java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.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/enc-zip4.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 09:26:17,680 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 09:26:17,683 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 09:26:17,698 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 09:26:17,698 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 09:26:17,699 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 09:26:17,701 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 09:26:17,703 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 09:26:17,705 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 09:26:17,705 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 09:26:17,706 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 09:26:17,706 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 09:26:17,707 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 09:26:17,708 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 09:26:17,709 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 09:26:17,712 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 09:26:17,714 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 09:26:17,725 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 09:26:17,726 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 09:26:17,727 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 09:26:17,728 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 09:26:17,731 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 09:26:17,731 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 09:26:17,731 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 09:26:17,739 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 09:26:17,740 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 09:26:17,740 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 09:26:17,741 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 09:26:17,742 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 09:26:17,742 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 09:26:17,743 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 09:26:17,743 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 09:26:17,743 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 09:26:17,749 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 09:26:17,750 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 09:26:17,750 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 09:26:17,771 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 09:26:17,772 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 09:26:17,772 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 09:26:17,772 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 09:26:17,773 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 09:26:17,773 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 09:26:17,773 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 09:26:17,774 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 09:26:17,774 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 09:26:17,774 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 09:26:17,774 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 09:26:17,775 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 09:26:17,775 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 09:26:17,775 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 09:26:17,775 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 09:26:17,775 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 09:26:17,775 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 09:26:17,776 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 09:26:17,776 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 09:26:17,776 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 09:26:17,776 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 09:26:17,778 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 09:26:17,778 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 09:26:17,829 INFO ]: Repository-Root is: /tmp [2018-06-25 09:26:17,847 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 09:26:17,853 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 09:26:17,855 INFO ]: Initializing SmtParser... [2018-06-25 09:26:17,855 INFO ]: SmtParser initialized [2018-06-25 09:26:17,856 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/enc-zip4.smt2 [2018-06-25 09:26:17,857 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 [2018-06-25 09:26:17,947 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/enc-zip4.smt2 unknown [2018-06-25 09:26:18,112 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/enc-zip4.smt2 [2018-06-25 09:26:18,118 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 09:26:18,123 INFO ]: Walking toolchain with 4 elements. [2018-06-25 09:26:18,124 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 09:26:18,124 INFO ]: Initializing ChcToBoogie... [2018-06-25 09:26:18,124 INFO ]: ChcToBoogie initialized [2018-06-25 09:26:18,128 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:26:18" (1/1) ... [2018-06-25 09:26:18,185 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:26:18 Unit [2018-06-25 09:26:18,185 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 09:26:18,186 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 09:26:18,186 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 09:26:18,186 INFO ]: Boogie Preprocessor initialized [2018-06-25 09:26:18,207 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:26:18" (1/1) ... [2018-06-25 09:26:18,207 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:26:18" (1/1) ... [2018-06-25 09:26:18,213 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:26:18" (1/1) ... [2018-06-25 09:26:18,214 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:26:18" (1/1) ... [2018-06-25 09:26:18,218 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:26:18" (1/1) ... [2018-06-25 09:26:18,220 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:26:18" (1/1) ... [2018-06-25 09:26:18,221 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:26:18" (1/1) ... [2018-06-25 09:26:18,229 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 09:26:18,230 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 09:26:18,230 INFO ]: Initializing RCFGBuilder... [2018-06-25 09:26:18,230 INFO ]: RCFGBuilder initialized [2018-06-25 09:26:18,231 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:26:18" (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) [2018-06-25 09:26:18,247 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 09:26:18,247 INFO ]: Found specification of procedure gotoProc [2018-06-25 09:26:18,247 INFO ]: Found implementation of procedure gotoProc [2018-06-25 09:26:18,247 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 09:26:18,247 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 09:26:18,247 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 [2018-06-25 09:26:18,598 