-09-26 21:17:01,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-26 21:17:01,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-09-26 21:17:01,236 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-09-26 21:17:01,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:01,236 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-09-26 21:17:01,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 21:17:01,237 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-09-26 21:17:01,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 21:17:01,237 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:01,237 INFO L375 BasicCegarLoop]: trace histogram [5, 1, 1, 1] [2018-09-26 21:17:01,238 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:01,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:01,238 INFO L82 PathProgramCache]: Analyzing trace with hash 317188140, now seen corresponding path program 5 times [2018-09-26 21:17:01,238 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:01,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:01,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:01,240 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:17:01,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:01,401 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:01,401 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:17:01,401 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:17:01,421 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-26 21:17:01,490 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-09-26 21:17:01,490 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:17:01,492 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:17:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:01,520 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:17:01,520 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-09-26 21:17:01,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 21:17:01,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 21:17:01,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-09-26 21:17:01,522 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 8 states. [2018-09-26 21:17:01,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:01,563 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-09-26 21:17:01,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-26 21:17:01,565 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-09-26 21:17:01,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:01,566 INFO L225 Difference]: With dead ends: 12 [2018-09-26 21:17:01,566 INFO L226 Difference]: Without dead ends: 10 [2018-09-26 21:17:01,567 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-09-26 21:17:01,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-09-26 21:17:01,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-09-26 21:17:01,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-09-26 21:17:01,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-09-26 21:17:01,572 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-09-26 21:17:01,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:01,573 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-09-26 21:17:01,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 21:17:01,573 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-09-26 21:17:01,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-26 21:17:01,574 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:01,575 INFO L375 BasicCegarLoop]: trace histogram [6, 1, 1, 1] [2018-09-26 21:17:01,575 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:01,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:01,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1242899555, now seen corresponding path program 6 times [2018-09-26 21:17:01,576 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:01,576 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:01,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:01,577 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:17:01,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:01,758 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:01,759 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:17:01,759 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:17:01,772 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-26 21:17:01,798 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2018-09-26 21:17:01,798 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:17:01,801 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:17:01,810 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:01,831 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:17:01,831 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-09-26 21:17:01,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-26 21:17:01,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-26 21:17:01,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-09-26 21:17:01,833 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2018-09-26 21:17:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:01,874 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-09-26 21:17:01,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-26 21:17:01,878 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2018-09-26 21:17:01,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:01,878 INFO L225 Difference]: With dead ends: 13 [2018-09-26 21:17:01,878 INFO L226 Difference]: Without dead ends: 11 [2018-09-26 21:17:01,879 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-09-26 21:17:01,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-09-26 21:17:01,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-09-26 21:17:01,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-09-26 21:17:01,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-09-26 21:17:01,882 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-09-26 21:17:01,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:01,882 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-09-26 21:17:01,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-26 21:17:01,883 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-09-26 21:17:01,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 21:17:01,883 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:01,883 INFO L375 BasicCegarLoop]: trace histogram [7, 1, 1, 1] [2018-09-26 21:17:01,884 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:01,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:01,884 INFO L82 PathProgramCache]: Analyzing trace with hash -124817652, now seen corresponding path program 7 times [2018-09-26 21:17:01,884 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:01,885 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:01,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:01,886 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:17:01,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:02,177 