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/jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cc990c [2018-09-30 23:20:27,817 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 23:20:27,819 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 23:20:27,831 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 23:20:27,831 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 23:20:27,832 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 23:20:27,834 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 23:20:27,835 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 23:20:27,837 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 23:20:27,838 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 23:20:27,839 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 23:20:27,839 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 23:20:27,840 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 23:20:27,842 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 23:20:27,843 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 23:20:27,843 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 23:20:27,844 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 23:20:27,846 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 23:20:27,848 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 23:20:27,853 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 23:20:27,854 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 23:20:27,857 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 23:20:27,861 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 23:20:27,861 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 23:20:27,861 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 23:20:27,862 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 23:20:27,863 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 23:20:27,866 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 23:20:27,867 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 23:20:27,869 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 23:20:27,869 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 23:20:27,870 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 23:20:27,871 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 23:20:27,871 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 23:20:27,872 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 23:20:27,872 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 23:20:27,875 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 [2018-09-30 23:20:27,905 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 23:20:27,905 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 23:20:27,906 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 23:20:27,906 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 23:20:27,907 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 23:20:27,907 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 23:20:27,907 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 23:20:27,908 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 23:20:27,908 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 23:20:27,909 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 23:20:27,909 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 23:20:27,909 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 23:20:27,909 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 23:20:27,909 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 23:20:27,910 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 23:20:27,910 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 23:20:27,910 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 23:20:27,910 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 23:20:27,910 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 23:20:27,911 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 23:20:27,911 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 23:20:27,911 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 23:20:27,911 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 23:20:27,911 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 23:20:27,912 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 23:20:27,912 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 23:20:27,912 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 23:20:27,912 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 23:20:27,912 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 23:20:27,913 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 23:20:27,957 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 23:20:27,970 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 23:20:27,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 23:20:27,975 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 23:20:27,976 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 23:20:27,977 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl [2018-09-30 23:20:27,977 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl' [2018-09-30 23:20:28,029 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 23:20:28,032 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 23:20:28,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 23:20:28,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 23:20:28,033 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 23:20:28,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:20:28" (1/1) ... [2018-09-30 23:20:28,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:20:28" (1/1) ... [2018-09-30 23:20:28,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 23:20:28,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 23:20:28,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 23:20:28,069 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 23:20:28,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:20:28" (1/1) ... [2018-09-30 23:20:28,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:20:28" (1/1) ... [2018-09-30 23:20:28,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:20:28" (1/1) ... [2018-09-30 23:20:28,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:20:28" (1/1) ... [2018-09-30 23:20:28,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:20:28" (1/1) ... [2018-09-30 23:20:28,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:20:28" (1/1) ... [2018-09-30 23:20:28,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:20:28" (1/1) ... [2018-09-30 23:20:28,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 23:20:28,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 23:20:28,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 23:20:28,089 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 23:20:28,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:20:28" (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 [2018-09-30 23:20:28,168 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-30 23:20:28,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-30 23:20:28,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-30 23:20:28,411 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-30 23:20:28,412 INFO L202 PluginConnector]: Adding new model jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 11:20:28 BoogieIcfgContainer [2018-09-30 23:20:28,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 23:20:28,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 23:20:28,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 23:20:28,418 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 23:20:28,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 11:20:28" (1/2) ... [2018-09-30 23:20:28,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a9e138 and model type jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 11:20:28, skipping insertion in model container [2018-09-30 23:20:28,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 11:20:28" (2/2) ... [2018-09-30 23:20:28,422 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl [2018-09-30 23:20:28,434 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 23:20:28,446 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 23:20:28,505 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 23:20:28,506 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 23:20:28,506 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 23:20:28,506 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 23:20:28,506 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 23:20:28,506 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 23:20:28,507 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 23:20:28,507 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 23:20:28,507 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 23:20:28,527 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-30 23:20:28,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 23:20:28,537 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 23:20:28,544 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-30 23:20:28,545 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 23:20:28,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 23:20:28,551 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2018-09-30 23:20:28,553 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 23:20:28,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 23:20:28,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:20:28,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 23:20:28,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:20:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:20:29,028 WARN L178 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2018-09-30 23:20:29,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 23:20:29,034 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 23:20:29,035 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 23:20:29,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 23:20:29,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 23:20:29,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 23:20:29,056 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-30 23:20:29,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 23:20:29,111 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-09-30 23:20:29,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 23:20:29,113 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-30 23:20:29,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 23:20:29,127 INFO L225 Difference]: With dead ends: 9 [2018-09-30 23:20:29,127 INFO L226 Difference]: Without dead ends: 5 [2018-09-30 23:20:29,130 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 23:20:29,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-09-30 23:20:29,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-09-30 23:20:29,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-09-30 23:20:29,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-09-30 23:20:29,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-09-30 23:20:29,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 23:20:29,165 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-09-30 23:20:29,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 23:20:29,165 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-09-30 23:20:29,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-30 23:20:29,165 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 23:20:29,165 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-30 23:20:29,166 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 23:20:29,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 23:20:29,166 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2018-09-30 23:20:29,166 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 23:20:29,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 23:20:29,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:20:29,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 