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_PUPT.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 21:46:12,024 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 21:46:12,026 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 21:46:12,040 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 21:46:12,040 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 21:46:12,042 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 21:46:12,045 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 21:46:12,047 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 21:46:12,049 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 21:46:12,050 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 21:46:12,051 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 21:46:12,051 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 21:46:12,052 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 21:46:12,053 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 21:46:12,055 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 21:46:12,055 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 21:46:12,056 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 21:46:12,058 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 21:46:12,060 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 21:46:12,062 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 21:46:12,063 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 21:46:12,064 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 21:46:12,067 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-26 21:46:12,078 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf [2018-09-26 21:46:12,105 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 21:46:12,106 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 21:46:12,106 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 21:46:12,107 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 21:46:12,107 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 21:46:12,109 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 21:46:12,109 INFO L133 SettingsManager]: * Use SBE=true [2018-09-26 21:46:12,109 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 21:46:12,109 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 21:46:12,110 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 21:46:12,110 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 21:46:12,110 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 21:46:12,110 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 21:46:12,111 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 21:46:12,111 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 21:46:12,111 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 21:46:12,112 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 21:46:12,112 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 21:46:12,112 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 21:46:12,112 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-26 21:46:12,114 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 21:46:12,114 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-26 21:46:12,114 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:46:12,114 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 21:46:12,114 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 21:46:12,115 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 21:46:12,115 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-26 21:46:12,115 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 21:46:12,115 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 21:46:12,115 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 21:46:12,115 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-26 21:46:12,160 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 21:46:12,175 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 21:46:12,182 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 21:46:12,183 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 21:46:12,184 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 21:46:12,185 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005.c.i_3.bpl [2018-09-26 21:46:12,185 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005.c.i_3.bpl' [2018-09-26 21:46:12,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 21:46:12,247 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 21:46:12,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 21:46:12,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 21:46:12,248 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 21:46:12,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:46:12" (1/1) ... [2018-09-26 21:46:12,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:46:12" (1/1) ... [2018-09-26 21:46:12,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 21:46:12,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 21:46:12,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 21:46:12,291 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 21:46:12,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:46:12" (1/1) ... [2018-09-26 21:46:12,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:46:12" (1/1) ... [2018-09-26 21:46:12,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:46:12" (1/1) ... [2018-09-26 21:46:12,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:46:12" (1/1) ... [2018-09-26 21:46:12,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:46:12" (1/1) ... [2018-09-26 21:46:12,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:46:12" (1/1) ... [2018-09-26 21:46:12,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:46:12" (1/1) ... [2018-09-26 21:46:12,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 21:46:12,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 21:46:12,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 21:46:12,314 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 21:46:12,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:46:12" (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 21:46:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 21:46:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 21:46:12,629 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 21:46:12,630 INFO L202 PluginConnector]: Adding new model cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:46:12 BoogieIcfgContainer [2018-09-26 21:46:12,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 21:46:12,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 21:46:12,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 21:46:12,640 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 21:46:12,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:46:12" (1/2) ... [2018-09-26 21:46:12,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c2e102d and model type cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:46:12, skipping insertion in model container [2018-09-26 21:46:12,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:46:12" (2/2) ... [2018-09-26 21:46:12,644 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005.c.i_3.bpl [2018-09-26 21:46:12,654 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-26 21:46:12,662 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 21:46:12,710 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 21:46:12,710 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 21:46:12,711 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 