INFO ]: Using library mode [2018-06-25 09:26:18,598 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:26:18 BoogieIcfgContainer [2018-06-25 09:26:18,598 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 09:26:18,599 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 09:26:18,600 INFO ]: Initializing TraceAbstraction... [2018-06-25 09:26:18,603 INFO ]: TraceAbstraction initialized [2018-06-25 09:26:18,603 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:26:18" (1/3) ... [2018-06-25 09:26:18,604 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541367fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 09:26:18, skipping insertion in model container [2018-06-25 09:26:18,604 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:26:18" (2/3) ... [2018-06-25 09:26:18,604 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541367fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 09:26:18, skipping insertion in model container [2018-06-25 09:26:18,604 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:26:18" (3/3) ... [2018-06-25 09:26:18,606 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 09:26:18,615 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 09:26:18,624 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 09:26:18,662 INFO ]: Using default assertion order modulation [2018-06-25 09:26:18,662 INFO ]: Interprodecural is true [2018-06-25 09:26:18,662 INFO ]: Hoare is false [2018-06-25 09:26:18,662 INFO ]: Compute interpolants for FPandBP [2018-06-25 09:26:18,662 INFO ]: Backedges is TWOTRACK [2018-06-25 09:26:18,662 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 09:26:18,662 INFO ]: Difference is false [2018-06-25 09:26:18,662 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 09:26:18,662 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 09:26:18,676 INFO ]: Start isEmpty. Operand 14 states. [2018-06-25 09:26:18,687 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 09:26:18,687 INFO ]: Found error trace [2018-06-25 09:26:18,688 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:26:18,688 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:26:18,693 INFO ]: Analyzing trace with hash -1406829346, now seen corresponding path program 1 times [2018-06-25 09:26:18,694 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:26:18,695 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:26:18,727 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:26:18,727 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:26:18,727 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:26:18,751 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:26:18,783 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:26:18,785 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:26:18,785 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-25 09:26:18,788 INFO ]: Interpolant automaton has 2 states [2018-06-25 09:26:18,801 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-25 09:26:18,801 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-25 09:26:18,803 INFO ]: Start difference. First operand 14 states. Second operand 2 states. [2018-06-25 09:26:18,818 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:26:18,819 INFO ]: Finished difference Result 12 states and 17 transitions. [2018-06-25 09:26:18,819 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-25 09:26:18,820 INFO ]: Start accepts. Automaton has 2 states. Word has length 7 [2018-06-25 09:26:18,820 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:26:18,838 INFO ]: With dead ends: 12 [2018-06-25 09:26:18,838 INFO ]: Without dead ends: 12 [2018-06-25 09:26:18,840 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-25 09:26:18,855 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-25 09:26:18,873 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-25 09:26:18,874 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-25 09:26:18,874 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2018-06-25 09:26:18,876 INFO ]: Start accepts. Automaton has 12 states and 17 transitions. Word has length 7 [2018-06-25 09:26:18,876 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:26:18,876 INFO ]: Abstraction has 12 states and 17 transitions. [2018-06-25 09:26:18,876 INFO ]: Interpolant automaton has 2 states. [2018-06-25 09:26:18,876 INFO ]: Start isEmpty. Operand 12 states and 17 transitions. [2018-06-25 09:26:18,877 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 09:26:18,877 INFO ]: Found error trace [2018-06-25 09:26:18,877 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:26:18,877 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:26:18,878 INFO ]: Analyzing trace with hash -707386135, now seen corresponding path program 1 times [2018-06-25 09:26:18,878 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:26:18,878 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:26:18,879 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:26:18,879 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:26:18,879 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:26:18,893 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:26:19,065 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:26:19,065 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:26:19,065 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 09:26:19,067 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:26:19,067 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:26:19,067 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:26:19,067 INFO ]: Start difference. First operand 12 states and 17 transitions. Second operand 4 states. [2018-06-25 09:26:19,167 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:26:19,167 INFO ]: Finished difference Result 21 states and 31 transitions. [2018-06-25 09:26:19,167 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:26:19,167 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-25 09:26:19,168 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:26:19,168 INFO ]: With dead ends: 21 [2018-06-25 09:26:19,168 INFO ]: Without dead ends: 21 [2018-06-25 09:26:19,169 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 09:26:19,169 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-25 09:26:19,173 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-06-25 09:26:19,173 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-25 09:26:19,174 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2018-06-25 09:26:19,174 INFO ]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 8 [2018-06-25 09:26:19,175 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:26:19,175 INFO ]: Abstraction has 21 states and 31 transitions. [2018-06-25 09:26:19,175 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:26:19,175 INFO ]: Start isEmpty. Operand 21 states and 31 transitions. [2018-06-25 09:26:19,176 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 09:26:19,176 INFO ]: Found error trace [2018-06-25 09:26:19,176 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:26:19,176 