java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-4eac566 [2018-09-23 19:37:41,190 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-23 19:37:41,192 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-23 19:37:41,203 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-23 19:37:41,203 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-23 19:37:41,204 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-23 19:37:41,206 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-23 19:37:41,213 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-23 19:37:41,215 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-23 19:37:41,216 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-23 19:37:41,217 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-23 19:37:41,217 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-23 19:37:41,218 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-23 19:37:41,219 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-23 19:37:41,220 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-23 19:37:41,221 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-23 19:37:41,222 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-23 19:37:41,224 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-23 19:37:41,225 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-23 19:37:41,227 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-23 19:37:41,228 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-23 19:37:41,229 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-23 19:37:41,232 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-23 19:37:41,232 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-23 19:37:41,232 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-23 19:37:41,233 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-23 19:37:41,234 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-23 19:37:41,235 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-23 19:37:41,235 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-23 19:37:41,237 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-23 19:37:41,237 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-23 19:37:41,237 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-23 19:37:41,238 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-23 19:37:41,238 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-23 19:37:41,239 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-23 19:37:41,239 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-23 19:37:41,240 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-23 19:37:41,254 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-23 19:37:41,255 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-23 19:37:41,256 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-23 19:37:41,256 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-23 19:37:41,256 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-23 19:37:41,257 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-23 19:37:41,257 INFO L133 SettingsManager]: * Use SBE=true [2018-09-23 19:37:41,257 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-23 19:37:41,257 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-23 19:37:41,257 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-23 19:37:41,258 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-23 19:37:41,258 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-23 19:37:41,258 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-23 19:37:41,258 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-23 19:37:41,258 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-23 19:37:41,259 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-23 19:37:41,259 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-23 19:37:41,259 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-23 19:37:41,259 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-23 19:37:41,259 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-23 19:37:41,260 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-23 19:37:41,260 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-23 19:37:41,260 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-23 19:37:41,260 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-23 19:37:41,260 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-23 19:37:41,260 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-23 19:37:41,261 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-23 19:37:41,261 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-23 19:37:41,261 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-23 19:37:41,261 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-23 19:37:41,326 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-23 19:37:41,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-23 19:37:41,344 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-23 19:37:41,346 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-23 19:37:41,346 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-23 19:37:41,349 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005.c.i_3.bpl [2018-09-23 19:37:41,349 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005.c.i_3.bpl' [2018-09-23 19:37:41,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-23 19:37:41,410 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-23 19:37:41,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-23 19:37:41,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-23 19:37:41,411 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-23 19:37:41,432 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 23.09 07:37:41" (1/1) ... [2018-09-23 19:37:41,444 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 23.09 07:37:41" (1/1) ... [2018-09-23 19:37:41,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-23 19:37:41,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-23 19:37:41,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-23 19:37:41,452 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-23 19:37:41,464 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 23.09 07:37:41" (1/1) ... [2018-09-23 19:37:41,465 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 23.09 07:37:41" (1/1) ... [2018-09-23 19:37:41,465 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 23.09 07:37:41" (1/1) ... [2018-09-23 19:37:41,466 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 23.09 07:37:41" (1/1) ... [2018-09-23 19:37:41,468 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 23.09 07:37:41" (1/1) ... [2018-09-23 19:37:41,470 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 23.09 07:37:41" (1/1) ... [2018-09-23 19:37:41,471 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 23.09 07:37:41" (1/1) ... [2018-09-23 19:37:41,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-23 19:37:41,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-23 19:37:41,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-23 19:37:41,474 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-23 19:37:41,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 07:37:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-23 19:37:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-23 19:37:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-23 19:37:41,794 INFO L354 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-23 19:37:41,795 INFO L202 PluginConnector]: Adding new model cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 07:37:41 BoogieIcfgContainer [2018-09-23 19:37:41,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-23 19:37:41,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-23 19:37:41,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-23 19:37:41,807 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-23 19:37:41,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 07:37:41" (1/2) ... [2018-09-23 19:37:41,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791924b3 and model type cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 07:37:41, skipping insertion in model container [2018-09-23 19:37:41,809 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 23.09 07:37:41" (2/2) ... [2018-09-23 19:37:41,811 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005.c.i_3.bpl [2018-09-23 19:37:41,822 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-23 19:37:41,830 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-23 19:37:41,879 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-23 19:37:41,880 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-23 19:37:41,880 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-23 19:37:41,880 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-23 19:37:41,880 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-23 19:37:41,881 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-23 19:37:41,881 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-23 19:37:41,881 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-23 19:37:41,881 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-23 19:37:41,894 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-09-23 19:37:41,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-23 19:37:41,900 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:37:41,901 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-23 19:37:41,903 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:37:41,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:37:41,909 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-09-23 19:37:41,912 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:37:41,912 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:37:41,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:37:41,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 