java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/HOLA/42.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:44:02,360 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:44:02,362 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:44:02,373 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:44:02,373 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:44:02,374 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:44:02,375 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:44:02,377 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:44:02,379 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:44:02,380 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:44:02,380 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:44:02,381 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:44:02,382 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:44:02,383 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:44:02,384 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:44:02,385 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:44:02,387 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:44:02,389 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:44:02,391 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:44:02,392 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:44:02,393 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:44:02,396 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:44:02,396 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:44:02,396 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:44:02,397 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:44:02,398 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:44:02,399 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:44:02,400 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:44:02,401 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:44:02,401 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:44:02,402 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:44:02,403 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:44:02,403 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:44:02,404 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:44:02,405 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:44:02,405 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:44:02,418 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:44:02,419 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:44:02,419 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:44:02,420 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:44:02,421 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:44:02,421 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:44:02,421 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:44:02,422 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:44:02,422 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:44:02,422 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:44:02,422 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:44:02,423 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:44:02,423 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:44:02,423 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:44:02,424 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:44:02,424 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:44:02,424 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:44:02,424 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:44:02,425 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:44:02,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:44:02,425 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:44:02,427 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:44:02,427 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:44:02,475 INFO ]: Repository-Root is: /tmp [2018-06-24 20:44:02,492 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:44:02,499 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:44:02,500 INFO ]: Initializing SmtParser... [2018-06-24 20:44:02,500 INFO ]: SmtParser initialized [2018-06-24 20:44:02,501 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/42.c.smt2 [2018-06-24 20:44:02,502 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-24 20:44:02,590 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/42.c.smt2 unknown [2018-06-24 20:44:03,150 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/42.c.smt2 [2018-06-24 20:44:03,155 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:44:03,170 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:44:03,170 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:44:03,170 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:44:03,170 INFO ]: ChcToBoogie initialized [2018-06-24 20:44:03,173 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:44:03" (1/1) ... [2018-06-24 20:44:03,271 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:44:03 Unit [2018-06-24 20:44:03,271 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:44:03,272 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:44:03,272 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:44:03,272 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:44:03,292 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:44:03" (1/1) ... [2018-06-24 20:44:03,293 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:44:03" (1/1) ... [2018-06-24 20:44:03,306 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:44:03" (1/1) ... [2018-06-24 20:44:03,306 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:44:03" (1/1) ... [2018-06-24 20:44:03,325 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:44:03" (1/1) ... [2018-06-24 20:44:03,331 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:44:03" (1/1) ... [2018-06-24 20:44:03,340 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:44:03" (1/1) ... [2018-06-24 20:44:03,346 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:44:03,347 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:44:03,347 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:44:03,347 INFO ]: RCFGBuilder initialized [2018-06-24 20:44:03,350 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:44:03" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-24 20:44:03,359 