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:26:19,176 INFO ]: Analyzing trace with hash -653821917, now seen corresponding path program 1 times [2018-06-25 09:26:19,176 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:26:19,176 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:26:19,177 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:26:19,177 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:26:19,177 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:26:19,186 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:26:19,206 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:26:19,206 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:26:19,206 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 09:26:19,206 INFO ]: Interpolant automaton has 3 states [2018-06-25 09:26:19,206 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 09:26:19,206 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 09:26:19,206 INFO ]: Start difference. First operand 21 states and 31 transitions. Second operand 3 states. [2018-06-25 09:26:19,244 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:26:19,244 INFO ]: Finished difference Result 23 states and 33 transitions. [2018-06-25 09:26:19,245 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 09:26:19,245 INFO ]: Start accepts. Automaton has 3 states. Word has length 8 [2018-06-25 09:26:19,245 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:26:19,246 INFO ]: With dead ends: 23 [2018-06-25 09:26:19,246 INFO ]: Without dead ends: 21 [2018-06-25 09:26:19,246 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 [2018-06-25 09:26:19,246 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-25 09:26:19,251 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-06-25 09:26:19,251 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-25 09:26:19,252 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2018-06-25 09:26:19,252 INFO ]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 8 [2018-06-25 09:26:19,252 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:26:19,252 INFO ]: Abstraction has 21 states and 27 transitions. [2018-06-25 09:26:19,252 INFO ]: Interpolant automaton has 3 states. [2018-06-25 09:26:19,252 INFO ]: Start isEmpty. Operand 21 states and 27 transitions. [2018-06-25 09:26:19,253 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 09:26:19,253 INFO ]: Found error trace [2018-06-25 09:26:19,253 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:26:19,253 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:26:19,253 INFO ]: Analyzing trace with hash 1141613743, now seen corresponding path program 1 times [2018-06-25 09:26:19,253 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:26:19,253 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:26:19,255 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:26:19,255 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:26:19,255 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:26:19,273 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:26:19,324 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:26:19,324 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:26:19,325 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 09:26:19,325 INFO ]: Interpolant automaton has 3 states [2018-06-25 09:26:19,325 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 09:26:19,325 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 09:26:19,325 INFO ]: Start difference. First operand 21 states and 27 transitions. Second operand 3 states. [2018-06-25 09:26:19,371 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:26:19,371 INFO ]: Finished difference Result 27 states and 36 transitions. [2018-06-25 09:26:19,371 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 09:26:19,371 INFO ]: Start accepts. Automaton has 3 states. Word has length 9 [2018-06-25 09:26:19,371 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:26:19,374 INFO ]: With dead ends: 27 [2018-06-25 09:26:19,374 INFO ]: Without dead ends: 27 [2018-06-25 09:26:19,374 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 [2018-06-25 09:26:19,374 INFO ]: Start minimizeSevpa. Operand 27 states. [2018-06-25 09:26:19,382 INFO ]: Finished minimizeSevpa. Reduced states from 27 to 22. [2018-06-25 09:26:19,382 INFO ]: Start removeUnreachable. Operand 22 states. [2018-06-25 09:26:19,383 INFO ]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2018-06-25 09:26:19,383 INFO ]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 9 [2018-06-25 09:26:19,383 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:26:19,383 INFO ]: Abstraction has 22 states and 27 transitions. [2018-06-25 09:26:19,383 INFO ]: Interpolant automaton has 3 states. [2018-06-25 09:26:19,383 INFO ]: Start isEmpty. Operand 22 states and 27 transitions. [2018-06-25 09:26:19,384 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-25 09:26:19,384 INFO ]: Found error trace [2018-06-25 09:26:19,384 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:26:19,384 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:26:19,384 INFO ]: Analyzing trace with hash -1681804780, now seen corresponding path program 1 times [2018-06-25 09:26:19,384 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:26:19,384 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:26:19,387 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:26:19,387 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:26:19,387 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:26:19,429 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:26:19,714 INFO ]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-25 09:26:19,714 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 09:26:19,714 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 [2018-06-25 09:26:19,723 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:26:19,750 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:26:19,758 INFO ]: Computing forward predicates... [2018-06-25 09:26:20,127 INFO ]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-25 09:26:20,147 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 09:26:20,147 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-25 09:26:20,147 INFO ]: Interpolant automaton has 10 states [2018-06-25 09:26:20,148 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-25 09:26:20,148 INFO ]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-06-25 09:26:20,148 INFO ]: Start difference. First operand 22 states and 27 transitions. Second operand 10 states. [2018-06-25 09:26:20,602 WARN ]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-06-25 09:26:20,745 WARN ]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-06-25 09:26:21,331 WARN ]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-06-25 09:26:21,568 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:26:21,568 INFO ]: Finished difference Result 31 states and 41 transitions. [2018-06-25 09:26:21,568 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-25 