java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/reve/002-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:55:49,654 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:55:49,656 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:55:49,666 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:55:49,666 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:55:49,667 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:55:49,668 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:55:49,670 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:55:49,672 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:55:49,672 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:55:49,673 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:55:49,673 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:55:49,674 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:55:49,676 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:55:49,676 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:55:49,677 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:55:49,679 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:55:49,681 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:55:49,683 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:55:49,684 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:55:49,685 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:55:49,688 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:55:49,688 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:55:49,688 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:55:49,689 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:55:49,690 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:55:49,691 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:55:49,692 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:55:49,693 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:55:49,693 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:55:49,693 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:55:49,694 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:55:49,694 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:55:49,695 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:55:49,696 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:55:49,696 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:55:49,709 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:55:49,710 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:55:49,710 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:55:49,710 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:55:49,711 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:55:49,711 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:55:49,712 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:55:49,712 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:55:49,712 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:55:49,713 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:55:49,713 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:55:49,713 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:55:49,713 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:55:49,714 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:55:49,714 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:55:49,714 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:55:49,715 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:55:49,715 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:55:49,715 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:55:49,715 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:55:49,716 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:55:49,717 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:55:49,717 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:55:49,749 INFO ]: Repository-Root is: /tmp [2018-06-24 20:55:49,767 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:55:49,773 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:55:49,775 INFO ]: Initializing SmtParser... [2018-06-24 20:55:49,775 INFO ]: SmtParser initialized [2018-06-24 20:55:49,776 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/002-horn.smt2 [2018-06-24 20:55:49,777 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-24 20:55:49,863 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/002-horn.smt2 unknown [2018-06-24 20:55:50,080 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/002-horn.smt2 [2018-06-24 20:55:50,085 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:55:50,090 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:55:50,091 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:55:50,091 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:55:50,091 INFO ]: ChcToBoogie initialized [2018-06-24 20:55:50,094 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:55:50" (1/1) ... [2018-06-24 20:55:50,145 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:50 Unit [2018-06-24 20:55:50,145 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:55:50,146 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:55:50,146 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:55:50,146 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:55:50,166 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:50" (1/1) ... [2018-06-24 20:55:50,167 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:50" (1/1) ... [2018-06-24 20:55:50,174 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:50" (1/1) ... [2018-06-24 20:55:50,174 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:50" (1/1) ... [2018-06-24 20:55:50,180 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:50" (1/1) ... [2018-06-24 20:55:50,192 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:50" (1/1) ... [2018-06-24 20:55:50,194 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:50" (1/1) ... [2018-06-24 20:55:50,195 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:55:50,196 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:55:50,196 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:55:50,196 INFO ]: RCFGBuilder initialized [2018-06-24 20:55:50,197 