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/bsearch.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 09:23:33,058 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 09:23:33,060 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 09:23:33,072 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 09:23:33,072 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 09:23:33,073 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 09:23:33,075 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 09:23:33,077 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 09:23:33,078 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 09:23:33,079 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 09:23:33,080 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 09:23:33,080 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 09:23:33,081 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 09:23:33,084 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 09:23:33,084 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 09:23:33,085 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 09:23:33,086 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 09:23:33,088 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 09:23:33,096 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 09:23:33,097 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 09:23:33,098 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 09:23:33,101 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 09:23:33,102 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 09:23:33,102 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 09:23:33,103 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 09:23:33,104 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 09:23:33,104 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 09:23:33,108 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 09:23:33,109 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 09:23:33,109 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 09:23:33,109 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 09:23:33,110 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 09:23:33,110 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 09:23:33,112 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 09:23:33,113 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 09:23:33,113 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 09:23:33,127 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 09:23:33,127 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 09:23:33,127 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 09:23:33,127 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 09:23:33,128 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 09:23:33,129 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 09:23:33,129 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 09:23:33,129 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 09:23:33,129 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 09:23:33,129 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 09:23:33,129 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 09:23:33,130 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 09:23:33,130 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 09:23:33,130 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 09:23:33,130 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 09:23:33,130 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 09:23:33,131 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 09:23:33,131 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 09:23:33,131 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 09:23:33,131 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 09:23:33,131 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 09:23:33,132 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 09:23:33,133 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 09:23:33,184 INFO ]: Repository-Root is: /tmp [2018-06-25 09:23:33,205 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 09:23:33,212 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 09:23:33,214 INFO ]: Initializing SmtParser... [2018-06-25 09:23:33,214 INFO ]: SmtParser initialized [2018-06-25 09:23:33,215 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/bsearch.smt2 [2018-06-25 09:23:33,216 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 09:23:33,310 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/bsearch.smt2 unknown [2018-06-25 09:23:33,627 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/bsearch.smt2 [2018-06-25 09:23:33,632 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 09:23:33,642 INFO ]: Walking toolchain with 4 elements. [2018-06-25 09:23:33,643 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 09:23:33,643 INFO ]: Initializing ChcToBoogie... [2018-06-25 09:23:33,643 INFO ]: ChcToBoogie initialized [2018-06-25 09:23:33,646 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:23:33" (1/1) ... [2018-06-25 09:23:33,711 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:23:33 Unit [2018-06-25 09:23:33,712 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 09:23:33,712 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 09:23:33,712 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 09:23:33,712 INFO ]: Boogie Preprocessor initialized [2018-06-25 09:23:33,727 