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:44:03,359 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:44:03,359 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:44:03,359 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:44:03,359 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:44:03,359 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:44:04,114 INFO ]: Using library mode [2018-06-24 20:44:04,115 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:44:04 BoogieIcfgContainer [2018-06-24 20:44:04,115 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:44:04,115 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:44:04,115 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:44:04,116 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:44:04,118 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:44:04" (1/1) ... [2018-06-24 20:44:04,142 INFO ]: Initial Icfg 48 locations, 58 edges [2018-06-24 20:44:04,143 INFO ]: Using Remove infeasible edges [2018-06-24 20:44:04,143 INFO ]: Using Maximize final states [2018-06-24 20:44:04,144 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:44:04,144 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:44:04,147 INFO ]: Using Remove sink states [2018-06-24 20:44:04,148 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:44:04,148 INFO ]: Using Use SBE [2018-06-24 20:44:04,162 INFO ]: SBE split 0 edges [2018-06-24 20:44:04,167 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-24 20:44:04,169 INFO ]: 0 new accepting states [2018-06-24 20:44:06,056 INFO ]: Removed 137 edges and 38 locations by large block encoding [2018-06-24 20:44:06,057 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:44:06,059 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:44:06,059 INFO ]: 0 new accepting states [2018-06-24 20:44:06,059 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:44:06,059 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:44:06,059 INFO ]: Encoded RCFG 8 locations, 20 edges [2018-06-24 20:44:06,060 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:44:06 BasicIcfg [2018-06-24 20:44:06,060 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:44:06,061 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:44:06,061 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:44:06,064 INFO ]: TraceAbstraction initialized [2018-06-24 20:44:06,064 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:44:03" (1/4) ... [2018-06-24 20:44:06,065 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a81123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:44:06, skipping insertion in model container [2018-06-24 20:44:06,065 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:44:03" (2/4) ... [2018-06-24 20:44:06,066 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a81123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:44:06, skipping insertion in model container [2018-06-24 20:44:06,066 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:44:04" (3/4) ... [2018-06-24 20:44:06,066 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a81123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:44:06, skipping insertion in model container [2018-06-24 20:44:06,066 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:44:06" (4/4) ... [2018-06-24 20:44:06,068 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:44:06,078 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:44:06,089 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:44:06,132 INFO ]: Using default assertion order modulation [2018-06-24 20:44:06,132 INFO ]: Interprodecural is true [2018-06-24 20:44:06,132 INFO ]: Hoare is false [2018-06-24 20:44:06,132 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:44:06,132 INFO ]: Backedges is TWOTRACK [2018-06-24 20:44:06,132 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:44:06,132 INFO ]: Difference is false [2018-06-24 20:44:06,132 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:44:06,132 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:44:06,144 INFO ]: Start isEmpty. Operand 8 states. [2018-06-24 20:44:06,154 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:44:06,154 INFO ]: Found error trace [2018-06-24 20:44:06,155 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:44:06,155 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:44:06,160 INFO ]: Analyzing trace with hash 41531436, now seen corresponding path program 1 times [2018-06-24 20:44:06,162 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:44:06,163 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:44:06,208 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:06,209 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:44:06,209 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:06,323 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:44:06,474 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:44:06,477 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:44:06,477 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:44:06,479 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:44:06,494 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:44:06,494 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:44:06,497 INFO ]: Start difference. First operand 8 states. Second operand 3 states. [2018-06-24 20:44:06,648 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:44:06,649 INFO ]: Finished difference Result 12 states and 31 transitions. [2018-06-24 20:44:06,649 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:44:06,650 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:44:06,650 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:44:06,663 INFO ]: With dead ends: 12 [2018-06-24 20:44:06,663 INFO ]: Without dead ends: 12 [2018-06-24 20:44:06,665 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:44:06,679 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-24 20:44:06,697 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 9. [2018-06-24 20:44:06,699 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 20:44:06,699 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 25 transitions. [2018-06-24 20:44:06,701 INFO ]: Start accepts. Automaton has 9 states and 25 transitions. Word has length 5 [2018-06-24 20:44:06,702 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:44:06,702 INFO ]: Abstraction has 9 states and 25 transitions. [2018-06-24 20:44:06,702 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:44:06,702 INFO ]: Start isEmpty. Operand 9 states and 25 transitions. [2018-06-24 20:44:06,702 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:44:06,702 INFO ]: Found error trace [2018-06-24 20:44:06,702 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:44:06,702 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:44:06,702 INFO ]: Analyzing trace with hash 41532397, now seen corresponding path program 1 times [2018-06-24 20:44:06,702 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:44:06,702 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:44:06,703 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:06,703 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:44:06,703 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:06,732 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:44:06,819 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:44:06,819 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:44:06,819 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:44:06,821 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:44:06,821 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:44:06,821 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:44:06,821 INFO ]: Start difference. First operand 9 states and 25 transitions. Second operand 3 states. [2018-06-24 20:44:07,053 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:44:07,053 INFO ]: Finished difference Result 13 states and 35 transitions. [2018-06-24 20:44:07,054 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:44:07,054 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:44:07,054 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:44:07,054 INFO ]: With dead ends: 13 [2018-06-24 20:44:07,055 INFO ]: Without dead ends: 13 [2018-06-24 20:44:07,055 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:44:07,055 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-24 20:44:07,057 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 10. [2018-06-24 20:44:07,057 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-24 20:44:07,058 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 29 transitions. [2018-06-24 20:44:07,058 INFO ]: Start accepts. Automaton has 10 states and 29 transitions. Word has length 5 [2018-06-24 20:44:07,058 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:44:07,058 INFO ]: Abstraction has 10 states and 29 transitions. [2018-06-24 20:44:07,058 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:44:07,058 INFO ]: Start isEmpty. Operand 10 states and 29 transitions. [2018-06-24 20:44:07,058 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:44:07,058 INFO ]: Found error trace [2018-06-24 20:44:07,058 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:44:07,058 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:44:07,059 INFO ]: Analyzing trace with hash 41533358, now seen corresponding path program 1 times [2018-06-24 20:44:07,059 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:44:07,059 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:44:07,059 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:07,059 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:44:07,060 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:07,081 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:44:07,164 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:44:07,164 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:44:07,164 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:44:07,164 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:44:07,164 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:44:07,164 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:44:07,164 INFO ]: Start difference. First operand 10 states and 29 transitions. Second operand 3 states. [2018-06-24 20:44:07,340 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:44:07,341 INFO ]: Finished difference Result 13 states and 32 transitions. [2018-06-24 20:44:07,341 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:44:07,341 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:44:07,341 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:44:07,341 INFO ]: With dead ends: 13 [2018-06-24 20:44:07,341 INFO ]: Without dead ends: 13 [2018-06-24 20:44:07,342 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:44:07,342 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-24 20:44:07,343 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 9. [2018-06-24 20:44:07,343 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 20:44:07,344 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 23 transitions. [2018-06-24 20:44:07,344 INFO ]: Start accepts. Automaton has 9 states and 23 transitions. Word has length 5 [2018-06-24 20:44:07,344 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:44:07,344 INFO ]: Abstraction has 9 states and 23 transitions. [2018-06-24 20:44:07,344 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:44:07,344 INFO ]: Start isEmpty. Operand 9 states and 23 transitions. [2018-06-24 20:44:07,344 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:44:07,344 INFO ]: Found error trace [2018-06-24 20:44:07,344 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:44:07,344 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:44:07,344 INFO ]: Analyzing trace with hash 41650600, now seen corresponding path program 1 times [2018-06-24 20:44:07,344 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:44:07,344 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:44:07,345 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:07,345 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:44:07,345 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:07,360 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:44:07,485 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:44:07,485 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:44:07,485 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:44:07,485 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:44:07,485 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:44:07,485 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:44:07,486 INFO ]: Start difference. First