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/hopv/lia/mochi/a-max.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 18:15:33,219 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:15:33,221 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:15:33,232 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:15:33,233 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:15:33,234 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:15:33,235 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:15:33,239 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:15:33,242 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:15:33,243 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:15:33,244 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:15:33,244 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:15:33,245 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:15:33,247 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:15:33,248 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:15:33,249 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:15:33,250 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:15:33,251 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:15:33,262 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:15:33,263 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:15:33,264 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:15:33,265 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:15:33,270 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:15:33,270 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:15:33,270 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:15:33,271 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:15:33,272 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:15:33,272 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:15:33,273 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:15:33,274 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:15:33,274 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:15:33,275 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 18:15:33,275 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 18:15:33,275 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 18:15:33,281 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 18:15:33,282 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 18:15:33,282 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:15:33,301 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:15:33,301 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:15:33,302 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:15:33,302 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:15:33,303 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:15:33,303 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:15:33,303 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:15:33,303 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:15:33,303 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:15:33,304 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:15:33,304 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:15:33,304 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:15:33,304 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:15:33,304 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:15:33,305 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:15:33,305 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:15:33,305 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:15:33,305 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:15:33,305 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:15:33,306 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:15:33,307 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:15:33,309 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:15:33,309 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:15:33,361 INFO ]: Repository-Root is: /tmp [2018-06-26 18:15:33,377 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:15:33,383 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:15:33,385 INFO ]: Initializing SmtParser... [2018-06-26 18:15:33,385 INFO ]: SmtParser initialized [2018-06-26 18:15:33,386 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/a-max.smt2 [2018-06-26 18:15:33,387 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 [2018-06-26 18:15:33,469 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/a-max.smt2 unknown [2018-06-26 18:15:33,694 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/a-max.smt2 [2018-06-26 18:15:33,707 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:15:33,721 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:15:33,722 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:15:33,722 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:15:33,722 INFO ]: ChcToBoogie initialized [2018-06-26 18:15:33,725 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:15:33" (1/1) ... [2018-06-26 18:15:33,785 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:15:33 Unit [2018-06-26 18:15:33,785 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:15:33,786 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:15:33,786 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:15:33,786 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:15:33,803 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:15:33" (1/1) ... [2018-06-26 18:15:33,803 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:15:33" (1/1) ... [2018-06-26 18:15:33,811 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:15:33" (1/1) ... [2018-06-26 18:15:33,811 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:15:33" (1/1) ... [2018-06-26 18:15:33,823 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:15:33" (1/1) ... [2018-06-26 18:15:33,826 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:15:33" (1/1) ... [2018-06-26 18:15:33,827 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:15:33" (1/1) ... [2018-06-26 18:15:33,828 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:15:33,829 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:15:33,829 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:15:33,829 INFO ]: RCFGBuilder initialized [2018-06-26 18:15:33,830 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:15:33" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:15:33,845 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:15:33,845 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:15:33,845 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:15:33,845 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:15:33,845 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:15:33,845 INFO ]: Found implementation of procedure Ultimate.START [2018-06-26 18:15:34,223 INFO ]: Using library mode [2018-06-26 18:15:34,224 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:15:34 BoogieIcfgContainer [2018-06-26 18:15:34,224 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:15:34,224 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:15:34,224 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:15:34,225 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:15:34,226 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:15:34" (1/1) ... [2018-06-26 18:15:34,241 INFO ]: Initial Icfg 22 locations, 32 edges [2018-06-26 18:15:34,242 INFO ]: Using Remove infeasible edges [2018-06-26 