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:23:33" (1/1) ... [2018-06-25 09:23:33,727 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:23:33" (1/1) ... [2018-06-25 09:23:33,732 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:23:33" (1/1) ... [2018-06-25 09:23:33,732 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:23:33" (1/1) ... [2018-06-25 09:23:33,736 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:23:33" (1/1) ... [2018-06-25 09:23:33,739 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:23:33" (1/1) ... [2018-06-25 09:23:33,740 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:23:33" (1/1) ... [2018-06-25 09:23:33,742 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 09:23:33,743 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 09:23:33,743 INFO ]: Initializing RCFGBuilder... [2018-06-25 09:23:33,743 INFO ]: RCFGBuilder initialized [2018-06-25 09:23:33,744 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:23:33" (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) [2018-06-25 09:23:33,758 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 09:23:33,758 INFO ]: Found specification of procedure gotoProc [2018-06-25 09:23:33,758 INFO ]: Found implementation of procedure gotoProc [2018-06-25 09:23:33,758 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 09:23:33,758 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 09:23:33,758 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 09:23:34,150 INFO ]: Using library mode [2018-06-25 09:23:34,151 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:23:34 BoogieIcfgContainer [2018-06-25 09:23:34,151 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 09:23:34,152 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 09:23:34,152 INFO ]: Initializing TraceAbstraction... [2018-06-25 09:23:34,155 INFO ]: TraceAbstraction initialized [2018-06-25 09:23:34,155 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:23:33" (1/3) ... [2018-06-25 09:23:34,156 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17598e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 09:23:34, skipping insertion in model container [2018-06-25 09:23:34,156 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:23:33" (2/3) ... [2018-06-25 09:23:34,156 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17598e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 09:23:34, skipping insertion in model container [2018-06-25 09:23:34,156 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:23:34" (3/3) ... [2018-06-25 09:23:34,157 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 09:23:34,164 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 09:23:34,170 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 09:23:34,204 INFO ]: Using default assertion order modulation [2018-06-25 09:23:34,205 INFO ]: Interprodecural is true [2018-06-25 09:23:34,205 INFO ]: Hoare is false [2018-06-25 09:23:34,205 INFO ]: Compute interpolants for FPandBP [2018-06-25 09:23:34,205 INFO ]: Backedges is TWOTRACK [2018-06-25 09:23:34,205 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 09:23:34,205 INFO ]: Difference is false [2018-06-25 09:23:34,205 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 09:23:34,205 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 09:23:34,217 INFO ]: Start isEmpty. Operand 27 states. [2018-06-25 09:23:34,227 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 09:23:34,227 INFO ]: Found error trace [2018-06-25 09:23:34,228 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:23:34,228 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:23:34,232 INFO ]: Analyzing trace with hash 192824315, now seen corresponding path program 1 times [2018-06-25 09:23:34,234 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:23:34,234 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:23:34,265 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:34,266 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:23:34,266 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:34,295 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:23:34,360 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:23:34,362 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:23:34,362 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 09:23:34,363 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:23:34,374 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:23:34,374 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:23:34,376 INFO ]: Start difference. First operand 27 states. Second operand 4 states. [2018-06-25 09:23:34,756 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:23:34,756 INFO ]: Finished difference Result 46 states and 62 transitions. [2018-06-25 09:23:34,756 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:23:34,757 INFO ]: Start accepts. Automaton has 4 states. Word has length 7 [2018-06-25 09:23:34,758 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:23:34,767 INFO ]: With dead ends: 46 [2018-06-25 09:23:34,767 INFO ]: Without dead ends: 44 [2018-06-25 09:23:34,769 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 [2018-06-25 09:23:34,784 INFO ]: Start minimizeSevpa. Operand 44 states. [2018-06-25 09:23:34,817 INFO ]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-06-25 09:23:34,819 INFO ]: Start removeUnreachable. Operand 44 states. [2018-06-25 09:23:34,823 INFO ]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2018-06-25 09:23:34,827 INFO ]: Start accepts. Automaton