operand 9 states and 23 transitions. Second operand 3 states. [2018-06-24 20:44:07,539 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:44:07,539 INFO ]: Finished difference Result 13 states and 34 transitions. [2018-06-24 20:44:07,539 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:44:07,539 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:44:07,539 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:44:07,540 INFO ]: With dead ends: 13 [2018-06-24 20:44:07,540 INFO ]: Without dead ends: 13 [2018-06-24 20:44:07,540 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:44:07,540 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-24 20:44:07,542 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 10. [2018-06-24 20:44:07,542 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-24 20:44:07,543 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 28 transitions. [2018-06-24 20:44:07,543 INFO ]: Start accepts. Automaton has 10 states and 28 transitions. Word has length 5 [2018-06-24 20:44:07,543 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:44:07,543 INFO ]: Abstraction has 10 states and 28 transitions. [2018-06-24 20:44:07,543 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:44:07,543 INFO ]: Start isEmpty. Operand 10 states and 28 transitions. [2018-06-24 20:44:07,543 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:44:07,543 INFO ]: Found error trace [2018-06-24 20:44:07,543 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:44:07,543 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:44:07,543 INFO ]: Analyzing trace with hash 41651561, now seen corresponding path program 1 times [2018-06-24 20:44:07,543 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:44:07,543 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:44:07,544 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:07,544 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:44:07,544 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:07,554 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:44:07,625 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:44:07,625 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:44:07,625 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:44:07,625 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:44:07,625 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:44:07,625 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:44:07,625 INFO ]: Start difference. First operand 10 states and 28 transitions. Second operand 3 states. [2018-06-24 20:44:07,712 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:44:07,712 INFO ]: Finished difference Result 13 states and 32 transitions. [2018-06-24 20:44:07,713 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:44:07,713 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:44:07,713 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:44:07,713 INFO ]: With dead ends: 13 [2018-06-24 20:44:07,713 INFO ]: Without dead ends: 13 [2018-06-24 20:44:07,713 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:44:07,713 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-24 20:44:07,715 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 9. [2018-06-24 20:44:07,715 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 20:44:07,715 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 23 transitions. [2018-06-24 20:44:07,715 INFO ]: Start accepts. Automaton has 9 states and 23 transitions. Word has length 5 [2018-06-24 20:44:07,716 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:44:07,716 INFO ]: Abstraction has 9 states and 23 transitions. [2018-06-24 20:44:07,716 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:44:07,716 INFO ]: Start isEmpty. Operand 9 states and 23 transitions. [2018-06-24 20:44:07,716 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-24 20:44:07,716 INFO ]: Found error trace [2018-06-24 20:44:07,716 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:44:07,716 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:44:07,716 INFO ]: Analyzing trace with hash -349494819, now seen corresponding path program 1 times [2018-06-24 20:44:07,716 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:44:07,716 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:44:07,717 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:07,717 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:44:07,717 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:07,731 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:44:07,771 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:44:07,772 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:44:07,772 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-24 20:44:07,772 INFO ]: Interpolant automaton has 4 states [2018-06-24 20:44:07,772 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-24 20:44:07,772 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-24 20:44:07,772 INFO ]: Start difference. First operand 9 states and 23 transitions. Second operand 4 states. [2018-06-24 20:44:07,841 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:44:07,841 INFO ]: Finished difference Result 17 states and 40 transitions. [2018-06-24 20:44:07,842 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-24 20:44:07,842 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-24 20:44:07,842 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:44:07,842 INFO ]: With dead ends: 17 [2018-06-24 20:44:07,842 INFO ]: Without dead ends: 17 [2018-06-24 20:44:07,842 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:44:07,842 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-24 20:44:07,845 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 11. [2018-06-24 20:44:07,845 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-24 20:44:07,845 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 27 transitions. [2018-06-24 20:44:07,845 INFO ]: Start accepts. Automaton has 11 states and 27 transitions. Word has length 8 [2018-06-24 20:44:07,845 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:44:07,845 INFO ]: Abstraction has 11 states and 27 transitions. [2018-06-24 20:44:07,845 INFO ]: Interpolant automaton has 4 states. [2018-06-24 20:44:07,845 INFO ]: Start isEmpty. Operand 11 states and 27 transitions. [2018-06-24 20:44:07,846 