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:50" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-24 20:55:50,225 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:55:50,225 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:55:50,226 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:55:50,226 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:55:50,226 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:55:50,226 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:55:50,527 INFO ]: Using library mode [2018-06-24 20:55:50,527 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:55:50 BoogieIcfgContainer [2018-06-24 20:55:50,527 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:55:50,527 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:55:50,527 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:55:50,528 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:55:50,529 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:55:50" (1/1) ... [2018-06-24 20:55:50,547 INFO ]: Initial Icfg 12 locations, 24 edges [2018-06-24 20:55:50,548 INFO ]: Using Remove infeasible edges [2018-06-24 20:55:50,549 INFO ]: Using Maximize final states [2018-06-24 20:55:50,549 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:55:50,549 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:55:50,553 INFO ]: Using Remove sink states [2018-06-24 20:55:50,554 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:55:50,554 INFO ]: Using Use SBE [2018-06-24 20:55:50,565 INFO ]: SBE split 0 edges [2018-06-24 20:55:50,581 INFO ]: Removed 6 edges and 2 locations because of local infeasibility [2018-06-24 20:55:50,583 INFO ]: 0 new accepting states [2018-06-24 20:55:50,683 INFO ]: Removed 9 edges and 2 locations by large block encoding [2018-06-24 20:55:50,685 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:55:50,687 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:55:50,687 INFO ]: 0 new accepting states [2018-06-24 20:55:50,687 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:55:50,687 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:55:50,687 INFO ]: Encoded RCFG 8 locations, 16 edges [2018-06-24 20:55:50,688 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:55:50 BasicIcfg [2018-06-24 20:55:50,688 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:55:50,689 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:55:50,689 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:55:50,692 INFO ]: TraceAbstraction initialized [2018-06-24 20:55:50,692 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:55:50" (1/4) ... [2018-06-24 20:55:50,693 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70aba79e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:55:50, skipping insertion in model container [2018-06-24 20:55:50,693 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:55:50" (2/4) ... [2018-06-24 20:55:50,693 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70aba79e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:55:50, skipping insertion in model container [2018-06-24 20:55:50,693 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:55:50" (3/4) ... [2018-06-24 20:55:50,693 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70aba79e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:55:50, skipping insertion in model container [2018-06-24 20:55:50,693 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:55:50" (4/4) ... [2018-06-24 20:55:50,697 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:55:50,709 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:55:50,718 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:55:50,757 INFO ]: Using default assertion order modulation [2018-06-24 20:55:50,757 INFO ]: Interprodecural is true [2018-06-24 20:55:50,757 INFO ]: Hoare is false [2018-06-24 20:55:50,757 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:55:50,757 INFO ]: Backedges is TWOTRACK [2018-06-24 20:55:50,757 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:55:50,757 INFO ]: Difference is false [2018-06-24 20:55:50,757 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:55:50,757 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:55:50,769 INFO ]: Start isEmpty. Operand 8 states. [2018-06-24 20:55:50,778 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:55:50,778 INFO ]: Found error trace [2018-06-24 20:55:50,779 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:55:50,779 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:55:50,784 INFO ]: Analyzing trace with hash 44149066, now seen corresponding path program 1 times [2018-06-24 20:55:50,788 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:55:50,789 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:55:50,827 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:50,827 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:55:50,827 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:50,872 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:55:50,942 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:55:50,944 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:55:50,944 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:55:50,945 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:55:50,958 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:55:50,958 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:55:50,961 INFO ]: Start difference. First operand 8 states. Second operand 3 states. [2018-06-24 20:55:51,031 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:55:51,031 INFO ]: Finished difference Result 9 states and 17 transitions. [2018-06-24 20:55:51,032 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:55:51,033 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:55:51,033 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:55:51,041 INFO ]: With dead ends: 9 [2018-06-24 20:55:51,041 INFO ]: Without dead ends: 9 [2018-06-24 20:55:51,042 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:55:51,055 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-24 20:55:51,078 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-24 20:55:51,079 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 20:55:51,080 