has 44 states and 60 transitions. Word has length 7 [2018-06-25 09:23:34,827 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:23:34,827 INFO ]: Abstraction has 44 states and 60 transitions. [2018-06-25 09:23:34,827 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:23:34,827 INFO ]: Start isEmpty. Operand 44 states and 60 transitions. [2018-06-25 09:23:34,828 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 09:23:34,828 INFO ]: Found error trace [2018-06-25 09:23:34,828 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:23:34,829 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:23:34,829 INFO ]: Analyzing trace with hash 1700924698, now seen corresponding path program 1 times [2018-06-25 09:23:34,829 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:23:34,829 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:23:34,830 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:34,830 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:23:34,830 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:34,835 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:23:34,945 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:23:34,946 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:23:34,946 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 09:23:34,947 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:23:34,947 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:23:34,947 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:23:34,947 INFO ]: Start difference. First operand 44 states and 60 transitions. Second operand 4 states. [2018-06-25 09:23:35,352 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:23:35,353 INFO ]: Finished difference Result 64 states and 88 transitions. [2018-06-25 09:23:35,353 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:23:35,353 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-25 09:23:35,353 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:23:35,355 INFO ]: With dead ends: 64 [2018-06-25 09:23:35,355 INFO ]: Without dead ends: 64 [2018-06-25 09:23:35,356 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 09:23:35,356 INFO ]: Start minimizeSevpa. Operand 64 states. [2018-06-25 09:23:35,370 INFO ]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-06-25 09:23:35,370 INFO ]: Start removeUnreachable. Operand 64 states. [2018-06-25 09:23:35,373 INFO ]: Finished removeUnreachable. Reduced from 64 states to 64 states and 88 transitions. [2018-06-25 09:23:35,373 INFO ]: Start accepts. Automaton has 64 states and 88 transitions. Word has length 8 [2018-06-25 09:23:35,373 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:23:35,373 INFO ]: Abstraction has 64 states and 88 transitions. [2018-06-25 09:23:35,374 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:23:35,374 INFO ]: Start isEmpty. Operand 64 states and 88 transitions. [2018-06-25 09:23:35,377 INFO ]: Finished isEmpty. Found accepting run of length 27 [2018-06-25 09:23:35,377 INFO ]: Found error trace [2018-06-25 09:23:35,377 INFO ]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:23:35,377 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:23:35,377 INFO ]: Analyzing trace with hash 2028594122, now seen corresponding path program 1 times [2018-06-25 09:23:35,377 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:23:35,377 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:23:35,378 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:35,378 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:23:35,378 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:35,386 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:23:35,442 INFO ]: Checked inductivity of 14 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-25 09:23:35,442 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 09:23:35,442 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 09:23:35,453 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:23:35,496 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:23:35,505 INFO ]: Computing forward predicates... [2018-06-25 09:23:35,536 INFO ]: Checked inductivity of 14 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-25 09:23:35,569 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 09:23:35,569 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-25 09:23:35,569 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:23:35,569 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:23:35,569 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:23:35,570 INFO ]: Start difference. First operand 64 states and 88 transitions. Second operand 4 states. [2018-06-25 09:23:35,989 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:23:35,989 INFO ]: Finished difference Result 84 states and 116 transitions. [2018-06-25 09:23:35,990 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:23:35,990 INFO ]: Start accepts. Automaton has 4 states. Word has length 26 [2018-06-25 09:23:35,990 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:23:35,993 INFO ]: With dead ends: 84 [2018-06-25 09:23:35,993 INFO ]: Without dead ends: 84 [2018-06-25 09:23:35,993 INFO ]: 0 DeclaredPredicates, 31 GetRequests, 28 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 09:23:35,993 INFO ]: Start minimizeSevpa. Operand 84 states. [2018-06-25 09:23:36,004 INFO ]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-06-25 09:23:36,005 INFO ]: Start removeUnreachable. Operand 84 states. [2018-06-25 09:23:36,007 INFO ]: Finished