java -Xss1g -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/termination/x_plus_2_pow_n04.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:58:51,751 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:58:51,754 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:58:51,768 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:58:51,768 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:58:51,769 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:58:51,773 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:58:51,775 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:58:51,777 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:58:51,777 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:58:51,779 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:58:51,780 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:58:51,781 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:58:51,782 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:58:51,784 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:58:51,785 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:58:51,794 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:58:51,796 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:58:51,798 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:58:51,799 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:58:51,800 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:58:51,802 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:58:51,803 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:58:51,803 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:58:51,804 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:58:51,805 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:58:51,805 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:58:51,806 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:58:51,807 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:58:51,807 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:58:51,808 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:58:51,808 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:58:51,809 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:58:51,809 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:58:51,810 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:58:51,810 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:58:51,828 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:58:51,829 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:58:51,829 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:58:51,829 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:58:51,830 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:58:51,830 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:58:51,831 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:58:51,832 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:58:51,832 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:58:51,832 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:58:51,832 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:58:51,832 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:58:51,833 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:58:51,833 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:58:51,833 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:58:51,833 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:58:51,833 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:58:51,836 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:58:51,836 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:58:51,887 INFO ]: Repository-Root is: /tmp [2018-06-22 01:58:51,905 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:58:51,911 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:58:51,912 INFO ]: Initializing SmtParser... [2018-06-22 01:58:51,912 INFO ]: SmtParser initialized [2018-06-22 01:58:51,913 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/x_plus_2_pow_n04.smt2 [2018-06-22 01:58:51,914 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 [2018-06-22 01:58:52,003 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/x_plus_2_pow_n04.smt2 unknown [2018-06-22 01:58:52,429 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/x_plus_2_pow_n04.smt2 [2018-06-22 01:58:52,436 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:58:52,444 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:58:52,445 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:58:52,445 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:58:52,445 INFO ]: ChcToBoogie initialized [2018-06-22 01:58:52,449 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:58:52" (1/1) ... [2018-06-22 01:58:52,515 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:58:52 Unit [2018-06-22 01:58:52,515 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:58:52,516 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:58:52,516 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:58:52,516 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:58:52,538 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:58:52" (1/1) ... [2018-06-22 01:58:52,538 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:58:52" (1/1) ... [2018-06-22 01:58:52,545 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:58:52" (1/1) ... [2018-06-22 01:58:52,545 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:58:52" (1/1) ... [2018-06-22 01:58:52,558 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:58:52" (1/1) ... [2018-06-22 01:58:52,570 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:58:52" (1/1) ... [2018-06-22 01:58:52,572 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:58:52" (1/1) ... [2018-06-22 01:58:52,574 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:58:52,574 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:58:52,574 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:58:52,574 INFO ]: RCFGBuilder initialized [2018-06-22 01:58:52,575 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:58:52" (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) [2018-06-22 01:58:52,595 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:58:52,595 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:58:52,595 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:58:52,595 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:58:52,595 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:58:52,595 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 [2018-06-22 01:58:53,116 INFO ]: Using library mode [2018-06-22 01:58:53,116 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:58:53 BoogieIcfgContainer [2018-06-22 01:58:53,117 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:58:53,118 