18:15:34,242 INFO ]: Using Maximize final states [2018-06-26 18:15:34,243 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:15:34,243 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:15:34,245 INFO ]: Using Remove sink states [2018-06-26 18:15:34,246 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:15:34,246 INFO ]: Using Use SBE [2018-06-26 18:15:34,258 WARN ]: expecting exponential blowup for input size 6 [2018-06-26 18:15:34,265 INFO ]: SBE split 0 edges [2018-06-26 18:15:34,270 INFO ]: Removed 3 edges and 2 locations because of local infeasibility [2018-06-26 18:15:34,272 INFO ]: 0 new accepting states [2018-06-26 18:15:34,359 INFO ]: Removed 13 edges and 5 locations by large block encoding [2018-06-26 18:15:34,361 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:15:34,362 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:15:34,362 INFO ]: 0 new accepting states [2018-06-26 18:15:34,363 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:15:34,363 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:15:34,363 INFO ]: Encoded RCFG 15 locations, 24 edges [2018-06-26 18:15:34,363 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:15:34 BasicIcfg [2018-06-26 18:15:34,364 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:15:34,364 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:15:34,364 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:15:34,367 INFO ]: TraceAbstraction initialized [2018-06-26 18:15:34,367 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:15:33" (1/4) ... [2018-06-26 18:15:34,368 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f09fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:15:34, skipping insertion in model container [2018-06-26 18:15:34,368 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:15:33" (2/4) ... [2018-06-26 18:15:34,368 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f09fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:15:34, skipping insertion in model container [2018-06-26 18:15:34,369 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:15:34" (3/4) ... [2018-06-26 18:15:34,369 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f09fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:15:34, skipping insertion in model container [2018-06-26 18:15:34,369 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:15:34" (4/4) ... [2018-06-26 18:15:34,371 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:15:34,379 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:15:34,395 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:15:34,432 INFO ]: Using default assertion order modulation [2018-06-26 18:15:34,433 INFO ]: Interprodecural is true [2018-06-26 18:15:34,433 INFO ]: Hoare is false [2018-06-26 18:15:34,433 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:15:34,433 INFO ]: Backedges is TWOTRACK [2018-06-26 18:15:34,433 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:15:34,433 INFO ]: Difference is false [2018-06-26 18:15:34,433 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:15:34,433 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:15:34,448 INFO ]: Start isEmpty. Operand 15 states. [2018-06-26 18:15:34,459 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:15:34,459 INFO ]: Found error trace [2018-06-26 18:15:34,460 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:15:34,460 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:15:34,465 INFO ]: Analyzing trace with hash 38856106, now seen corresponding path program 1 times [2018-06-26 18:15:34,467 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:15:34,468 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:15:34,500 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:34,500 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:15:34,500 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:34,542 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:34,606 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:15:34,607 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:15:34,608 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:15:34,612 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:15:34,624 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:15:34,624 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:15:34,627 INFO ]: Start difference. First operand 15 states. Second operand 3 states. [2018-06-26 18:15:34,894 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:15:34,895 INFO ]: Finished difference Result 27 states and 44 transitions. [2018-06-26 18:15:34,896 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:15:34,897 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:15:34,898 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:15:34,911 INFO ]: With dead ends: 27 [2018-06-26 18:15:34,913 INFO ]: Without dead ends: 27 [2018-06-26 18:15:34,915 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 [2018-06-26 18:15:34,934 INFO ]: Start minimizeSevpa. Operand 27 states. [2018-06-26 18:15:34,958 INFO ]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-06-26 18:15:34,959 INFO ]: Start removeUnreachable. Operand 27 states. [2018-06-26 18:15:34,960 INFO ]: Finished removeUnreachable. Reduced from 27 states to 27 states and 44 transitions. [2018-06-26 18:15:34,961 INFO ]: Start accepts. Automaton has 27 states and 44 transitions. Word has length 5 [2018-06-26 18:15:34,961 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:15:34,961 INFO ]: Abstraction has 27 states and 44 transitions. [2018-06-26 18:15:34,961 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:15:34,962 INFO ]: Start isEmpty. Operand 27 states and 44 transitions. [2018-06-26 18:15:34,963 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:15:34,963 INFO ]: Found error trace [2018-06-26 18:15:34,963 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:15:34,963 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:15:34,964 INFO ]: Analyzing trace with hash 38914727, now seen corresponding path program 1 times [2018-06-26 18:15:34,964 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:15:34,964 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:15:34,965 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:34,965 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:15:34,965 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:34,973 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:34,991 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:15:34,991 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:15:34,991 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:15:34,992 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:15:34,992 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:15:34,992 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:15:34,993 INFO ]: Start difference. First operand 27 states and 44 transitions. Second operand 3 states. [2018-06-26 18:15:35,168 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:15:35,169 INFO ]: Finished difference Result 39 states and 65 transitions. [2018-06-26 18:15:35,170 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:15:35,170 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:15:35,170 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:15:35,171 INFO ]: With dead ends: 39 [2018-06-26 18:15:35,171 INFO ]: Without dead ends: 39 [2018-06-26 18:15:35,172 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 [2018-06-26 18:15:35,172 INFO ]: Start minimizeSevpa. Operand 39 states. [2018-06-26 18:15:35,184 INFO ]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-06-26 18:15:35,184 INFO ]: Start removeUnreachable. Operand 39 states. [2018-06-26 18:15:35,186 INFO ]: Finished removeUnreachable. Reduced from 39 states to 39 states and 65 transitions. [2018-06-26 18:15:35,187 INFO ]: Start accepts. Automaton has 39 states and 65 transitions. Word has length 5 [2018-06-26 18:15:35,187 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:15:35,187 INFO ]: Abstraction has 39 states and 65 transitions. [2018-06-26 18:15:35,187 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:15:35,187 INFO ]: Start isEmpty. Operand 39 states and 65 transitions. [2018-06-26 18:15:35,188 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:15:35,188 INFO ]: Found error trace [2018-06-26 18:15:35,189 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:15:35,189 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:15:35,189 INFO ]: Analyzing trace with hash 39004100, now seen corresponding path program 1 times [2018-06-26 18:15:35,189 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:15:35,189 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:15:35,189 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:35,189 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:15:35,189 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:35,209 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:35,285 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:15:35,285 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:15:35,285 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:15:35,285 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:15:35,286 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:15:35,286 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:15:35,286 INFO ]: Start difference. First operand 39 states and 65 transitions. Second operand 3 states. [2018-06-26 18:15:35,321 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:15:35,321 INFO ]: Finished difference Result 50 states and 95 transitions. [2018-06-26 18:15:35,321 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:15:35,321 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:15:35,321 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:15:35,325 INFO ]: With dead ends: 50 [2018-06-26 18:15:35,325 INFO ]: Without dead ends: 50 [2018-06-26 18:15:35,325 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 [2018-06-26 18:15:35,325 INFO ]: Start minimizeSevpa. Operand 50 states. [2018-06-26 18:15:35,336 INFO ]: Finished minimizeSevpa. Reduced states from 50 to 42. [2018-06-26 18:15:35,336 INFO ]: Start removeUnreachable. Operand 42 states. [2018-06-26 18:15:35,339 INFO ]: Finished removeUnreachable. Reduced from 42 states to 42 states and 71 transitions. [2018-06-26 18:15:35,339 INFO ]: Start accepts. Automaton has 42 states and 71 transitions. Word has length 5 [2018-06-26 18:15:35,339 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:15:35,339 INFO ]: Abstraction has 42 states and 71 transitions. [2018-06-26 18:15:35,339 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:15:35,339 INFO ]: Start isEmpty. Operand 42 states and 71 transitions. [2018-06-26 18:15:35,342 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-26 18:15:35,342 INFO ]: Found error trace [2018-06-26 18:15:35,342 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:15:35,342 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:15:35,342 INFO ]: Analyzing trace with hash 1214869851, now seen corresponding path program 1 times [2018-06-26 18:15:35,342 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:15:35,342 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:15:35,343 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:35,343 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:15:35,343 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:35,384 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:35,530 INFO ]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:15:35,530 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:15:35,530 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-26 18:15:35,537 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:15:35,583 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:35,592 INFO ]: Computing forward predicates... [2018-06-26 18:15:35,751 INFO ]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:15:35,786 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:15:35,786 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2018-06-26 18:15:35,787 INFO ]: Interpolant automaton has 9 states [2018-06-26 18:15:35,787 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-26 18:15:35,787 INFO ]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-06-26 18:15:35,787 INFO ]: Start difference. First operand 42 states and 71 transitions. Second operand 9 states. [2018-06-26 18:15:36,490 WARN ]: Spent 138.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2018-06-26 18:15:36,876 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:15:36,876 INFO ]: Finished difference Result 69 states and 113 transitions. [2018-06-26 18:15:36,878 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-26 18:15:36,878 INFO ]: Start accepts. Automaton has 9 states. Word has length 11 [2018-06-26 18:15:36,878 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:15:36,879 INFO ]: With dead ends: 69 [2018-06-26 18:15:36,879 INFO ]: Without dead ends: 48 [2018-06-26 18:15:36,880 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-06-26 18:15:36,880 INFO ]: Start minimizeSevpa. Operand 48 states. [2018-06-26 18:15:36,887 INFO ]: Finished minimizeSevpa. Reduced states from 48 to 42. [2018-06-26 18:15:36,887 INFO ]: Start removeUnreachable. Operand 42 states. [2018-06-26 18:15:36,889 INFO ]: Finished removeUnreachable. Reduced from 42 states to 42 states and 68 transitions. [2018-06-26 18:15:36,889 INFO ]: Start accepts. Automaton has 42 states and 68 transitions. Word has length 11 [2018-06-26 18:15:36,889 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:15:36,889 INFO ]: Abstraction has 42 states and 68 transitions. [2018-06-26 18:15:36,889 INFO ]: Interpolant automaton has 9 states. [2018-06-26 18:15:36,889 INFO ]: Start isEmpty. Operand 42 states and 68 transitions. [2018-06-26 18:15:36,890 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-26 18:15:36,890 INFO ]: Found error trace [2018-06-26 18:15:36,890 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:15:36,890 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:15:36,890 INFO ]: Analyzing trace with hash -222253068, now seen corresponding path program 1 times [2018-06-26 18:15:36,890 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:15:36,890 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:15:36,891 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:36,891 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:15:36,891 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:36,920 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:37,062 INFO ]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:15:37,063 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:15:37,063 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-26 18:15:37,070 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:15:37,109 