removeUnreachable. Reduced from 84 states to 84 states and 116 transitions. [2018-06-25 09:23:36,007 INFO ]: Start accepts. Automaton has 84 states and 116 transitions. Word has length 26 [2018-06-25 09:23:36,007 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:23:36,007 INFO ]: Abstraction has 84 states and 116 transitions. [2018-06-25 09:23:36,007 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:23:36,007 INFO ]: Start isEmpty. Operand 84 states and 116 transitions. [2018-06-25 09:23:36,018 INFO ]: Finished isEmpty. Found accepting run of length 29 [2018-06-25 09:23:36,018 INFO ]: Found error trace [2018-06-25 09:23:36,018 INFO ]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:23:36,018 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:23:36,018 INFO ]: Analyzing trace with hash 2046622885, now seen corresponding path program 1 times [2018-06-25 09:23:36,018 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:23:36,018 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:23:36,019 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:36,019 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:23:36,019 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:36,055 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:23:36,487 INFO ]: Checked inductivity of 14 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-25 09:23:36,487 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 09:23:36,488 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 09:23:36,506 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:23:36,545 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:23:36,549 INFO ]: Computing forward predicates... [2018-06-25 09:23:37,075 INFO ]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-25 09:23:37,100 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-25 09:23:37,100 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2018-06-25 09:23:37,100 INFO ]: Interpolant automaton has 10 states [2018-06-25 09:23:37,100 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-25 09:23:37,100 INFO ]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-06-25 09:23:37,101 INFO ]: Start difference. First operand 84 states and 116 transitions. Second operand 10 states. [2018-06-25 09:23:37,617 WARN ]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-06-25 09:23:39,469 WARN ]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-06-25 09:23:39,673 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:23:39,673 INFO ]: Finished difference Result 169 states and 266 transitions. [2018-06-25 09:23:39,673 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-25 09:23:39,673 INFO ]: Start accepts. Automaton has 10 states. Word has length 28 [2018-06-25 09:23:39,674 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:23:39,680 INFO ]: With dead ends: 169 [2018-06-25 09:23:39,680 INFO ]: Without dead ends: 150 [2018-06-25 09:23:39,680 INFO ]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2018-06-25 09:23:39,680 INFO ]: Start minimizeSevpa. Operand 150 states. [2018-06-25 09:23:39,712 INFO ]: Finished minimizeSevpa. Reduced states from 150 to 98. [2018-06-25 09:23:39,712 INFO ]: Start removeUnreachable. Operand 98 states. [2018-06-25 09:23:39,714 INFO ]: Finished removeUnreachable. Reduced from 98 states to 98 states and 142 transitions. [2018-06-25 09:23:39,714 INFO ]: Start accepts. Automaton has 98 states and 142 transitions. Word has length 28 [2018-06-25 09:23:39,715 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:23:39,715 INFO ]: Abstraction has 98 states and 142 transitions. [2018-06-25 09:23:39,715 INFO ]: Interpolant automaton has 10 states. [2018-06-25 09:23:39,715 INFO ]: Start isEmpty. Operand 98 states and 142 transitions. [2018-06-25 09:23:39,718 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-25 09:23:39,718 INFO ]: Found error trace [2018-06-25 09:23:39,718 INFO ]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:23:39,718 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:23:39,718 INFO ]: Analyzing trace with hash -678903946, now seen corresponding path program 1 times [2018-06-25 09:23:39,718 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:23:39,718 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:23:39,719 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:39,719 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:23:39,719 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:39,738 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:23:39,772 INFO ]: Checked inductivity of 18 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-25 09:23:39,773 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 09:23:39,773 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 [2018-06-25 09:23:39,788 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:23:39,808 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:23:39,810 INFO ]: Computing forward predicates... [2018-06-25 09:23:39,814 INFO ]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-25 09:23:39,847 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-25 09:23:39,847 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2018-06-25 09:23:39,847 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:23:39,847 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:23:39,847 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:23:39,848 INFO ]: Start difference. First operand 98 states and 142 transitions. Second operand 4 states. [2018-06-25 