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 17 transitions. [2018-06-24 20:55:51,082 INFO ]: Start accepts. Automaton has 9 states and 17 transitions. Word has length 5 [2018-06-24 20:55:51,082 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:55:51,082 INFO ]: Abstraction has 9 states and 17 transitions. [2018-06-24 20:55:51,082 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:55:51,082 INFO ]: Start isEmpty. Operand 9 states and 17 transitions. [2018-06-24 20:55:51,083 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:55:51,083 INFO ]: Found error trace [2018-06-24 20:55:51,083 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:55:51,083 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:55:51,083 INFO ]: Analyzing trace with hash 44175974, now seen corresponding path program 1 times [2018-06-24 20:55:51,083 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:55:51,083 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:55:51,084 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:51,084 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:55:51,084 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:51,098 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:55:51,189 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:55:51,189 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:55:51,189 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:55:51,190 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:55:51,190 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:55:51,190 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:55:51,191 INFO ]: Start difference. First operand 9 states and 17 transitions. Second operand 3 states. [2018-06-24 20:55:51,294 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:55:51,294 INFO ]: Finished difference Result 11 states and 19 transitions. [2018-06-24 20:55:51,295 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:55:51,295 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:55:51,295 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:55:51,298 INFO ]: With dead ends: 11 [2018-06-24 20:55:51,299 INFO ]: Without dead ends: 11 [2018-06-24 20:55:51,299 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:55:51,299 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-24 20:55:51,301 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 9. [2018-06-24 20:55:51,301 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 20:55:51,302 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 16 transitions. [2018-06-24 20:55:51,302 INFO ]: Start accepts. Automaton has 9 states and 16 transitions. Word has length 5 [2018-06-24 20:55:51,303 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:55:51,303 INFO ]: Abstraction has 9 states and 16 transitions. [2018-06-24 20:55:51,303 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:55:51,303 INFO ]: Start isEmpty. Operand 9 states and 16 transitions. [2018-06-24 20:55:51,303 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:55:51,303 INFO ]: Found error trace [2018-06-24 20:55:51,303 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:55:51,304 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:55:51,304 INFO ]: Analyzing trace with hash 44179818, now seen corresponding path program 1 times [2018-06-24 20:55:51,304 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:55:51,304 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:55:51,304 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:51,305 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:55:51,305 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:51,318 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:55:51,388 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:55:51,388 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:55:51,388 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:55:51,389 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:55:51,389 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:55:51,389 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:55:51,389 INFO ]: Start difference. First operand 9 states and 16 transitions. Second operand 3 states. [2018-06-24 20:55:51,440 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:55:51,440 INFO ]: Finished difference Result 11 states and 17 transitions. [2018-06-24 20:55:51,441 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:55:51,441 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:55:51,441 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:55:51,441 INFO ]: With dead ends: 11 [2018-06-24 20:55:51,441 INFO ]: Without dead ends: 11 [2018-06-24 20:55:51,442 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:55:51,442 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-24 20:55:51,443 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 9. [2018-06-24 20:55:51,443 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 20:55:51,444 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2018-06-24 20:55:51,444 INFO ]: Start accepts. Automaton has 9 states and 14 transitions. Word has length 5 [2018-06-24 20:55:51,444 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:55:51,444 INFO ]: Abstraction has 9 states and 14 transitions. [2018-06-24 20:55:51,444 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:55:51,444 INFO ]: Start isEmpty. Operand 9 states and 14 transitions. [2018-06-24 20:55:51,444 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 20:55:51,444 INFO ]: Found error trace [2018-06-24 20:55:51,444 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 20:55:51,444 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:55:51,444 INFO ]: Analyzing trace with hash 1367792987, now seen corresponding path program 1 times [2018-06-24 20:55:51,444 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:55:51,444 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:55:51,448 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:51,448 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:55:51,448 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:51,463 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:55:51,528 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:55:51,528 