19:37:41,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:37:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:37:42,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:37:42,066 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 19:37:42,066 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 19:37:42,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 19:37:42,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 19:37:42,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 19:37:42,084 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-09-23 19:37:42,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:37:42,144 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-09-23 19:37:42,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 19:37:42,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-23 19:37:42,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:37:42,160 INFO L225 Difference]: With dead ends: 11 [2018-09-23 19:37:42,160 INFO L226 Difference]: Without dead ends: 7 [2018-09-23 19:37:42,164 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 19:37:42,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-23 19:37:42,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-23 19:37:42,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-23 19:37:42,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-23 19:37:42,204 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-23 19:37:42,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:37:42,205 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-23 19:37:42,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 19:37:42,205 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-23 19:37:42,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-23 19:37:42,206 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:37:42,206 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-23 19:37:42,206 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:37:42,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:37:42,207 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-09-23 19:37:42,207 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:37:42,207 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:37:42,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:37:42,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 19:37:42,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:37:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:37:42,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:37:42,358 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:37:42,359 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) [2018-09-23 19:37:42,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-23 19:37:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:37:42,403 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:37:42,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:37:42,548 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:37:42,549 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2018-09-23 19:37:42,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-23 19:37:42,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-23 19:37:42,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-09-23 19:37:42,550 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-09-23 19:37:42,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:37:42,596 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-09-23 19:37:42,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-23 19:37:42,598 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-09-23 19:37:42,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:37:42,599 INFO L225 Difference]: With dead ends: 11 [2018-09-23 19:37:42,599 INFO L226 Difference]: Without dead ends: 9 [2018-09-23 19:37:42,601 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-09-23 19:37:42,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-09-23 19:37:42,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-09-23 19:37:42,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-23 19:37:42,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-09-23 19:37:42,608 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-09-23 19:37:42,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:37:42,608 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-09-23 19:37:42,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-23 19:37:42,608 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-09-23 19:37:42,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-23 19:37:42,612 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:37:42,612 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-09-23 19:37:42,612 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:37:42,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:37:42,613 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-09-23 19:37:42,613 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:37:42,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:37:42,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:37:42,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 19:37:42,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:37:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:37:42,746 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:37:42,747 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:37:42,747 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 [2018-09-23 19:37:42,761 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-23 19:37:42,780 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-23 19:37:42,781 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:37:42,782 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:37:42,917 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:37:42,937 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:37:42,938 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-09-23 19:37:42,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-23 19:37:42,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-23 19:37:42,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-09-23 19:37:42,939 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 8 states. [2018-09-23 19:37:43,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:37:43,008 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-09-23 19:37:43,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-23 19:37:43,009 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-09-23 19:37:43,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:37:43,009 INFO L225 Difference]: With dead ends: 13 [2018-09-23 19:37:43,009 INFO L226 Difference]: Without dead ends: 11 [2018-09-23 19:37:43,010 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-09-23 19:37:43,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-09-23 19:37:43,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-09-23 19:37:43,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-09-23 19:37:43,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-09-23 19:37:43,014 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-09-23 19:37:43,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:37:43,014 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-09-23 19:37:43,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-23 19:37:43,015 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-09-23 19:37:43,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-23 19:37:43,015 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:37:43,015 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-09-23 19:37:43,016 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:37:43,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:37:43,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1946815861, now seen corresponding path program 3 times [2018-09-23 19:37:43,016 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:37:43,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:37:43,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:37:43,018 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:37:43,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:37:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:37:43,279 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:37:43,279 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:37:43,279 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 [2018-09-23 19:37:43,290 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-23 19:37:43,312 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-09-23 19:37:43,312 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:37:43,314 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:37:43,426 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:37:43,446 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:37:43,447 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2018-09-23 19:37:43,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-23 19:37:43,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-23 19:37:43,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-09-23 19:37:43,448 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-09-23 19:37:43,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:37:43,494 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-09-23 19:37:43,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-23 19:37:43,494 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2018-09-23 19:37:43,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:37:43,495 INFO L225 Difference]: With dead ends: 15 [2018-09-23 19:37:43,495 INFO L226 Difference]: Without dead ends: 13 [2018-09-23 19:37:43,496 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-09-23 19:37:43,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-09-23 19:37:43,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-09-23 19:37:43,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-23 