23:20:29,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:20:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:20:29,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 23:20:29,345 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 23:20:29,345 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 [2018-09-30 23:20:29,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 23:20:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:20:29,385 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 23:20:29,629 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-30 23:20:29,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 23:20:29,677 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 23:20:29,677 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2018-09-30 23:20:29,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-30 23:20:29,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-30 23:20:29,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-30 23:20:29,679 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 5 states. [2018-09-30 23:20:29,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 23:20:29,792 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-09-30 23:20:29,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-30 23:20:29,793 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-09-30 23:20:29,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 23:20:29,794 INFO L225 Difference]: With dead ends: 8 [2018-09-30 23:20:29,794 INFO L226 Difference]: Without dead ends: 6 [2018-09-30 23:20:29,795 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-30 23:20:29,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-09-30 23:20:29,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-09-30 23:20:29,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-09-30 23:20:29,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-30 23:20:29,799 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-09-30 23:20:29,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 23:20:29,799 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-09-30 23:20:29,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-30 23:20:29,800 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-30 23:20:29,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-30 23:20:29,800 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 23:20:29,801 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-09-30 23:20:29,801 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 23:20:29,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 23:20:29,801 INFO L82 PathProgramCache]: Analyzing trace with hash 28844579, now seen corresponding path program 2 times [2018-09-30 23:20:29,802 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 23:20:29,802 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 23:20:29,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:20:29,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 23:20:29,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:20:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:20:30,336 WARN L178 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-09-30 23:20:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 23:20:30,338 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 23:20:30,339 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 [2018-09-30 23:20:30,356 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-30 23:20:30,388 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-30 23:20:30,389 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 23:20:30,390 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 23:20:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 23:20:30,542 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 23:20:30,542 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-09-30 23:20:30,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-30 23:20:30,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-30 23:20:30,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-30 23:20:30,544 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 6 states. [2018-09-30 23:20:30,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 23:20:30,724 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-09-30 23:20:30,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-30 23:20:30,726 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-09-30 23:20:30,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 23:20:30,728 INFO L225 Difference]: With dead ends: 10 [2018-09-30 23:20:30,728 INFO L226 Difference]: Without dead ends: 8 [2018-09-30 23:20:30,728 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-30 23:20:30,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-30 23:20:30,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-09-30 23:20:30,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-09-30 23:20:30,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-09-30 23:20:30,733 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2018-09-30 23:20:30,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 23:20:30,733 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-09-30 23:20:30,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-30 23:20:30,734 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-09-30 23:20:30,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-30 23:20:30,734 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 23:20:30,735 INFO L375 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2018-09-30 23:20:30,735 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 23:20:30,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 23:20:30,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1949894467, now seen corresponding path program 3 times [2018-09-30 23:20:30,736 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 23:20:30,736 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 23:20:30,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:20:30,738 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 23:20:30,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:20:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:20:30,998 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-30 23:20:30,999 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 23:20:30,999 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 [2018-09-30 23:20:31,009 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-30 23:20:31,041 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-09-30 23:20:31,041 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 23:20:31,044 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 23:20:31,251 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 23:20:31,273 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 23:20:31,273 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2018-09-30 23:20:31,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-30 23:20:31,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-30 23:20:31,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-30 23:20:31,274 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 9 states. [2018-09-30 23:20:31,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 23:20:31,411 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-09-30 23:20:31,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-30 23:20:31,412 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 7 [2018-09-30 23:20:31,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 23:20:31,413 INFO L225 Difference]: With dead ends: 9 [2018-09-30 23:20:31,413 INFO L226 Difference]: Without dead ends: 0 [2018-09-30 23:20:31,414 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-30 23:20:31,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-30 23:20:31,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-30 23:20:31,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-30 23:20:31,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-30 23:20:31,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-09-30 23:20:31,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 23:20:31,417 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-30 23:20:31,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-30 23:20:31,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-30 23:20:31,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-30 23:20:31,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-30 23:20:31,704 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 9 [2018-09-30 23:20:31,707 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 55) no Hoare annotation was computed. [2018-09-30 23:20:31,707 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 54) no Hoare annotation was computed. [2018-09-30 23:20:31,708 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 55) no Hoare annotation was computed. [2018-09-30 23:20:31,708 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 55) no Hoare annotation was computed. [2018-09-30 23:20:31,708 INFO L422 ceAbstractionStarter]: At program point L43(lines 43 53) the Hoare annotation is: false [2018-09-30 23:20:31,708 INFO L422 ceAbstractionStarter]: At program point L52(lines 30 52) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~y~5)) (.cse0 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~x~5))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-09-30 23:20:31,717 INFO L202 PluginConnector]: Adding new model jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 11:20:31 BoogieIcfgContainer [2018-09-30 23:20:31,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 23:20:31,718 INFO L168 Benchmark]: Toolchain (without parser) took 3688.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. [2018-09-30 23:20:31,719 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 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. [2018-09-30 23:20:31,720 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.42 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. [2018-09-30 23:20:31,721 INFO L168 Benchmark]: Boogie Preprocessor took 19.84 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. [2018-09-30 23:20:31,721 INFO L168 Benchmark]: RCFGBuilder took 324.07 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. [2018-09-30 23:20:31,722 INFO L168 Benchmark]: TraceAbstraction took 3303.32 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 119.0 MB). Peak memory consumption was 119.0 MB. Max. memory is 7.1 GB. [2018-09-30 23:20:31,727 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 0.18 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 35.42 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 19.84 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 324.07 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 3303.32 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 119.0 MB). Peak memory consumption was 119.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 54]: 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: 43]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: main_~j~5 + main_~x~5 <= main_~i~5 + main_~y~5 && main_~i~5 + main_~y~5 <= main_~j~5 + main_~x~5 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 7 SDs, 0 SdLazy, 58 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=3, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 15 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 114 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 1580 SizeOfPredicates, 12 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 1/28 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/jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-30_23-20-31-739.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/jm2006.c.i_3.bplTransformedIcfg_BEv2_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_23-20-31-739.csv Received shutdown request...