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:37,113 INFO ]: Computing forward predicates... [2018-06-26 18:15:37,257 INFO ]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-26 18:15:37,276 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:15:37,276 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2018-06-26 18:15:37,277 INFO ]: Interpolant automaton has 12 states [2018-06-26 18:15:37,277 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-26 18:15:37,277 INFO ]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2018-06-26 18:15:37,277 INFO ]: Start difference. First operand 42 states and 68 transitions. Second operand 12 states. [2018-06-26 18:15:38,392 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:15:38,393 INFO ]: Finished difference Result 106 states and 231 transitions. [2018-06-26 18:15:38,393 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-26 18:15:38,393 INFO ]: Start accepts. Automaton has 12 states. Word has length 11 [2018-06-26 18:15:38,393 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:15:38,397 INFO ]: With dead ends: 106 [2018-06-26 18:15:38,397 INFO ]: Without dead ends: 90 [2018-06-26 18:15:38,397 INFO ]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2018-06-26 18:15:38,397 INFO ]: Start minimizeSevpa. Operand 90 states. [2018-06-26 18:15:38,416 INFO ]: Finished minimizeSevpa. Reduced states from 90 to 60. [2018-06-26 18:15:38,416 INFO ]: Start removeUnreachable. Operand 60 states. [2018-06-26 18:15:38,418 INFO ]: Finished removeUnreachable. Reduced from 60 states to 60 states and 113 transitions. [2018-06-26 18:15:38,418 INFO ]: Start accepts. Automaton has 60 states and 113 transitions. Word has length 11 [2018-06-26 18:15:38,418 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:15:38,418 INFO ]: Abstraction has 60 states and 113 transitions. [2018-06-26 18:15:38,418 INFO ]: Interpolant automaton has 12 states. [2018-06-26 18:15:38,418 INFO ]: Start isEmpty. Operand 60 states and 113 transitions. [2018-06-26 18:15:38,420 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-26 18:15:38,420 INFO ]: Found error trace [2018-06-26 18:15:38,420 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:15:38,420 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:15:38,420 INFO ]: Analyzing trace with hash -1380182645, now seen corresponding path program 1 times [2018-06-26 18:15:38,420 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:15:38,420 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:15:38,421 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:38,421 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:15:38,421 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:38,449 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:38,529 INFO ]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-26 18:15:38,529 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:15:38,529 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-06-26 18:15:38,538 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:15:38,574 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:38,577 INFO ]: Computing forward predicates... [2018-06-26 18:15:38,603 INFO ]: Checked inductivity of 10 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-26 18:15:38,622 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:15:38,622 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-06-26 18:15:38,622 INFO ]: Interpolant automaton has 6 states [2018-06-26 18:15:38,622 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-26 18:15:38,622 INFO ]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-06-26 18:15:38,623 INFO ]: Start difference. First operand 60 states and 113 transitions. Second operand 6 states. [2018-06-26 18:15:38,769 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:15:38,769 INFO ]: Finished difference Result 92 states and 174 transitions. [2018-06-26 18:15:38,772 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-26 18:15:38,772 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-26 18:15:38,772 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:15:38,775 INFO ]: With dead ends: 92 [2018-06-26 18:15:38,775 INFO ]: Without dead ends: 92 [2018-06-26 18:15:38,775 INFO ]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-06-26 18:15:38,775 INFO ]: Start minimizeSevpa. Operand 92 states. [2018-06-26 18:15:38,789 INFO ]: Finished minimizeSevpa. Reduced states from 92 to 68. [2018-06-26 18:15:38,789 INFO ]: Start removeUnreachable. Operand 68 states. [2018-06-26 18:15:38,791 INFO ]: Finished removeUnreachable. Reduced from 68 states to 68 states and 129 transitions. [2018-06-26 18:15:38,791 INFO ]: Start accepts. Automaton has 68 states and 129 transitions. Word has length 17 [2018-06-26 18:15:38,791 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:15:38,791 INFO ]: Abstraction has 68 states and 129 transitions. [2018-06-26 18:15:38,791 INFO ]: Interpolant automaton has 6 states. [2018-06-26 18:15:38,791 INFO ]: Start isEmpty. Operand 68 states and 129 transitions. [2018-06-26 18:15:38,794 INFO ]: Finished isEmpty. Found accepting run of length 24 [2018-06-26 18:15:38,794 INFO ]: Found error trace [2018-06-26 18:15:38,794 INFO ]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:15:38,794 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:15:38,794 INFO ]: Analyzing trace with hash 1948613063, now seen corresponding path program 1 times [2018-06-26 18:15:38,794 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:15:38,794 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:15:38,795 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:38,795 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:15:38,795 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:38,822 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:38,971 INFO ]: Checked inductivity of 21 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-26 18:15:38,971 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:15:38,971 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:15:38,977 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:15:39,010 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:39,013 INFO ]: Computing forward predicates... [2018-06-26 18:15:39,153 INFO ]: Checked inductivity of 21 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-26 18:15:39,173 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:15:39,174 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2018-06-26 18:15:39,174 INFO ]: Interpolant automaton has 15 states [2018-06-26 18:15:39,174 INFO ]: Constructing interpolant automaton starting with 15 interpolants. [2018-06-26 18:15:39,174 INFO ]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2018-06-26 18:15:39,174 INFO ]: Start difference. First operand 68 states and 129 transitions. Second operand 15 states. [2018-06-26 18:15:40,311 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:15:40,311 INFO ]: Finished difference Result 113 states and 253 transitions. [2018-06-26 18:15:40,311 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-06-26 18:15:40,311 INFO ]: Start accepts. Automaton has 15 states. Word has length 23 [2018-06-26 18:15:40,311 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:15:40,314 INFO ]: With dead ends: 113 [2018-06-26 18:15:40,314 INFO ]: Without dead ends: 113 [2018-06-26 18:15:40,315 INFO ]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=787, Unknown=0, NotChecked=0, Total=930 [2018-06-26 18:15:40,315 INFO ]: Start minimizeSevpa. Operand 113 states. [2018-06-26 18:15:40,336 INFO ]: Finished minimizeSevpa. Reduced states from 113 to 73. [2018-06-26 18:15:40,336 INFO ]: Start removeUnreachable. Operand 73 states. [2018-06-26 18:15:40,338 INFO ]: Finished removeUnreachable. Reduced from 73 states to 73 states and 142 transitions. [2018-06-26 18:15:40,338 INFO ]: Start accepts. Automaton has 73 states and 142 transitions. Word has length 23 [2018-06-26 18:15:40,339 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:15:40,339 INFO ]: Abstraction has 73 states and 142 transitions. [2018-06-26 18:15:40,339 INFO ]: Interpolant automaton has 15 states. [2018-06-26 18:15:40,339 INFO ]: Start isEmpty. Operand 73 states and 142 transitions. [2018-06-26 18:15:40,341 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-26 18:15:40,341 INFO ]: Found error trace [2018-06-26 18:15:40,341 INFO ]: trace histogram [4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:15:40,341 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:15:40,341 INFO ]: Analyzing trace with hash -99902064, now seen corresponding path program 2 times [2018-06-26 18:15:40,341 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:15:40,341 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:15:40,342 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:40,342 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:15:40,342 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:40,367 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:40,493 INFO ]: Checked inductivity of 38 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-06-26 18:15:40,493 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:15:40,494 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:15:40,510 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-26 18:15:40,577 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-26 18:15:40,577 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:40,581 INFO ]: Computing forward predicates... [2018-06-26 18:15:40,866 INFO ]: Checked inductivity of 38 backedges. 21 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-06-26 18:15:40,898 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:15:40,898 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2018-06-26 18:15:40,898 INFO ]: Interpolant automaton has 14 states [2018-06-26 18:15:40,898 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-26 18:15:40,898 INFO ]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-06-26 18:15:40,899 INFO ]: Start difference. First operand 73 states and 142 transitions. Second operand 14 states. [2018-06-26 18:15:42,100 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:15:42,100 INFO ]: Finished difference Result 165 states and 366 transitions. [2018-06-26 18:15:42,120 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-06-26 18:15:42,120 INFO ]: Start accepts. Automaton has 14 states. Word has length 29 [2018-06-26 18:15:42,120 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:15:42,123 INFO ]: With dead ends: 165 [2018-06-26 18:15:42,123 INFO ]: Without dead ends: 101 [2018-06-26 18:15:42,123 INFO ]: 0 DeclaredPredicates, 65 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=179, Invalid=813, Unknown=0, NotChecked=0, Total=992 [2018-06-26 18:15:42,123 INFO ]: Start minimizeSevpa. Operand 101 states. [2018-06-26 18:15:42,138 INFO ]: Finished minimizeSevpa. Reduced states from 101 to 70. [2018-06-26 18:15:42,138 INFO ]: Start removeUnreachable. Operand 70 states. [2018-06-26 18:15:42,139 INFO ]: Finished removeUnreachable. Reduced from 70 states to 70 states and 145 transitions. [2018-06-26 18:15:42,139 INFO ]: Start accepts. Automaton has 70 states and 145 transitions. Word has length 29 [2018-06-26 18:15:42,140 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:15:42,140 INFO ]: Abstraction has 70 states and 145 transitions. [2018-06-26 18:15:42,140 INFO ]: Interpolant automaton has 14 states. [2018-06-26 18:15:42,140 INFO ]: Start isEmpty. Operand 70 states and 145 transitions. [2018-06-26 18:15:42,142 INFO ]: Finished isEmpty. Found accepting run of length 36 [2018-06-26 18:15:42,142 INFO ]: Found error trace [2018-06-26 18:15:42,142 INFO ]: trace histogram [5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:15:42,142 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:15:42,143 INFO ]: Analyzing trace with hash -1020791533, now seen corresponding path program 3 times [2018-06-26 18:15:42,143 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:15:42,143 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:15:42,143 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:42,143 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-26 18:15:42,143 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:42,170 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:42,284 INFO ]: Checked inductivity of 61 backedges. 24 proven. 14 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-06-26 18:15:42,284 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:15:42,284 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:15:42,290 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-26 18:15:42,359 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-06-26 18:15:42,359 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:42,363 INFO ]: Computing forward predicates... [2018-06-26 18:15:42,701 INFO ]: Checked inductivity of 61 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-06-26 18:15:42,721 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:15:42,721 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20] total 29 [2018-06-26 18:15:42,722 INFO ]: Interpolant automaton has 29 states [2018-06-26 18:15:42,722 INFO ]: Constructing interpolant automaton starting with 29 interpolants. [2018-06-26 18:15:42,722 INFO ]: CoverageRelationStatistics Valid=59, Invalid=753, Unknown=0, NotChecked=0, Total=812 [2018-06-26 18:15:42,722 INFO ]: Start difference. First operand 70 states and 145 transitions. Second operand 29 states. [2018-06-26 18:15:46,135 WARN ]: Spent 221.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2018-06-26 18:15:50,995 WARN ]: Spent 484.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2018-06-26 18:15:57,543 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:15:57,543 INFO ]: Finished difference Result 486 states and 1416 transitions. [2018-06-26 18:15:57,543 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2018-06-26 18:15:57,543 INFO ]: Start accepts. Automaton has 29 states. Word has length 35 [2018-06-26 18:15:57,543 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:15:57,557 INFO ]: With dead ends: 486 [2018-06-26 18:15:57,557 INFO ]: Without dead ends: 471 [2018-06-26 18:15:57,566 INFO ]: 0 DeclaredPredicates, 214 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14213 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=3577, Invalid=34643, Unknown=0, NotChecked=0, Total=38220 [2018-06-26 18:15:57,566 INFO ]: Start minimizeSevpa. Operand 471 states. [2018-06-26 18:15:57,693 INFO ]: Finished minimizeSevpa. Reduced states from 471 to 190. [2018-06-26 18:15:57,694 INFO ]: Start removeUnreachable. Operand 190 states. [2018-06-26 18:15:57,699 INFO ]: Finished removeUnreachable. Reduced from 190 states to 190 states and 359 transitions. [2018-06-26 18:15:57,699 INFO ]: Start accepts. Automaton has 190 states and 359 transitions. Word has length 35 [2018-06-26 18:15:57,699 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:15:57,699 INFO ]: Abstraction has 190 states and 359 transitions. [2018-06-26 18:15:57,700 INFO ]: Interpolant automaton has 29 states. [2018-06-26 18:15:57,700 INFO ]: Start isEmpty. Operand 190 states and 359 transitions. [2018-06-26 18:15:57,706 INFO ]: Finished isEmpty. Found accepting run of length 42 [2018-06-26 18:15:57,706 INFO ]: Found error trace [2018-06-26 18:15:57,707 INFO ]: trace histogram [6, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:15:57,707 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:15:57,707 INFO ]: Analyzing trace with hash -372582376, now seen corresponding path program 4 times [2018-06-26 18:15:57,707 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:15:57,707 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:15:57,708 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:57,708 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-26 18:15:57,708 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:15:57,744 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:58,416 INFO ]: Checked inductivity of 92 backedges. 39 proven. 11 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-06-26 18:15:58,417 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:15:58,417 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-26 18:15:58,434 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:15:58,496 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-26 18:15:58,496 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:15:58,501 INFO ]: Computing forward predicates... [2018-06-26 18:15:58,644 INFO ]: Checked inductivity of 92 backedges. 50 proven. 16 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-06-26 18:15:58,675 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:15:58,675 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 15 [2018-06-26 18:15:58,675 INFO ]: Interpolant automaton has 15 states [2018-06-26 18:15:58,675 INFO ]: Constructing interpolant automaton starting with 15 interpolants. [2018-06-26 18:15:58,675 INFO ]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-06-26 18:15:58,675 INFO ]: Start difference. First operand 190 states and 359 transitions. Second operand 15 states. [2018-06-26 18:16:00,327 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:16:00,328 INFO ]: Finished difference Result 605 states and 1528 transitions. [2018-06-26 18:16:00,328 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-06-26 18:16:00,328 INFO ]: Start accepts. Automaton has 15 states. Word has length 41 [2018-06-26 18:16:00,328 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:16:00,335 INFO ]: With dead ends: 605 [2018-06-26 18:16:00,335 INFO ]: Without dead ends: 357 [2018-06-26 18:16:00,336 INFO ]: 0 DeclaredPredicates, 116 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=548, Invalid=3112, Unknown=0, NotChecked=0, Total=3660 [2018-06-26 18:16:00,336 INFO ]: Start minimizeSevpa. Operand 357 states. [2018-06-26 18:16:00,373 INFO ]: Finished minimizeSevpa. Reduced states from 357 to 228. [2018-06-26 18:16:00,373 INFO ]: Start removeUnreachable. Operand 228 states. [2018-06-26 18:16:00,377 INFO ]: Finished removeUnreachable. Reduced from 228 states to 228 states and 426 transitions. [2018-06-26 18:16:00,377 INFO ]: Start accepts. Automaton has 228 states and 426 transitions. Word has length 41 [2018-06-26 18:16:00,378 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:16:00,378 INFO ]: Abstraction has 228 states and 426 transitions. [2018-06-26 18:16:00,378 INFO ]: Interpolant automaton has 15 states. [2018-06-26 18:16:00,378 INFO ]: Start isEmpty. Operand 228 states and 426 transitions. [2018-06-26 18:16:00,384 INFO ]: Finished isEmpty. Found accepting run of length 48 [2018-06-26 18:16:00,384 INFO ]: Found error trace [2018-06-26 18:16:00,384 INFO ]: trace histogram [7, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:16:00,384 INFO ]: === Iteration 11 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:16:00,384 INFO ]: Analyzing trace with hash 2067285460, now seen corresponding path program 5 times [2018-06-26 18:16:00,384 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:16:00,384 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:16:00,386 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:16:00,386 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-26 18:16:00,386 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:16:00,421 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:16:00,620 INFO ]: Checked inductivity of 131 backedges. 44 proven. 35 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-06-26 18:16:00,620 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:16:00,620 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:16:00,626 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-26 18:16:00,681 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-06-26 18:16:00,681 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:16:00,686 INFO ]: Computing forward predicates... [2018-06-26 18:16:01,151 INFO ]: Checked inductivity of 131 backedges. 58 proven. 44 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-06-26 18:16:01,171 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:16:01,171 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21] total 29 [2018-06-26 18:16:01,171 INFO ]: Interpolant automaton has 29 states [2018-06-26 18:16:01,172 INFO ]: Constructing interpolant automaton starting with 29 interpolants. [2018-06-26 18:16:01,172 INFO ]: CoverageRelationStatistics Valid=65, Invalid=747, Unknown=0, NotChecked=0, Total=812 [2018-06-26 18:16:01,172 INFO ]: Start difference. First operand 228 states and 426 transitions. Second operand 29 states. [2018-06-26 18:16:02,613 WARN ]: Spent 111.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2018-06-26 18:16:05,330 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:16:05,330 INFO ]: Finished difference Result 555 states and 1479 transitions. [2018-06-26 18:16:05,330 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-06-26 18:16:05,330 INFO ]: Start accepts. Automaton has 29 states. Word has length 47 [2018-06-26 18:16:05,330 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:16:05,343 INFO ]: With dead ends: 555 [2018-06-26 18:16:05,343 INFO ]: Without dead ends: 555 [2018-06-26 18:16:05,345 INFO ]: 0 DeclaredPredicates, 134 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1648 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=731, Invalid=6579, Unknown=0, NotChecked=0, Total=7310 [2018-06-26 18:16:05,346 INFO ]: Start minimizeSevpa. Operand 555 states. [2018-06-26 18:16:05,406 INFO ]: Finished minimizeSevpa. Reduced states from 555 to 292. [2018-06-26 18:16:05,406 INFO ]: Start removeUnreachable. Operand 292 states. [2018-06-26 18:16:05,412 INFO ]: Finished removeUnreachable. Reduced from 292 states to 292 states and 608 transitions. [2018-06-26 18:16:05,412 INFO ]: Start accepts. Automaton has 292 states and 608 transitions. Word has length 47 [2018-06-26 18:16:05,412 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:16:05,412 INFO ]: Abstraction has 292 states and 608 transitions. [2018-06-26 18:16:05,412 INFO ]: Interpolant automaton has 29 states. [2018-06-26 18:16:05,412 INFO ]: Start isEmpty. Operand 292 states and 608 transitions. [2018-06-26 18:16:05,420 INFO ]: Finished isEmpty. Found accepting run of length 66 [2018-06-26 18:16:05,420 INFO ]: Found error trace [2018-06-26 18:16:05,420 INFO ]: trace histogram [10, 8, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 18:16:05,420 INFO ]: === Iteration 12 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:16:05,421 INFO ]: Analyzing trace with hash 594233791, now seen corresponding path program 1 times [2018-06-26 18:16:05,421 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:16:05,421 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:16:05,421 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:16:05,421 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-26 18:16:05,421 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:16:05,464 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:16:05,637 INFO ]: Checked inductivity of 264 backedges. 