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:02,178 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:17:02,178 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:17:02,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:17:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:02,207 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:17:02,215 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:02,237 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:17:02,237 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-09-26 21:17:02,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-26 21:17:02,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-26 21:17:02,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-09-26 21:17:02,239 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-09-26 21:17:02,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:02,293 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-09-26 21:17:02,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-26 21:17:02,294 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2018-09-26 21:17:02,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:02,295 INFO L225 Difference]: With dead ends: 14 [2018-09-26 21:17:02,295 INFO L226 Difference]: Without dead ends: 12 [2018-09-26 21:17:02,295 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-09-26 21:17:02,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-09-26 21:17:02,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-09-26 21:17:02,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-09-26 21:17:02,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-09-26 21:17:02,298 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-09-26 21:17:02,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:02,299 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-09-26 21:17:02,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-26 21:17:02,299 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-09-26 21:17:02,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-26 21:17:02,299 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:02,299 INFO L375 BasicCegarLoop]: trace histogram [8, 1, 1, 1] [2018-09-26 21:17:02,300 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:02,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:02,300 INFO L82 PathProgramCache]: Analyzing trace with hash 425621891, now seen corresponding path program 8 times [2018-09-26 21:17:02,300 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:02,300 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:02,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:02,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:17:02,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-26 21:17:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-26 21:17:02,387 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-09-26 21:17:02,413 INFO L202 PluginConnector]: Adding new model num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:17:02 BoogieIcfgContainer [2018-09-26 21:17:02,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 21:17:02,414 INFO L168 Benchmark]: Toolchain (without parser) took 3444.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 214.1 MB). Peak memory consumption was 214.1 MB. Max. memory is 7.1 GB. [2018-09-26 21:17:02,416 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.27 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 21:17:02,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.61 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 21:17:02,417 INFO L168 Benchmark]: Boogie Preprocessor took 23.22 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 21:17:02,418 INFO L168 Benchmark]: RCFGBuilder took 289.82 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 21:17:02,418 INFO L168 Benchmark]: TraceAbstraction took 3078.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 193.0 MB). Peak memory consumption was 193.0 MB. Max. memory is 7.1 GB. [2018-09-26 21:17:02,422 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 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.61 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 23.22 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. * RCFGBuilder took 289.82 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3078.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 193.0 MB). Peak memory consumption was 193.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: assertion can be violated assertion can be violated We found a FailurePath: [L14] havoc main_#res; [L15] havoc main_~bit~5, main_~c~4, main_~x~4, main_~y~4, main_~i~5; [L16] havoc main_~x~4; [L17] havoc main_~y~4; [L18] havoc main_~c~4; [L19] main_~x~4 := 37; [L20] main_~y~4 := 0; [L21] main_~c~4 := 0; VAL [main_~c~4=0, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=1, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=2, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=3, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=4, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=5, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=6, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=7, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L36] assume 0 <= main_~c~4 && main_~c~4 < 8; [L37] havoc main_~i~5; [L38] havoc main_~bit~5; [L39] assume 256 + 256 <= main_~bit~5 && !(main_~bit~5 % 256 == 0); [L40] assume (0 <= main_~y~4 && main_~y~4 < 256) && main_~i~5 < -256; [L41] main_~y~4 := main_~i~5 % 256 + main_~y~4; [L42] assume 0 <= main_~c~4 && main_~c~4 < 256; [L43] main_~c~4 := main_~c~4 + 1; VAL [main_~bit~5=767, main_~c~4=8, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L28] assume !(main_~c~4 < 8) && main_~c~4 < 256; [L29] assume (((main_~y~4 < 256 && 0 <= main_~y~4) && 0 <= main_~x~4) && main_~x~4 < 256) && !(main_~x~4 == main_~y~4); [L30] __VERIFIER_assert_#in~cond := 0; [L31] havoc __VERIFIER_assert_~cond; [L32] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; [L33] assume __VERIFIER_assert_~cond == 0; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~bit~5=767, main_~c~4=8, main_~i~5=-512, main_~x~4=37, main_~y~4=0] [L46] assert false; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~bit~5=767, main_~c~4=8, main_~i~5=-512, main_~x~4=37, main_~y~4=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. UNSAFE Result, 3.0s OverallTime, 9 OverallIterations, 8 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 0 SDslu, 36 SDs, 0 SdLazy, 80 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 1520 SizeOfPredicates, 7 NumberOfNonLiveVariables, 490 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 15 InterpolantComputations, 1 PerfectInterpolantSequences, 0/168 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_21-17-02-434.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/num_conversion_1.i_3.bplTransformedIcfg_BEv2_9.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_21-17-02-434.csv Received shutdown request...