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-24 20:44:07,846 INFO ]: Found error trace [2018-06-24 20:44:07,846 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:44:07,846 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:44:07,846 INFO ]: Analyzing trace with hash -348571298, now seen corresponding path program 1 times [2018-06-24 20:44:07,846 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:44:07,846 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:44:07,847 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:07,847 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:44:07,847 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:44:07,864 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:44:07,930 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:44:07,930 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:44:07,930 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-24 20:44:07,930 INFO ]: Interpolant automaton has 5 states [2018-06-24 20:44:07,930 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 20:44:07,930 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:44:07,930 INFO ]: Start difference. First operand 11 states and 27 transitions. Second operand 5 states. [2018-06-24 20:44:08,038 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:44:08,038 INFO ]: Finished difference Result 7 states and 17 transitions. [2018-06-24 20:44:08,039 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-24 20:44:08,040 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-24 20:44:08,040 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:44:08,040 INFO ]: With dead ends: 7 [2018-06-24 20:44:08,040 INFO ]: Without dead ends: 0 [2018-06-24 20:44:08,040 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:44:08,040 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 20:44:08,040 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 20:44:08,040 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 20:44:08,040 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 20:44:08,040 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-06-24 20:44:08,040 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:44:08,040 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 20:44:08,040 INFO ]: Interpolant automaton has 5 states. [2018-06-24 20:44:08,040 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 20:44:08,040 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 20:44:08,042 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:44:08,044 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:44:08 BasicIcfg [2018-06-24 20:44:08,044 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:44:08,045 INFO ]: Toolchain (without parser) took 4889.79 ms. Allocated memory was 308.8 MB in the beginning and 392.7 MB in the end (delta: 83.9 MB). Free memory was 240.2 MB in the beginning and 356.5 MB in the end (delta: -116.3 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:44:08,046 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:44:08,047 INFO ]: ChcToBoogie took 101.18 ms. Allocated memory is still 308.8 MB. Free memory was 240.2 MB in the beginning and 237.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:44:08,047 INFO ]: Boogie Preprocessor took 74.72 ms. Allocated memory is still 308.8 MB. Free memory was 237.2 MB in the beginning and 235.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:44:08,047 INFO ]: RCFGBuilder took 768.02 ms. Allocated memory was 308.8 MB in the beginning and 325.1 MB in the end (delta: 16.3 MB). Free memory was 235.2 MB in the beginning and 294.0 MB in the end (delta: -58.8 MB). Peak memory consumption was 53.2 MB. Max. memory is 3.6 GB. [2018-06-24 20:44:08,048 INFO ]: BlockEncodingV2 took 1944.50 ms. Allocated memory was 325.1 MB in the beginning and 357.0 MB in the end (delta: 32.0 MB). Free memory was 294.0 MB in the beginning and 277.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 118.9 MB. Max. memory is 3.6 GB. [2018-06-24 20:44:08,048 INFO ]: TraceAbstraction took 1983.08 ms. Allocated memory was 357.0 MB in the beginning and 392.7 MB in the end (delta: 35.7 MB). Free memory was 274.9 MB in the beginning and 356.5 MB in the end (delta: -81.6 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:44:08,061 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 48 locations, 58 edges - StatisticsResult: Encoded RCFG 8 locations, 20 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 101.18 ms. Allocated memory is still 308.8 MB. Free memory was 240.2 MB in the beginning and 237.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 74.72 ms. Allocated memory is still 308.8 MB. Free memory was 237.2 MB in the beginning and 235.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 768.02 ms. Allocated memory was 308.8 MB in the beginning and 325.1 MB in the end (delta: 16.3 MB). Free memory was 235.2 MB in the beginning and 294.0 MB in the end (delta: -58.8 MB). Peak memory consumption was 53.2 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 1944.50 ms. Allocated memory was 325.1 MB in the beginning and 357.0 MB in the end (delta: 32.0 MB). Free memory was 294.0 MB in the beginning and 277.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 118.9 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1983.08 ms. Allocated memory was 357.0 MB in the beginning and 392.7 MB in the end (delta: 35.7 MB). Free memory was 274.9 MB in the beginning and 356.5 MB in the end (delta: -81.6 MB). There was no memory consumed. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 123 SDtfs, 54 SDslu, 67 SDs, 0 SdLazy, 105 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=6, 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, 7 MinimizatonAttempts, 23 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 2/2 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/42.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-44-08-079.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/42.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-44-08-079.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/42.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-44-08-079.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/42.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-44-08-079.csv Received shutdown request...