09:26:21,568 INFO ]: Start accepts. Automaton has 10 states. Word has length 17 [2018-06-25 09:26:21,568 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:26:21,569 INFO ]: With dead ends: 31 [2018-06-25 09:26:21,569 INFO ]: Without dead ends: 30 [2018-06-25 09:26:21,570 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-06-25 09:26:21,570 INFO ]: Start minimizeSevpa. Operand 30 states. [2018-06-25 09:26:21,574 INFO ]: Finished minimizeSevpa. Reduced states from 30 to 26. [2018-06-25 09:26:21,574 INFO ]: Start removeUnreachable. Operand 26 states. [2018-06-25 09:26:21,574 INFO ]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2018-06-25 09:26:21,575 INFO ]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 17 [2018-06-25 09:26:21,575 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:26:21,575 INFO ]: Abstraction has 26 states and 32 transitions. [2018-06-25 09:26:21,575 INFO ]: Interpolant automaton has 10 states. [2018-06-25 09:26:21,575 INFO ]: Start isEmpty. Operand 26 states and 32 transitions. [2018-06-25 09:26:21,576 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-25 09:26:21,576 INFO ]: Found error trace [2018-06-25 09:26:21,576 INFO ]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-06-25 09:26:21,576 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:26:21,576 INFO ]: Analyzing trace with hash 868582905, now seen corresponding path program 2 times [2018-06-25 09:26:21,576 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:26:21,576 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:26:21,577 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:26:21,577 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:26:21,577 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:26:21,608 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:26:21,721 INFO ]: Checked inductivity of 20 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-25 09:26:21,721 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 09:26:21,721 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 [2018-06-25 09:26:21,729 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 09:26:21,766 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 09:26:21,766 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:26:21,772 INFO ]: Computing forward predicates... [2018-06-25 09:26:21,917 INFO ]: Checked inductivity of 20 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-25 09:26:21,947 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 09:26:21,947 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2018-06-25 09:26:21,948 INFO ]: Interpolant automaton has 13 states [2018-06-25 09:26:21,948 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-25 09:26:21,948 INFO ]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-06-25 09:26:21,948 INFO ]: Start difference. First operand 26 states and 32 transitions. Second operand 13 states. [2018-06-25 09:26:22,536 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:26:22,536 INFO ]: Finished difference Result 24 states and 29 transitions. [2018-06-25 09:26:22,538 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-06-25 09:26:22,538 INFO ]: Start accepts. Automaton has 13 states. Word has length 25 [2018-06-25 09:26:22,538 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:26:22,538 INFO ]: With dead ends: 24 [2018-06-25 09:26:22,538 INFO ]: Without dead ends: 0 [2018-06-25 09:26:22,539 INFO ]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2018-06-25 09:26:22,539 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-25 09:26:22,539 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-25 09:26:22,539 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-25 09:26:22,539 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-25 09:26:22,539 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-06-25 09:26:22,539 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:26:22,539 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-25 09:26:22,539 INFO ]: Interpolant automaton has 13 states. [2018-06-25 09:26:22,539 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-25 09:26:22,539 INFO ]: Finished isEmpty. No accepting run. [2018-06-25 09:26:22,543 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 09:26:22 BoogieIcfgContainer [2018-06-25 09:26:22,543 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 09:26:22,543 INFO ]: Toolchain (without parser) took 4425.02 ms. Allocated memory was 308.8 MB in the beginning and 337.1 MB in the end (delta: 28.3 MB). Free memory was 265.2 MB in the beginning and 312.5 MB in the end (delta: -47.3 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:26:22,544 INFO ]: SmtParser took 0.10 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. [2018-06-25 09:26:22,545 INFO ]: ChcToBoogie took 61.61 ms. Allocated memory is still 308.8 MB. Free memory was 264.2 MB in the beginning and 262.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:26:22,545 INFO ]: Boogie Preprocessor took 43.23 ms. Allocated memory is still 308.8 MB. Free memory was 262.2 MB in the beginning and 261.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:26:22,546 INFO ]: RCFGBuilder took 368.62 ms. Allocated memory is still 308.8 MB. Free memory was 261.2 MB in the beginning and 252.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:26:22,546 INFO ]: TraceAbstraction took 3943.43 ms. Allocated memory was 308.8 MB in the beginning and 337.1 MB in the end (delta: 28.3 MB). Free memory was 252.1 MB in the beginning and 312.5 MB in the end (delta: -60.3 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:26:22,549 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.10 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 61.61 ms. Allocated memory is still 308.8 MB. Free memory was 264.2 MB in the beginning and 262.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 43.23 ms. Allocated memory is still 308.8 MB. Free memory was 262.2 MB in the beginning and 261.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 368.62 ms. Allocated memory is still 308.8 MB. Free memory was 261.2 MB in the beginning and 252.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3943.43 ms. Allocated memory was 308.8 MB in the beginning and 337.1 MB in the end (delta: 28.3 MB). Free memory was 252.1 MB in the beginning and 312.5 MB in the end (delta: -60.3 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, 14 locations, 1 error locations. SAFE Result, 3.8s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 119 SDslu, 183 SDs, 0 SdLazy, 199 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 7705 SizeOfPredicates, 16 NumberOfNonLiveVariables, 202 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 41/52 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/enc-zip4.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_09-26-22-560.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/enc-zip4.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_09-26-22-560.csv Received shutdown request...