103 proven. 35 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-06-26 18:16:05,637 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:16:05,637 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:16:05,643 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:16:05,708 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:16:05,713 INFO ]: Computing forward predicates... [2018-06-26 18:16:06,062 INFO ]: Checked inductivity of 264 backedges. 122 proven. 68 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-06-26 18:16:06,081 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:16:06,081 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13] total 16 [2018-06-26 18:16:06,082 INFO ]: Interpolant automaton has 16 states [2018-06-26 18:16:06,082 INFO ]: Constructing interpolant automaton starting with 16 interpolants. [2018-06-26 18:16:06,082 INFO ]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2018-06-26 18:16:06,082 INFO ]: Start difference. First operand 292 states and 608 transitions. Second operand 16 states. [2018-06-26 18:16:08,942 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:16:08,942 INFO ]: Finished difference Result 1103 states and 3321 transitions. [2018-06-26 18:16:08,943 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-06-26 18:16:08,943 INFO ]: Start accepts. Automaton has 16 states. Word has length 65 [2018-06-26 18:16:08,943 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:16:08,981 INFO ]: With dead ends: 1103 [2018-06-26 18:16:08,981 INFO ]: Without dead ends: 1044 [2018-06-26 18:16:08,983 INFO ]: 0 DeclaredPredicates, 169 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2311 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1147, Invalid=6163, Unknown=0, NotChecked=0, Total=7310 [2018-06-26 18:16:08,986 INFO ]: Start minimizeSevpa. Operand 1044 states. [2018-06-26 18:16:09,183 INFO ]: Finished minimizeSevpa. Reduced states from 1044 to 465. [2018-06-26 18:16:09,183 INFO ]: Start removeUnreachable. Operand 465 states. [2018-06-26 18:16:09,192 INFO ]: Finished removeUnreachable. Reduced from 465 states to 465 states and 1135 transitions. [2018-06-26 18:16:09,192 INFO ]: Start accepts. Automaton has 465 states and 1135 transitions. Word has length 65 [2018-06-26 18:16:09,193 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:16:09,193 INFO ]: Abstraction has 465 states and 1135 transitions. [2018-06-26 18:16:09,193 INFO ]: Interpolant automaton has 16 states. [2018-06-26 18:16:09,193 INFO ]: Start isEmpty. Operand 465 states and 1135 transitions. [2018-06-26 18:16:09,205 INFO ]: Finished isEmpty. Found accepting run of length 60 [2018-06-26 18:16:09,205 INFO ]: Found error trace [2018-06-26 18:16:09,205 INFO ]: trace histogram [9, 7, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2018-06-26 18:16:09,205 INFO ]: === Iteration 13 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:16:09,206 INFO ]: Analyzing trace with hash -548136288, now seen corresponding path program 6 times [2018-06-26 18:16:09,206 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:16:09,206 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:16:09,207 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:16:09,207 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:16:09,207 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:16:09,237 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:16:09,807 INFO ]: Checked inductivity of 215 backedges. 89 proven. 42 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-06-26 18:16:09,807 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:16:09,807 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:16:09,813 INFO ]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-06-26 18:16:09,882 INFO ]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-06-26 18:16:09,883 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:16:09,887 INFO ]: Computing forward predicates... [2018-06-26 18:16:10,066 INFO ]: Checked inductivity of 215 backedges. 100 proven. 17 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-06-26 18:16:10,087 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:16:10,087 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 24 [2018-06-26 18:16:10,088 INFO ]: Interpolant automaton has 24 states [2018-06-26 18:16:10,088 INFO ]: Constructing interpolant automaton starting with 24 interpolants. [2018-06-26 18:16:10,088 INFO ]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2018-06-26 18:16:10,088 INFO ]: Start difference. First operand 465 states and 1135 transitions. Second operand 24 states. [2018-06-26 18:16:21,718 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:16:21,718 INFO ]: Finished difference Result 3256 states and 9600 transitions. [2018-06-26 18:16:21,719 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2018-06-26 18:16:21,719 INFO ]: Start accepts. Automaton has 24 states. Word has length 59 [2018-06-26 18:16:21,720 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:16:21,826 INFO ]: With dead ends: 3256 [2018-06-26 18:16:21,826 INFO ]: Without dead ends: 2879 [2018-06-26 18:16:21,831 INFO ]: 0 DeclaredPredicates, 421 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18522 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=3441, Invalid=43431, Unknown=0, NotChecked=0, Total=46872 [2018-06-26 18:16:21,832 INFO ]: Start minimizeSevpa. Operand 2879 states. [2018-06-26 18:16:22,168 INFO ]: Finished minimizeSevpa. Reduced states from 2879 to 1121. [2018-06-26 18:16:22,168 INFO ]: Start removeUnreachable. Operand 1121 states. [2018-06-26 18:16:22,193 INFO ]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 3318 transitions. [2018-06-26 18:16:22,193 INFO ]: Start accepts. Automaton has 1121 states and 3318 transitions. Word has length 59 [2018-06-26 18:16:22,193 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:16:22,193 INFO ]: Abstraction has 1121 states and 3318 transitions. [2018-06-26 18:16:22,193 INFO ]: Interpolant automaton has 24 states. [2018-06-26 18:16:22,193 INFO ]: Start isEmpty. Operand 1121 states and 3318 transitions. [2018-06-26 18:16:22,225 INFO ]: Finished isEmpty. Found accepting run of length 72 [2018-06-26 18:16:22,225 INFO ]: Found error trace [2018-06-26 18:16:22,225 INFO ]: trace histogram [11, 9, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2018-06-26 18:16:22,225 INFO ]: === Iteration 14 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:16:22,225 INFO ]: Analyzing trace with hash 842498592, now seen corresponding path program 7 times [2018-06-26 18:16:22,225 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:16:22,225 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:16:22,226 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:16:22,226 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-26 18:16:22,226 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:16:22,260 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:16:22,532 INFO ]: Checked inductivity of 341 backedges. 