21:46:12,711 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-26 21:46:12,711 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 21:46:12,711 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 21:46:12,712 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 21:46:12,712 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 21:46:12,712 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 21:46:12,728 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-09-26 21:46:12,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 21:46:12,734 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:46:12,735 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 21:46:12,739 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:46:12,750 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 21:46:12,750 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-09-26 21:46:12,752 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:46:12,753 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:46:12,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:46:12,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:46:12,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:46:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:46:12,986 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 21:46:12,989 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:46:12,989 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:46:12,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:46:13,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:46:13,006 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-26 21:46:13,008 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-09-26 21:46:13,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:46:13,136 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-09-26 21:46:13,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:46:13,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 21:46:13,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:46:13,166 INFO L225 Difference]: With dead ends: 11 [2018-09-26 21:46:13,167 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 21:46:13,172 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-26 21:46:13,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 21:46:13,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 21:46:13,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 21:46:13,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 21:46:13,235 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 21:46:13,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:46:13,236 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 21:46:13,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:46:13,236 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 21:46:13,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 21:46:13,237 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:46:13,237 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 21:46:13,237 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:46:13,237 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 21:46:13,238 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-09-26 21:46:13,238 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:46:13,238 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:46:13,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:46:13,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:46:13,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:46:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:46:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:46:13,303 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:46:13,303 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 21:46:13,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:46:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:46:13,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:46:13,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:46:13,699 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:46:13,700 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2018-09-26 21:46:13,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 21:46:13,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 21:46:13,701 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-26 21:46:13,702 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-09-26 21:46:14,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:46:14,022 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-09-26 21:46:14,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 21:46:14,023 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-09-26 21:46:14,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:46:14,023 INFO L225 Difference]: With dead ends: 11 [2018-09-26 21:46:14,024 INFO L226 Difference]: Without dead ends: 9 [2018-09-26 21:46:14,025 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-26 21:46:14,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-09-26 21:46:14,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-09-26 21:46:14,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-26 21:46:14,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-09-26 21:46:14,029 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-09-26 21:46:14,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:46:14,029 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-09-26 21:46:14,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 21:46:14,029 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-09-26 21:46:14,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 21:46:14,030 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:46:14,030 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-09-26 21:46:14,031 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:46:14,031 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 21:46:14,031 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-09-26 21:46:14,031 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:46:14,031 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:46:14,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:46:14,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:46:14,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:46:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:46:14,167 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 21:46:14,168 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:46:14,168 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 21:46:14,181 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-26 21:46:14,194 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-26 21:46:14,194 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:46:14,195 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:46:14,448 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 21:46:14,473 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:46:14,473 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-09-26 21:46:14,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 21:46:14,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 21:46:14,474 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-26 21:46:14,474 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 8 states. [2018-09-26 21:46:14,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:46:14,666 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-09-26 