19:37:43,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-09-23 19:37:43,501 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-09-23 19:37:43,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:37:43,501 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-09-23 19:37:43,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-23 19:37:43,502 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-09-23 19:37:43,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-23 19:37:43,502 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:37:43,502 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1] [2018-09-23 19:37:43,503 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:37:43,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:37:43,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1715646545, now seen corresponding path program 4 times [2018-09-23 19:37:43,503 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:37:43,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:37:43,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:37:43,505 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:37:43,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:37:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:37:43,774 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:37:43,774 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 19:37:43,775 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 [2018-09-23 19:37:43,787 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-23 19:37:43,795 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-23 19:37:43,795 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 19:37:43,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 19:37:43,808 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:37:43,828 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 19:37:43,828 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-09-23 19:37:43,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-23 19:37:43,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-23 19:37:43,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-23 19:37:43,830 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 7 states. [2018-09-23 19:37:43,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:37:43,897 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-09-23 19:37:43,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-23 19:37:43,899 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-09-23 19:37:43,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:37:43,900 INFO L225 Difference]: With dead ends: 17 [2018-09-23 19:37:43,900 INFO L226 Difference]: Without dead ends: 15 [2018-09-23 19:37:43,901 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-23 19:37:43,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-23 19:37:43,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-09-23 19:37:43,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-23 19:37:43,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-23 19:37:43,906 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-09-23 19:37:43,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:37:43,906 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-23 19:37:43,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-23 19:37:43,906 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-23 19:37:43,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-23 19:37:43,907 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 19:37:43,907 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1] [2018-09-23 19:37:43,908 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 19:37:43,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 19:37:43,908 INFO L82 PathProgramCache]: Analyzing trace with hash 531164009, now seen corresponding path program 5 times [2018-09-23 19:37:43,908 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 19:37:43,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 19:37:43,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:37:43,910 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 19:37:43,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 19:37:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 19:37:44,034 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 19:37:44,035 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 19:37:44,035 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-23 19:37:44,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-23 19:37:44,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-23 19:37:44,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-09-23 19:37:44,036 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 7 states. [2018-09-23 19:37:44,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 19:37:44,065 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-09-23 19:37:44,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-23 19:37:44,065 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-09-23 19:37:44,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 19:37:44,066 INFO L225 Difference]: With dead ends: 15 [2018-09-23 19:37:44,066 INFO L226 Difference]: Without dead ends: 0 [2018-09-23 19:37:44,066 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-09-23 19:37:44,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-23 19:37:44,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-23 19:37:44,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-23 19:37:44,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-23 19:37:44,067 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-09-23 19:37:44,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 19:37:44,067 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-23 19:37:44,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-23 19:37:44,068 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-23 19:37:44,068 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-23 19:37:44,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-23 19:37:44,570 WARN L178 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2018-09-23 19:37:44,688 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2018-09-23 19:37:44,692 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_~j~4 6) (<= 6 ULTIMATE.start_main_~j~4) (<= (+ ULTIMATE.start_main_~j~4 3) ULTIMATE.start_main_~i~4)) (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 (<= 7 ULTIMATE.start_main_~j~4) (<= ULTIMATE.start_main_~i~4 7) (<= ULTIMATE.start_main_~j~4 ULTIMATE.start_main_~i~4))) [2018-09-23 19:37:44,692 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 36) no Hoare annotation was computed. [2018-09-23 19:37:44,692 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 36) no Hoare annotation was computed. [2018-09-23 19:37:44,693 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 36) no Hoare annotation was computed. [2018-09-23 19:37:44,693 INFO L422 ceAbstractionStarter]: At program point L28(lines 28 34) the Hoare annotation is: false [2018-09-23 19:37:44,693 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_~j~4 6) (<= 6 ULTIMATE.start_main_~j~4) (<= (+ ULTIMATE.start_main_~j~4 3) ULTIMATE.start_main_~i~4)) (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 (<= 7 ULTIMATE.start_main_~j~4) (<= ULTIMATE.start_main_~i~4 7) (<= ULTIMATE.start_main_~j~4 ULTIMATE.start_main_~i~4))) [2018-09-23 19:37:44,693 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 35) no Hoare annotation was computed. [2018-09-23 19:37:44,707 INFO L202 PluginConnector]: Adding new model cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 07:37:44 BoogieIcfgContainer [2018-09-23 19:37:44,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-23 19:37:44,708 INFO L168 Benchmark]: Toolchain (without parser) took 3300.91 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: 171.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 7.1 GB. [2018-09-23 19:37:44,709 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. [2018-09-23 19:37:44,710 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-23 19:37:44,710 INFO L168 Benchmark]: Boogie Preprocessor took 20.63 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-23 19:37:44,711 INFO L168 Benchmark]: RCFGBuilder took 322.33 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. [2018-09-23 19:37:44,712 INFO L168 Benchmark]: TraceAbstraction took 2904.60 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: 150.7 MB). Peak memory consumption was 150.7 MB. Max. memory is 7.1 GB. [2018-09-23 19:37:44,716 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 41.09 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 20.63 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 322.33 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 2904.60 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: 150.7 MB). Peak memory consumption was 150.7 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_~j~4 <= 6 && 6 <= main_~j~4) && main_~j~4 + 3 <= main_~i~4)) || ((main_~i~4 <= 3 && main_~j~4 <= main_~i~4 + 6) && 9 <= main_~j~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_~j~4 <= 6 && 6 <= main_~j~4) && main_~j~4 + 3 <= main_~i~4)) || ((main_~i~4 <= 3 && main_~j~4 <= main_~i~4 + 6) && 9 <= main_~j~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, 2.8s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 0 SDslu, 61 SDs, 0 SdLazy, 79 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s 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, 34 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 3846 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.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-23_19-37-44-731.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005.c.i_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-23_19-37-44-731.csv Received shutdown request...