120 proven. 64 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2018-06-26 18:16:22,532 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-26 18:16:22,532 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-26 18:16:22,537 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:16:22,607 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:16:22,611 INFO ]: Computing forward predicates... [2018-06-26 18:16:22,864 INFO ]: Checked inductivity of 341 backedges. 138 proven. 82 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2018-06-26 18:16:22,884 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-26 18:16:22,884 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 26 [2018-06-26 18:16:22,884 INFO ]: Interpolant automaton has 26 states [2018-06-26 18:16:22,885 INFO ]: Constructing interpolant automaton starting with 26 interpolants. [2018-06-26 18:16:22,885 INFO ]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2018-06-26 18:16:22,885 INFO ]: Start difference. First operand 1121 states and 3318 transitions. Second operand 26 states. [2018-06-26 18:16:28,722 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:16:28,722 INFO ]: Finished difference Result 1272 states and 2178 transitions. [2018-06-26 18:16:28,722 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2018-06-26 18:16:28,723 INFO ]: Start accepts. Automaton has 26 states. Word has length 71 [2018-06-26 18:16:28,723 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:16:28,723 INFO ]: With dead ends: 1272 [2018-06-26 18:16:28,723 INFO ]: Without dead ends: 0 [2018-06-26 18:16:28,725 INFO ]: 0 DeclaredPredicates, 279 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6357 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1864, Invalid=17596, Unknown=0, NotChecked=0, Total=19460 [2018-06-26 18:16:28,725 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-26 18:16:28,725 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-26 18:16:28,725 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-26 18:16:28,725 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-26 18:16:28,725 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2018-06-26 18:16:28,725 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:16:28,725 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-26 18:16:28,725 INFO ]: Interpolant automaton has 26 states. [2018-06-26 18:16:28,725 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-26 18:16:28,725 INFO ]: Finished isEmpty. No accepting run. [2018-06-26 18:16:28,727 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:16:28,729 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:16:28 BasicIcfg [2018-06-26 18:16:28,729 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:16:28,729 INFO ]: Toolchain (without parser) took 55021.98 ms. Allocated memory was 308.3 MB in the beginning and 972.6 MB in the end (delta: 664.3 MB). Free memory was 262.8 MB in the beginning and 329.1 MB in the end (delta: -66.3 MB). Peak memory consumption was 597.9 MB. Max. memory is 3.6 GB. [2018-06-26 18:16:28,730 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 308.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:16:28,730 INFO ]: ChcToBoogie took 63.81 ms. Allocated memory is still 308.3 MB. Free memory was 261.8 MB in the beginning and 259.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:16:28,731 INFO ]: Boogie Preprocessor took 42.52 ms. Allocated memory is still 308.3 MB. Free memory was 259.8 MB in the beginning and 258.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-26 18:16:28,731 INFO ]: RCFGBuilder took 395.05 ms. Allocated memory is still 308.3 MB. Free memory was 258.8 MB in the beginning and 246.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 3.6 GB. [2018-06-26 18:16:28,732 INFO ]: BlockEncodingV2 took 139.38 ms. Allocated memory is still 308.3 MB. Free memory was 246.7 MB in the beginning and 239.8 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:16:28,732 INFO ]: TraceAbstraction took 54364.35 ms. Allocated memory was 308.3 MB in the beginning and 972.6 MB in the end (delta: 664.3 MB). Free memory was 239.8 MB in the beginning and 329.1 MB in the end (delta: -89.3 MB). Peak memory consumption was 574.9 MB. Max. memory is 3.6 GB. [2018-06-26 18:16:28,735 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 22 locations, 32 edges - StatisticsResult: Encoded RCFG 15 locations, 24 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 308.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 63.81 ms. Allocated memory is still 308.3 MB. Free memory was 261.8 MB in the beginning and 259.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 42.52 ms. Allocated memory is still 308.3 MB. Free memory was 259.8 MB in the beginning and 258.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 395.05 ms. Allocated memory is still 308.3 MB. Free memory was 258.8 MB in the beginning and 246.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 139.38 ms. Allocated memory is still 308.3 MB. Free memory was 246.7 MB in the beginning and 239.8 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 54364.35 ms. Allocated memory was 308.3 MB in the beginning and 972.6 MB in the end (delta: 664.3 MB). Free memory was 239.8 MB in the beginning and 329.1 MB in the end (delta: -89.3 MB). Peak memory consumption was 574.9 MB. 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, 15 locations, 1 error locations. SAFE Result, 54.3s OverallTime, 14 OverallIterations, 11 TraceHistogramMax, 46.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1097 SDtfs, 1683 SDslu, 4544 SDs, 0 SdLazy, 38098 SolverSat, 9390 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1534 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 876 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44505 ImplicationChecksByTransitivity, 20.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1121occurred in iteration=13, 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: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 3149 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 833 NumberOfCodeBlocks, 828 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 808 ConstructedInterpolants, 0 QuantifiedInterpolants, 89252 SizeOfPredicates, 143 NumberOfNonLiveVariables, 3828 ConjunctsInSsa, 296 ConjunctsInUnsatCore, 25 InterpolantComputations, 3 PerfectInterpolantSequences, 1869/2358 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/a-max.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_18-16-28-747.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/a-max.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_18-16-28-747.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/a-max.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_18-16-28-747.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/a-max.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_18-16-28-747.csv Received shutdown request...