21:46:14,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 21:46:14,668 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-09-26 21:46:14,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:46:14,668 INFO L225 Difference]: With dead ends: 13 [2018-09-26 21:46:14,669 INFO L226 Difference]: Without dead ends: 11 [2018-09-26 21:46:14,669 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-26 21:46:14,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-09-26 21:46:14,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-09-26 21:46:14,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-09-26 21:46:14,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-09-26 21:46:14,674 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-09-26 21:46:14,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:46:14,674 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-09-26 21:46:14,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 21:46:14,675 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-09-26 21:46:14,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 21:46:14,675 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:46:14,676 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-09-26 21:46:14,676 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:46:14,676 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 21:46:14,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1946815861, now seen corresponding path program 3 times [2018-09-26 21:46:14,677 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:46:14,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:46:14,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:46:14,678 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:46:14,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:46:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:46:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:46:14,771 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:46:14,771 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 21:46:14,783 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-26 21:46:14,795 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-09-26 21:46:14,795 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:46:14,798 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:46:15,053 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:46:15,084 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:46:15,084 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2018-09-26 21:46:15,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-26 21:46:15,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-26 21:46:15,086 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-26 21:46:15,086 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-09-26 21:46:15,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:46:15,200 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-09-26 21:46:15,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-26 21:46:15,202 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2018-09-26 21:46:15,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:46:15,202 INFO L225 Difference]: With dead ends: 15 [2018-09-26 21:46:15,202 INFO L226 Difference]: Without dead ends: 13 [2018-09-26 21:46:15,203 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-26 21:46:15,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-09-26 21:46:15,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-09-26 21:46:15,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-26 21:46:15,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-09-26 21:46:15,207 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-09-26 21:46:15,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:46:15,207 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-09-26 21:46:15,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-26 21:46:15,208 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-09-26 21:46:15,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 21:46:15,208 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:46:15,208 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1] [2018-09-26 21:46:15,209 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:46:15,209 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 21:46:15,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1715646545, now seen corresponding path program 4 times [2018-09-26 21:46:15,209 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:46:15,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:46:15,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:46:15,210 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:46:15,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:46:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:46:15,364 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:46:15,364 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:46:15,364 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 21:46:15,373 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-26 21:46:15,382 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-26 21:46:15,383 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:46:15,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:46:15,762 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:46:15,793 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:46:15,794 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-09-26 21:46:15,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 21:46:15,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 21:46:15,795 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-26 21:46:15,795 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 7 states. [2018-09-26 21:46:16,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:46:16,058 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-09-26 21:46:16,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 21:46:16,059 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-09-26 21:46:16,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:46:16,060 INFO L225 Difference]: With dead ends: 17 [2018-09-26 21:46:16,060 INFO L226 Difference]: Without dead ends: 15 [2018-09-26 21:46:16,060 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-26 21:46:16,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-26 21:46:16,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-09-26 21:46:16,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-26 21:46:16,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-26 21:46:16,065 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-09-26 21:46:16,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:46:16,066 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-26 21:46:16,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 21:46:16,066 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-26 21:46:16,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 21:46:16,066 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:46:16,067 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1] [2018-09-26 21:46:16,067 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:46:16,067 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 21:46:16,067 INFO L82 PathProgramCache]: Analyzing trace with hash 531164009, now seen corresponding path program 5 times [2018-09-26 21:46:16,067 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:46:16,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:46:16,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:46:16,069 