09:23:40,084 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:23:40,084 INFO ]: Finished difference Result 116 states and 165 transitions. [2018-06-25 09:23:40,084 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:23:40,084 INFO ]: Start accepts. Automaton has 4 states. Word has length 29 [2018-06-25 09:23:40,085 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:23:40,086 INFO ]: With dead ends: 116 [2018-06-25 09:23:40,086 INFO ]: Without dead ends: 98 [2018-06-25 09:23:40,086 INFO ]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 09:23:40,087 INFO ]: Start minimizeSevpa. Operand 98 states. [2018-06-25 09:23:40,096 INFO ]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-06-25 09:23:40,096 INFO ]: Start removeUnreachable. Operand 98 states. [2018-06-25 09:23:40,098 INFO ]: Finished removeUnreachable. Reduced from 98 states to 98 states and 138 transitions. [2018-06-25 09:23:40,098 INFO ]: Start accepts. Automaton has 98 states and 138 transitions. Word has length 29 [2018-06-25 09:23:40,098 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:23:40,098 INFO ]: Abstraction has 98 states and 138 transitions. [2018-06-25 09:23:40,098 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:23:40,098 INFO ]: Start isEmpty. Operand 98 states and 138 transitions. [2018-06-25 09:23:40,102 INFO ]: Finished isEmpty. Found accepting run of length 58 [2018-06-25 09:23:40,102 INFO ]: Found error trace [2018-06-25 09:23:40,102 INFO ]: trace histogram [6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:23:40,102 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:23:40,102 INFO ]: Analyzing trace with hash -884023089, now seen corresponding path program 1 times [2018-06-25 09:23:40,102 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:23:40,102 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:23:40,103 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:40,103 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:23:40,103 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:40,138 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:23:40,386 INFO ]: Checked inductivity of 83 backedges. 27 proven. 5 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-06-25 09:23:40,386 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 09:23:40,386 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 [2018-06-25 09:23:40,401 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:23:40,449 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:23:40,456 INFO ]: Computing forward predicates... [2018-06-25 09:23:40,535 INFO ]: Checked inductivity of 83 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-06-25 09:23:40,557 INFO ]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-06-25 09:23:40,557 INFO ]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 14 [2018-06-25 09:23:40,557 INFO ]: Interpolant automaton has 14 states [2018-06-25 09:23:40,557 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-25 09:23:40,557 INFO ]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2018-06-25 09:23:40,558 INFO ]: Start difference. First operand 98 states and 138 transitions. Second operand 14 states. [2018-06-25 09:23:41,376 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:23:41,376 INFO ]: Finished difference Result 179 states and 277 transitions. [2018-06-25 09:23:41,472 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-06-25 09:23:41,472 INFO ]: Start accepts. Automaton has 14 states. Word has length 57 [2018-06-25 09:23:41,472 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:23:41,476 INFO ]: With dead ends: 179 [2018-06-25 09:23:41,476 INFO ]: Without dead ends: 160 [2018-06-25 09:23:41,476 INFO ]: 0 DeclaredPredicates, 81 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2018-06-25 09:23:41,477 INFO ]: Start minimizeSevpa. Operand 160 states. [2018-06-25 09:23:41,514 INFO ]: Finished minimizeSevpa. Reduced states from 160 to 127. [2018-06-25 09:23:41,516 INFO ]: Start removeUnreachable. Operand 127 states. [2018-06-25 09:23:41,519 INFO ]: Finished removeUnreachable. Reduced from 127 states to 127 states and 190 transitions. [2018-06-25 09:23:41,519 INFO ]: Start accepts. Automaton has 127 states and 190 transitions. Word has length 57 [2018-06-25 09:23:41,519 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:23:41,519 INFO ]: Abstraction has 127 states and 190 transitions. [2018-06-25 09:23:41,519 INFO ]: Interpolant automaton has 14 states. [2018-06-25 09:23:41,519 INFO ]: Start isEmpty. Operand 127 states and 190 transitions. [2018-06-25 09:23:41,524 INFO ]: Finished isEmpty. Found accepting run of length 58 [2018-06-25 09:23:41,524 INFO ]: Found error trace [2018-06-25 09:23:41,524 INFO ]: trace histogram [6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:23:41,524 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:23:41,524 INFO ]: Analyzing trace with hash -1989180725, now seen corresponding path program 1 times [2018-06-25 09:23:41,524 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:23:41,524 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:23:41,525 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:41,525 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:23:41,525 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:23:41,559 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:23:41,723 INFO ]: Checked inductivity of 83 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-06-25 09:23:41,723 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 09:23:41,723 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 [2018-06-25 09:23:41,729 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:23:41,778 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:23:41,783 INFO ]: Computing forward predicates... [2018-06-25 09:23:42,030 INFO ]: Checked inductivity of 83 backedges. 