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:58:53,118 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:58:53,121 INFO ]: TraceAbstraction initialized [2018-06-22 01:58:53,121 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:58:52" (1/3) ... [2018-06-22 01:58:53,122 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efdffd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:58:53, skipping insertion in model container [2018-06-22 01:58:53,122 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:58:52" (2/3) ... [2018-06-22 01:58:53,123 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6efdffd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:58:53, skipping insertion in model container [2018-06-22 01:58:53,123 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:58:53" (3/3) ... [2018-06-22 01:58:53,124 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:58:53,132 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:58:53,141 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:58:53,198 INFO ]: Using default assertion order modulation [2018-06-22 01:58:53,199 INFO ]: Interprodecural is true [2018-06-22 01:58:53,199 INFO ]: Hoare is false [2018-06-22 01:58:53,199 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:58:53,199 INFO ]: Backedges is TWOTRACK [2018-06-22 01:58:53,199 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:58:53,199 INFO ]: Difference is false [2018-06-22 01:58:53,199 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:58:53,199 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:58:53,226 INFO ]: Start isEmpty. Operand 23 states. [2018-06-22 01:58:53,239 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 01:58:53,239 INFO ]: Found error trace [2018-06-22 01:58:53,241 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:58:53,242 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:58:53,247 INFO ]: Analyzing trace with hash -1881350011, now seen corresponding path program 1 times [2018-06-22 01:58:53,249 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:58:53,250 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:58:53,293 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:58:53,293 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:58:53,293 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:58:53,318 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:58:53,354 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:58:53,358 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:58:53,358 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 01:58:53,360 INFO ]: Interpolant automaton has 2 states [2018-06-22 01:58:53,374 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 01:58:53,374 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:58:53,377 INFO ]: Start difference. First operand 23 states. Second operand 2 states. [2018-06-22 01:58:53,409 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:58:53,409 INFO ]: Finished difference Result 21 states and 28 transitions. [2018-06-22 01:58:53,409 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 01:58:53,411 INFO ]: Start accepts. Automaton has 2 states. Word has length 7 [2018-06-22 01:58:53,412 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:58:53,422 INFO ]: With dead ends: 21 [2018-06-22 01:58:53,422 INFO ]: Without dead ends: 16 [2018-06-22 01:58:53,424 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 [2018-06-22 01:58:53,442 INFO ]: Start minimizeSevpa. Operand 16 states. [2018-06-22 01:58:53,467 INFO ]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-06-22 01:58:53,469 INFO ]: Start removeUnreachable. Operand 16 states. [2018-06-22 01:58:53,470 INFO ]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2018-06-22 01:58:53,471 INFO ]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 7 [2018-06-22 01:58:53,471 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:58:53,471 INFO ]: Abstraction has 16 states and 20 transitions. [2018-06-22 01:58:53,471 INFO ]: Interpolant automaton has 2 states. [2018-06-22 01:58:53,471 INFO ]: Start isEmpty. Operand 16 states and 20 transitions. [2018-06-22 01:58:53,473 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 01:58:53,473 INFO ]: Found error trace [2018-06-22 01:58:53,473 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:58:53,473 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:58:53,473 INFO ]: Analyzing trace with hash 1694504767, now seen corresponding path program 1 times [2018-06-22 01:58:53,473 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:58:53,473 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:58:53,474 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:58:53,474 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:58:53,474 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:58:53,482 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:58:53,550 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:58:53,550 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:58:53,550 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:58:53,552 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:58:53,552 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:58:53,552 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:58:53,553 INFO ]: Start difference. First operand 16 states and 20 transitions. Second operand 4 states. [2018-06-22 01:58:53,814 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:58:53,814 INFO ]: Finished difference Result 29 states and 37 transitions. [2018-06-22 01:58:53,815 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:58:53,815 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 01:58:53,815 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:58:53,816 INFO ]: With dead ends: 29 [2018-06-22 01:58:53,816 INFO ]: Without dead ends: 29 [2018-06-22 01:58:53,817 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:58:53,817 INFO ]: Start minimizeSevpa. Operand 29 states. [2018-06-22 01:58:53,822 INFO ]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-06-22 01:58:53,822 INFO ]: Start removeUnreachable. Operand 29 states. [2018-06-22 01:58:53,823 INFO ]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2018-06-22 01:58:53,823 INFO ]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 8 [2018-06-22 01:58:53,825 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:58:53,825 INFO ]: Abstraction has 29 states and 37 transitions. [2018-06-22 01:58:53,825 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:58:53,825 INFO ]: Start isEmpty. Operand 29 states and 37 transitions. [2018-06-22 01:58:53,825 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 01:58:53,825 INFO ]: Found error trace [2018-06-22 01:58:53,825 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:58:53,825 