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:46:16,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:46:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:46:16,161 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:46:16,161 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:46:16,161 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-26 21:46:16,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 21:46:16,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 21:46:16,162 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-26 21:46:16,162 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 7 states. [2018-09-26 21:46:16,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:46:16,219 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-09-26 21:46:16,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 21:46:16,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-09-26 21:46:16,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:46:16,221 INFO L225 Difference]: With dead ends: 15 [2018-09-26 21:46:16,221 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 21:46:16,222 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-26 21:46:16,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 21:46:16,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 21:46:16,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 21:46:16,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 21:46:16,223 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-09-26 21:46:16,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:46:16,223 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 21:46:16,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 21:46:16,224 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 21:46:16,224 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 21:46:16,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 21:46:16,821 WARN L178 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2018-09-26 21:46:16,935 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2018-09-26 21:46:16,938 INFO L422 ceAbstractionStarter]: At program point L33(lines 15 33) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~j~4 (+ ULTIMATE.start_main_~i~4 3)) (<= ULTIMATE.start_main_~i~4 5) (<= 8 ULTIMATE.start_main_~j~4)) (and (<= 10 ULTIMATE.start_main_~j~4) (<= ULTIMATE.start_main_~j~4 (+ ULTIMATE.start_main_~i~4 9)) (<= ULTIMATE.start_main_~i~4 1)) (and (<= ULTIMATE.start_main_~i~4 3) (<= ULTIMATE.start_main_~j~4 (+ ULTIMATE.start_main_~i~4 6)) (<= 9 ULTIMATE.start_main_~j~4)) (and (<= ULTIMATE.start_main_~j~4 6) (<= 6 ULTIMATE.start_main_~j~4) (<= (+ ULTIMATE.start_main_~j~4 3) ULTIMATE.start_main_~i~4)) (and (<= 7 ULTIMATE.start_main_~j~4) (<= ULTIMATE.start_main_~i~4 7) (<= ULTIMATE.start_main_~j~4 ULTIMATE.start_main_~i~4))) [2018-09-26 21:46:16,938 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 36) no Hoare annotation was computed. [2018-09-26 21:46:16,939 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 36) no Hoare annotation was computed. [2018-09-26 21:46:16,939 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 36) no Hoare annotation was computed. [2018-09-26 21:46:16,939 INFO L422 ceAbstractionStarter]: At program point L28(lines 28 34) the Hoare annotation is: false [2018-09-26 21:46:16,939 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 35) no Hoare annotation was computed. [2018-09-26 21:46:16,939 INFO L422 ceAbstractionStarter]: At program point L18(lines 18 29) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~j~4 (+ ULTIMATE.start_main_~i~4 3)) (<= ULTIMATE.start_main_~i~4 5) (<= 8 ULTIMATE.start_main_~j~4)) (and (<= 10 ULTIMATE.start_main_~j~4) (<= ULTIMATE.start_main_~j~4 (+ ULTIMATE.start_main_~i~4 9)) (<= ULTIMATE.start_main_~i~4 1)) (and (<= ULTIMATE.start_main_~i~4 3) (<= ULTIMATE.start_main_~j~4 (+ ULTIMATE.start_main_~i~4 6)) (<= 9 ULTIMATE.start_main_~j~4)) (and (<= ULTIMATE.start_main_~j~4 6) (<= 6 ULTIMATE.start_main_~j~4) (<= (+ ULTIMATE.start_main_~j~4 3) ULTIMATE.start_main_~i~4)) (and (<= 7 ULTIMATE.start_main_~j~4) (<= ULTIMATE.start_main_~i~4 7) (<= ULTIMATE.start_main_~j~4 ULTIMATE.start_main_~i~4))) [2018-09-26 21:46:16,951 INFO L202 PluginConnector]: Adding new model cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:46:16 BoogieIcfgContainer [2018-09-26 21:46:16,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 21:46:16,952 INFO L168 Benchmark]: Toolchain (without parser) took 4708.36 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: 214.1 MB). Peak memory consumption was 214.1 MB. Max. memory is 7.1 GB. [2018-09-26 21:46:16,954 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 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 21:46:16,955 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.60 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 21:46:16,956 INFO L168 Benchmark]: Boogie Preprocessor took 22.93 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 21:46:16,956 INFO L168 Benchmark]: RCFGBuilder took 316.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 21:46:16,957 INFO L168 Benchmark]: TraceAbstraction took 4320.08 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: 193.0 MB). Peak memory consumption was 193.0 MB. Max. memory is 7.1 GB. [2018-09-26 21:46:16,963 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 0.25 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 42.60 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 22.93 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 316.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4320.08 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: 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: - PositiveResult [Line: 35]: 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: 15]: Loop Invariant Derived loop invariant: (((((main_~j~4 <= main_~i~4 + 3 && main_~i~4 <= 5) && 8 <= main_~j~4) || ((10 <= main_~j~4 && main_~j~4 <= main_~i~4 + 9) && main_~i~4 <= 1)) || ((main_~i~4 <= 3 && main_~j~4 <= main_~i~4 + 6) && 9 <= main_~j~4)) || ((main_~j~4 <= 6 && 6 <= main_~j~4) && main_~j~4 + 3 <= main_~i~4)) || ((7 <= main_~j~4 && main_~i~4 <= 7) && main_~j~4 <= main_~i~4) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (((((main_~j~4 <= main_~i~4 + 3 && main_~i~4 <= 5) && 8 <= main_~j~4) || ((10 <= main_~j~4 && main_~j~4 <= main_~i~4 + 9) && main_~i~4 <= 1)) || ((main_~i~4 <= 3 && main_~j~4 <= main_~i~4 + 6) && 9 <= main_~j~4)) || ((main_~j~4 <= 6 && 6 <= main_~j~4) && main_~j~4 + 3 <= main_~i~4)) || ((7 <= main_~j~4 && main_~i~4 <= 7) && main_~j~4 <= main_~i~4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 4.2s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 0 SDslu, 68 SDs, 0 SdLazy, 86 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=5, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 13 NumberOfFragments, 119 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 48 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 4154 SizeOfPredicates, 9 NumberOfNonLiveVariables, 120 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 30/110 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/cggmp2005.c.i_3.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_21-46-16-979.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005.c.i_3.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_21-46-16-979.csv Received shutdown request...