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:55:51,528 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-24 20:55:51,528 INFO ]: Interpolant automaton has 4 states [2018-06-24 20:55:51,528 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-24 20:55:51,528 INFO ]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-24 20:55:51,528 INFO ]: Start difference. First operand 9 states and 14 transitions. Second operand 4 states. [2018-06-24 20:55:51,589 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:55:51,589 INFO ]: Finished difference Result 11 states and 16 transitions. [2018-06-24 20:55:51,590 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-24 20:55:51,590 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-24 20:55:51,590 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:55:51,590 INFO ]: With dead ends: 11 [2018-06-24 20:55:51,590 INFO ]: Without dead ends: 9 [2018-06-24 20:55:51,590 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-24 20:55:51,590 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-24 20:55:51,591 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 8. [2018-06-24 20:55:51,592 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-24 20:55:51,592 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2018-06-24 20:55:51,592 INFO ]: Start accepts. Automaton has 8 states and 12 transitions. Word has length 6 [2018-06-24 20:55:51,592 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:55:51,592 INFO ]: Abstraction has 8 states and 12 transitions. [2018-06-24 20:55:51,592 INFO ]: Interpolant automaton has 4 states. [2018-06-24 20:55:51,592 INFO ]: Start isEmpty. Operand 8 states and 12 transitions. [2018-06-24 20:55:51,592 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 20:55:51,592 INFO ]: Found error trace [2018-06-24 20:55:51,592 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 20:55:51,592 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:55:51,593 INFO ]: Analyzing trace with hash 1368805881, now seen corresponding path program 1 times [2018-06-24 20:55:51,593 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:55:51,593 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:55:51,594 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:51,594 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:55:51,594 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:51,614 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:55:51,781 WARN ]: Spent 108.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2018-06-24 20:55:51,850 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:55:51,850 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:55:51,850 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-24 20:55:51,850 INFO ]: Interpolant automaton has 4 states [2018-06-24 20:55:51,850 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-24 20:55:51,850 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-24 20:55:51,851 INFO ]: Start difference. First operand 8 states and 12 transitions. Second operand 4 states. [2018-06-24 20:55:51,906 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:55:51,906 INFO ]: Finished difference Result 9 states and 13 transitions. [2018-06-24 20:55:51,906 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-24 20:55:51,907 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-24 20:55:51,907 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:55:51,907 INFO ]: With dead ends: 9 [2018-06-24 20:55:51,907 INFO ]: Without dead ends: 9 [2018-06-24 20:55:51,907 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:55:51,907 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-24 20:55:51,908 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-24 20:55:51,909 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-24 20:55:51,909 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2018-06-24 20:55:51,909 INFO ]: Start accepts. Automaton has 9 states and 13 transitions. Word has length 6 [2018-06-24 20:55:51,909 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:55:51,909 INFO ]: Abstraction has 9 states and 13 transitions. [2018-06-24 20:55:51,909 INFO ]: Interpolant automaton has 4 states. [2018-06-24 20:55:51,909 INFO ]: Start isEmpty. Operand 9 states and 13 transitions. [2018-06-24 20:55:51,909 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-24 20:55:51,909 INFO ]: Found error trace [2018-06-24 20:55:51,910 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-24 20:55:51,910 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:55:51,910 INFO ]: Analyzing trace with hash 1368923123, now seen corresponding path program 1 times [2018-06-24 20:55:51,910 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:55:51,910 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:55:51,911 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:51,911 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:55:51,911 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:51,923 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:55:51,968 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:55:51,968 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:55:51,968 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-24 20:55:51,968 INFO ]: Interpolant automaton has 4 states [2018-06-24 20:55:51,968 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-24 20:55:51,969 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-24 20:55:51,969 INFO ]: Start difference. First operand 9 states and 13 transitions. Second operand 4 states. [2018-06-24 20:55:51,996 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:55:51,996 INFO ]: Finished difference Result 9 states and 11 transitions. [2018-06-24 20:55:51,996 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-24 20:55:51,996 INFO ]: Start accepts. Automaton has 4 states. Word has length 6 [2018-06-24 20:55:51,997 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:55:51,997 INFO ]: With dead ends: 9 [2018-06-24 20:55:51,997 INFO ]: Without dead ends: 8 [2018-06-24 20:55:51,997 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:55:51,997 INFO ]: Start minimizeSevpa. Operand 8 states. [2018-06-24 