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:58:53,826 INFO ]: Analyzing trace with hash 2005951612, now seen corresponding path program 1 times [2018-06-22 01:58:53,826 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:58:53,826 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:58:53,826 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:58:53,826 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:58:53,826 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:58:53,836 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:58:53,982 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:58:53,982 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:58:53,982 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:58:53,982 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:58:53,982 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:58:53,982 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:58:53,983 INFO ]: Start difference. First operand 29 states and 37 transitions. Second operand 4 states. [2018-06-22 01:58:54,319 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:58:54,319 INFO ]: Finished difference Result 36 states and 46 transitions. [2018-06-22 01:58:54,321 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:58:54,321 INFO ]: Start accepts. Automaton has 4 states. Word has length 10 [2018-06-22 01:58:54,321 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:58:54,322 INFO ]: With dead ends: 36 [2018-06-22 01:58:54,322 INFO ]: Without dead ends: 29 [2018-06-22 01:58:54,322 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 [2018-06-22 01:58:54,323 INFO ]: Start minimizeSevpa. Operand 29 states. [2018-06-22 01:58:54,328 INFO ]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-06-22 01:58:54,328 INFO ]: Start removeUnreachable. Operand 29 states. [2018-06-22 01:58:54,330 INFO ]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2018-06-22 01:58:54,330 INFO ]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 10 [2018-06-22 01:58:54,330 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:58:54,330 INFO ]: Abstraction has 29 states and 36 transitions. [2018-06-22 01:58:54,330 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:58:54,330 INFO ]: Start isEmpty. Operand 29 states and 36 transitions. [2018-06-22 01:58:54,331 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 01:58:54,331 INFO ]: Found error trace [2018-06-22 01:58:54,331 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:58:54,331 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:58:54,331 INFO ]: Analyzing trace with hash -681559346, now seen corresponding path program 1 times [2018-06-22 01:58:54,331 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:58:54,331 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:58:54,334 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:58:54,334 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:58:54,334 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:58:54,381 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:58:54,497 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:58:54,498 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:58:54,498 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:58:54,498 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:58:54,498 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:58:54,498 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:58:54,498 INFO ]: Start difference. First operand 29 states and 36 transitions. Second operand 4 states. [2018-06-22 01:58:54,693 WARN ]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-06-22 01:58:54,768 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:58:54,768 INFO ]: Finished difference Result 41 states and 52 transitions. [2018-06-22 01:58:54,768 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:58:54,768 INFO ]: Start accepts. Automaton has 4 states. Word has length 12 [2018-06-22 01:58:54,769 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:58:54,770 INFO ]: With dead ends: 41 [2018-06-22 01:58:54,770 INFO ]: Without dead ends: 41 [2018-06-22 01:58:54,770 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 [2018-06-22 01:58:54,770 INFO ]: Start minimizeSevpa. Operand 41 states. [2018-06-22 01:58:54,780 INFO ]: Finished minimizeSevpa. Reduced states from 41 to 33. [2018-06-22 01:58:54,780 INFO ]: Start removeUnreachable. Operand 33 states. [2018-06-22 01:58:54,781 INFO ]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2018-06-22 01:58:54,781 INFO ]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 12 [2018-06-22 01:58:54,781 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:58:54,781 INFO ]: Abstraction has 33 states and 40 transitions. [2018-06-22 01:58:54,781 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:58:54,781 INFO ]: Start isEmpty. Operand 33 states and 40 transitions. [2018-06-22 01:58:54,782 INFO ]: Finished isEmpty. Found accepting run of length 24 [2018-06-22 01:58:54,782 INFO ]: Found error trace [2018-06-22 01:58:54,782 INFO ]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:58:54,782 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:58:54,783 INFO ]: Analyzing trace with hash -621546602, now seen corresponding path program 1 times [2018-06-22 01:58:54,783 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:58:54,783 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:58:54,783 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:58:54,784 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:58:54,784 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:58:54,808 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:58:54,880 INFO ]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 01:58:54,880 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:58:54,880 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 01:58:54,880 INFO ]: Interpolant automaton has 3 states [2018-06-22 01:58:54,880 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 01:58:54,880 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:58:54,880 INFO ]: Start difference. First operand 33 states and 40 transitions. Second operand 3 states. [2018-06-22 01:58:54,903 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:58:54,903 INFO ]: Finished difference Result 35 states and 40 transitions. [2018-06-22 01:58:54,903 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 01:58:54,903 INFO ]: Start accepts. Automaton has 3 states. Word has length 23 [2018-06-22 01:58:54,903 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:58:54,904 INFO ]: With dead ends: 35 [2018-06-22 01:58:54,904 INFO ]: Without dead ends: 33 [2018-06-22 01:58:54,904 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 [2018-06-22 