53 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-06-25 09:23:42,050 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 09:23:42,050 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2018-06-25 09:23:42,050 INFO ]: Interpolant automaton has 17 states [2018-06-25 09:23:42,050 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-25 09:23:42,050 INFO ]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2018-06-25 09:23:42,051 INFO ]: Start difference. First operand 127 states and 190 transitions. Second operand 17 states. [2018-06-25 09:23:43,238 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:23:43,238 INFO ]: Finished difference Result 124 states and 173 transitions. [2018-06-25 09:23:43,240 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-06-25 09:23:43,240 INFO ]: Start accepts. Automaton has 17 states. Word has length 57 [2018-06-25 09:23:43,240 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:23:43,240 INFO ]: With dead ends: 124 [2018-06-25 09:23:43,240 INFO ]: Without dead ends: 0 [2018-06-25 09:23:43,240 INFO ]: 0 DeclaredPredicates, 84 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=166, Invalid=826, Unknown=0, NotChecked=0, Total=992 [2018-06-25 09:23:43,240 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-25 09:23:43,240 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-25 09:23:43,240 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-25 09:23:43,240 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-25 09:23:43,240 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2018-06-25 09:23:43,241 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:23:43,241 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-25 09:23:43,241 INFO ]: Interpolant automaton has 17 states. [2018-06-25 09:23:43,241 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-25 09:23:43,241 INFO ]: Finished isEmpty. No accepting run. [2018-06-25 09:23:43,244 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 09:23:43 BoogieIcfgContainer [2018-06-25 09:23:43,244 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 09:23:43,245 INFO ]: Toolchain (without parser) took 9612.83 ms. Allocated memory was 307.2 MB in the beginning and 381.7 MB in the end (delta: 74.4 MB). Free memory was 255.6 MB in the beginning and 349.7 MB in the end (delta: -94.1 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:23:43,246 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 307.2 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:23:43,246 INFO ]: ChcToBoogie took 68.91 ms. Allocated memory is still 307.2 MB. Free memory was 255.6 MB in the beginning and 252.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:23:43,247 INFO ]: Boogie Preprocessor took 30.15 ms. Allocated memory is still 307.2 MB. Free memory was 252.7 MB in the beginning and 251.7 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-25 09:23:43,247 INFO ]: RCFGBuilder took 408.24 ms. Allocated memory is still 307.2 MB. Free memory was 251.7 MB in the beginning and 238.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:23:43,248 INFO ]: TraceAbstraction took 9092.08 ms. Allocated memory was 307.2 MB in the beginning and 381.7 MB in the end (delta: 74.4 MB). Free memory was 238.6 MB in the beginning and 349.7 MB in the end (delta: -111.1 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:23:43,250 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 307.2 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 68.91 ms. Allocated memory is still 307.2 MB. Free memory was 255.6 MB in the beginning and 252.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 30.15 ms. Allocated memory is still 307.2 MB. Free memory was 252.7 MB in the beginning and 251.7 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 408.24 ms. Allocated memory is still 307.2 MB. Free memory was 251.7 MB in the beginning and 238.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 9092.08 ms. Allocated memory was 307.2 MB in the beginning and 381.7 MB in the end (delta: 74.4 MB). Free memory was 238.6 MB in the beginning and 349.7 MB in the end (delta: -111.1 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, 27 locations, 1 error locations. SAFE Result, 9.0s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 6.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 263 SDtfs, 344 SDslu, 627 SDs, 0 SdLazy, 1148 SolverSat, 199 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 197 SyntacticMatches, 4 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 85 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 409 NumberOfCodeBlocks, 409 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 397 ConstructedInterpolants, 4 QuantifiedInterpolants, 40350 SizeOfPredicates, 31 NumberOfNonLiveVariables, 848 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 386/424 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/bsearch.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_09-23-43-260.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bsearch.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_09-23-43-260.csv Received shutdown request...