20:55:51,998 INFO ]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-06-24 20:55:51,998 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-24 20:55:51,999 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2018-06-24 20:55:51,999 INFO ]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2018-06-24 20:55:51,999 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:55:51,999 INFO ]: Abstraction has 8 states and 9 transitions. [2018-06-24 20:55:51,999 INFO ]: Interpolant automaton has 4 states. [2018-06-24 20:55:51,999 INFO ]: Start isEmpty. Operand 8 states and 9 transitions. [2018-06-24 20:55:51,999 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-24 20:55:51,999 INFO ]: Found error trace [2018-06-24 20:55:51,999 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:55:51,999 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:55:51,999 INFO ]: Analyzing trace with hash -517518708, now seen corresponding path program 1 times [2018-06-24 20:55:51,999 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:55:51,999 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:55:52,000 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:52,000 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:55:52,000 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:55:52,013 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:55:52,074 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:55:52,074 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:55:52,074 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-24 20:55:52,074 INFO ]: Interpolant automaton has 4 states [2018-06-24 20:55:52,074 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-24 20:55:52,074 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-24 20:55:52,075 INFO ]: Start difference. First operand 8 states and 9 transitions. Second operand 4 states. [2018-06-24 20:55:52,154 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:55:52,154 INFO ]: Finished difference Result 4 states and 4 transitions. [2018-06-24 20:55:52,158 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-24 20:55:52,158 INFO ]: Start accepts. Automaton has 4 states. Word has length 7 [2018-06-24 20:55:52,158 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:55:52,158 INFO ]: With dead ends: 4 [2018-06-24 20:55:52,158 INFO ]: Without dead ends: 0 [2018-06-24 20:55:52,158 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:55:52,158 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-24 20:55:52,158 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-24 20:55:52,158 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-24 20:55:52,158 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-24 20:55:52,159 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-06-24 20:55:52,159 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:55:52,159 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-24 20:55:52,159 INFO ]: Interpolant automaton has 4 states. [2018-06-24 20:55:52,159 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-24 20:55:52,159 INFO ]: Finished isEmpty. No accepting run. [2018-06-24 20:55:52,161 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:55:52,163 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:55:52 BasicIcfg [2018-06-24 20:55:52,163 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:55:52,164 INFO ]: Toolchain (without parser) took 2078.21 ms. Allocated memory is still 305.1 MB. Free memory was 259.5 MB in the beginning and 195.3 MB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 3.6 GB. [2018-06-24 20:55:52,164 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:55:52,167 INFO ]: ChcToBoogie took 54.66 ms. Allocated memory is still 305.1 MB. Free memory was 259.5 MB in the beginning and 257.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:55:52,168 INFO ]: Boogie Preprocessor took 49.81 ms. Allocated memory is still 305.1 MB. Free memory was 257.5 MB in the beginning and 255.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:55:52,168 INFO ]: RCFGBuilder took 331.01 ms. Allocated memory is still 305.1 MB. Free memory was 255.5 MB in the beginning and 244.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:55:52,169 INFO ]: BlockEncodingV2 took 160.38 ms. Allocated memory is still 305.1 MB. Free memory was 244.5 MB in the beginning and 240.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:55:52,169 INFO ]: TraceAbstraction took 1474.08 ms. Allocated memory is still 305.1 MB. Free memory was 240.5 MB in the beginning and 195.3 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 3.6 GB. [2018-06-24 20:55:52,184 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 12 locations, 24 edges - StatisticsResult: Encoded RCFG 8 locations, 16 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 54.66 ms. Allocated memory is still 305.1 MB. Free memory was 259.5 MB in the beginning and 257.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 49.81 ms. Allocated memory is still 305.1 MB. Free memory was 257.5 MB in the beginning and 255.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 331.01 ms. Allocated memory is still 305.1 MB. Free memory was 255.5 MB in the beginning and 244.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 160.38 ms. Allocated memory is still 305.1 MB. Free memory was 244.5 MB in the beginning and 240.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1474.08 ms. Allocated memory is still 305.1 MB. Free memory was 240.5 MB in the beginning and 195.3 MB in the end (delta: 45.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 28 SDslu, 55 SDs, 0 SdLazy, 36 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 428 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/002-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-55-52-201.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/002-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-55-52-201.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/002-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-55-52-201.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/002-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-55-52-201.csv Received shutdown request...