01:58:54,904 INFO ]: Start minimizeSevpa. Operand 33 states. [2018-06-22 01:58:54,908 INFO ]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-06-22 01:58:54,908 INFO ]: Start removeUnreachable. Operand 33 states. [2018-06-22 01:58:54,909 INFO ]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-06-22 01:58:54,909 INFO ]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 23 [2018-06-22 01:58:54,909 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:58:54,909 INFO ]: Abstraction has 33 states and 38 transitions. [2018-06-22 01:58:54,909 INFO ]: Interpolant automaton has 3 states. [2018-06-22 01:58:54,909 INFO ]: Start isEmpty. Operand 33 states and 38 transitions. [2018-06-22 01:58:54,910 INFO ]: Finished isEmpty. Found accepting run of length 24 [2018-06-22 01:58:54,910 INFO ]: Found error trace [2018-06-22 01:58:54,910 INFO ]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:58:54,910 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:58:54,910 INFO ]: Analyzing trace with hash -363884243, now seen corresponding path program 1 times [2018-06-22 01:58:54,910 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:58:54,910 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:58:54,911 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:58:54,911 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:58:54,911 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:58:54,967 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:58:55,204 INFO ]: Checked inductivity of 9 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 01:58:55,204 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:58:55,204 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 [2018-06-22 01:58:55,226 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:58:55,284 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:58:55,292 INFO ]: Computing forward predicates... [2018-06-22 01:58:55,628 INFO ]: Checked inductivity of 9 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 01:58:55,668 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:58:55,669 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-06-22 01:58:55,669 INFO ]: Interpolant automaton has 6 states [2018-06-22 01:58:55,669 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 01:58:55,669 INFO ]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-06-22 01:58:55,669 INFO ]: Start difference. First operand 33 states and 38 transitions. Second operand 6 states. [2018-06-22 01:58:56,067 WARN ]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-06-22 01:58:56,068 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:58:56,068 INFO ]: Finished difference Result 30 states and 34 transitions. [2018-06-22 01:58:56,068 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:58:56,068 INFO ]: Start accepts. Automaton has 6 states. Word has length 23 [2018-06-22 01:58:56,069 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:58:56,069 INFO ]: With dead ends: 30 [2018-06-22 01:58:56,069 INFO ]: Without dead ends: 0 [2018-06-22 01:58:56,069 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-06-22 01:58:56,069 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:58:56,069 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:58:56,069 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:58:56,069 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:58:56,069 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-06-22 01:58:56,069 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:58:56,069 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:58:56,069 INFO ]: Interpolant automaton has 6 states. [2018-06-22 01:58:56,069 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:58:56,069 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:58:56,080 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:58:56 BoogieIcfgContainer [2018-06-22 01:58:56,080 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:58:56,081 INFO ]: Toolchain (without parser) took 3643.84 ms. Allocated memory was 303.0 MB in the beginning and 324.0 MB in the end (delta: 21.0 MB). Free memory was 247.5 MB in the beginning and 254.9 MB in the end (delta: -7.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 3.6 GB. [2018-06-22 01:58:56,087 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 303.0 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:58:56,087 INFO ]: ChcToBoogie took 70.37 ms. Allocated memory is still 303.0 MB. Free memory was 247.5 MB in the beginning and 244.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:58:56,088 INFO ]: Boogie Preprocessor took 57.63 ms. Allocated memory is still 303.0 MB. Free memory was 244.5 MB in the beginning and 243.5 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 01:58:56,088 INFO ]: RCFGBuilder took 542.39 ms. Allocated memory is still 303.0 MB. Free memory was 242.5 MB in the beginning and 225.4 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 3.6 GB. [2018-06-22 01:58:56,089 INFO ]: TraceAbstraction took 2962.01 ms. Allocated memory was 303.0 MB in the beginning and 324.0 MB in the end (delta: 21.0 MB). Free memory was 225.4 MB in the beginning and 254.9 MB in the end (delta: -29.5 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:58:56,099 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 303.0 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 70.37 ms. Allocated memory is still 303.0 MB. Free memory was 247.5 MB in the beginning and 244.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 57.63 ms. Allocated memory is still 303.0 MB. Free memory was 244.5 MB in the beginning and 243.5 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 542.39 ms. Allocated memory is still 303.0 MB. Free memory was 242.5 MB in the beginning and 225.4 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2962.01 ms. Allocated memory was 303.0 MB in the beginning and 324.0 MB in the end (delta: 21.0 MB). Free memory was 225.4 MB in the beginning and 254.9 MB in the end (delta: -29.5 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, 23 locations, 1 error locations. SAFE Result, 2.8s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 123 SDtfs, 74 SDslu, 115 SDs, 0 SdLazy, 79 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=4, 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, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 3200 SizeOfPredicates, 4 NumberOfNonLiveVariables, 183 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 25/27 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/x_plus_2_pow_n04.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-58-56-114.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/x_plus_2_pow_n04.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-58-56-114.csv Received shutdown request...