java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/hopv/lia/termination/up_down02.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 18:32:21,486 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:32:21,488 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:32:21,499 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:32:21,500 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:32:21,500 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:32:21,501 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:32:21,508 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:32:21,511 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:32:21,511 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:32:21,512 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:32:21,512 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:32:21,515 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:32:21,516 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:32:21,517 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:32:21,517 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:32:21,521 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:32:21,523 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:32:21,536 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:32:21,537 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:32:21,538 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:32:21,539 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:32:21,541 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:32:21,541 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:32:21,542 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:32:21,542 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:32:21,543 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:32:21,550 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:32:21,550 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:32:21,551 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:32:21,552 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:32:21,552 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 18:32:21,552 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 18:32:21,553 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 18:32:21,553 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 18:32:21,557 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 18:32:21,558 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:32:21,579 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:32:21,579 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:32:21,579 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:32:21,579 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:32:21,584 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:32:21,585 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:32:21,585 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:32:21,585 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:32:21,585 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:32:21,586 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:32:21,586 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:32:21,586 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:32:21,586 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:32:21,586 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:32:21,586 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:32:21,587 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:32:21,587 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:32:21,587 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:32:21,587 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:32:21,587 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:32:21,587 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:32:21,590 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:32:21,590 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:32:21,635 INFO ]: Repository-Root is: /tmp [2018-06-26 18:32:21,649 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:32:21,654 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:32:21,655 INFO ]: Initializing SmtParser... [2018-06-26 18:32:21,655 INFO ]: SmtParser initialized [2018-06-26 18:32:21,656 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/up_down02.smt2 [2018-06-26 18:32:21,657 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-26 18:32:21,742 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/up_down02.smt2 unknown [2018-06-26 18:32:22,177 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/up_down02.smt2 [2018-06-26 18:32:22,182 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:32:22,188 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:32:22,188 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:32:22,188 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:32:22,188 INFO ]: ChcToBoogie initialized [2018-06-26 18:32:22,192 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:32:22" (1/1) ... [2018-06-26 18:32:22,313 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:32:22 Unit [2018-06-26 18:32:22,313 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:32:22,313 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:32:22,313 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:32:22,313 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:32:22,339 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:32:22" (1/1) ... [2018-06-26 18:32:22,339 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:32:22" (1/1) ... [2018-06-26 18:32:22,344 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:32:22" (1/1) ... [2018-06-26 18:32:22,344 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:32:22" (1/1) ... [2018-06-26 18:32:22,354 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:32:22" (1/1) ... [2018-06-26 18:32:22,356 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:32:22" (1/1) ... [2018-06-26 18:32:22,358 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:32:22" (1/1) ... [2018-06-26 18:32:22,361 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:32:22,362 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:32:22,362 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:32:22,362 INFO ]: RCFGBuilder initialized [2018-06-26 18:32:22,363 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:32:22" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:32:22,378 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:32:22,378 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:32:22,378 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:32:22,379 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:32:22,379 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:32:22,379 INFO ]: Found implementation of procedure Ultimate.START [2018-06-26 18:32:22,868 INFO ]: Using library mode [2018-06-26 18:32:22,871 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:32:22 BoogieIcfgContainer [2018-06-26 18:32:22,871 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:32:22,872 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:32:22,872 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:32:22,873 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:32:22,873 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:32:22" (1/1) ... [2018-06-26 18:32:22,891 INFO ]: Initial Icfg 25 locations, 35 edges [2018-06-26 18:32:22,892 INFO ]: Using Remove infeasible edges [2018-06-26 18:32:22,893 INFO ]: Using Maximize final states [2018-06-26 18:32:22,894 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:32:22,895 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:32:22,897 INFO ]: Using Remove sink states [2018-06-26 18:32:22,898 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:32:22,898 INFO ]: Using Use SBE [2018-06-26 18:32:22,930 INFO ]: SBE split 2 edges [2018-06-26 18:32:22,941 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-26 18:32:22,942 INFO ]: 0 new accepting states [2018-06-26 18:32:23,370 INFO ]: Removed 36 edges and 10 locations by large block encoding [2018-06-26 18:32:23,372 INFO ]: Removed 1 edges and 1 locations by removing sink states [2018-06-26 18:32:23,378 INFO ]: Removed 3 edges and 0 locations because of local infeasibility [2018-06-26 18:32:23,378 INFO ]: 0 new accepting states [2018-06-26 18:32:23,378 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:32:23,378 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:32:23,378 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:32:23,378 INFO ]: 0 new accepting states [2018-06-26 18:32:23,379 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:32:23,379 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:32:23,379 INFO ]: Encoded RCFG 12 locations, 21 edges [2018-06-26 18:32:23,379 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:32:23 BasicIcfg [2018-06-26 18:32:23,379 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:32:23,381 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:32:23,381 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:32:23,387 INFO ]: TraceAbstraction initialized [2018-06-26 18:32:23,387 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:32:22" (1/4) ... [2018-06-26 18:32:23,388 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f828f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:32:23, skipping insertion in model container [2018-06-26 18:32:23,388 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:32:22" (2/4) ... [2018-06-26 18:32:23,388 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f828f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:32:23, skipping insertion in model container [2018-06-26 18:32:23,388 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:32:22" (3/4) ... [2018-06-26 18:32:23,388 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f828f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:32:23, skipping insertion in model container [2018-06-26 18:32:23,388 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:32:23" (4/4) ... [2018-06-26 18:32:23,391 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:32:23,401 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:32:23,410 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:32:23,458 INFO ]: Using default assertion order modulation [2018-06-26 18:32:23,458 INFO ]: Interprodecural is true [2018-06-26 18:32:23,458 INFO ]: Hoare is false [2018-06-26 18:32:23,458 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:32:23,458 INFO ]: Backedges is TWOTRACK [2018-06-26 18:32:23,458 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:32:23,458 INFO ]: Difference is false [2018-06-26 18:32:23,458 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:32:23,458 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:32:23,472 INFO ]: Start isEmpty. Operand 12 states. [2018-06-26 18:32:23,486 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:32:23,486 INFO ]: Found error trace [2018-06-26 18:32:23,487 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:32:23,488 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:32:23,493 INFO ]: Analyzing trace with hash 36706384, now seen corresponding path program 1 times [2018-06-26 18:32:23,495 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:32:23,495 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:32:23,534 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:32:23,534 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:32:23,534 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:32:23,573 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-26 18:32:23,573 INFO ]: Advancing trace checker [2018-06-26 18:32:23,573 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-26 18:32:23,588 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:32:23,655 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:32:23,664 INFO ]: Computing forward predicates... [2018-06-26 18:32:23,752 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:32:23,774 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:32:23,774 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:32:23,775 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:32:23,787 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:32:23,787 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:32:23,790 INFO ]: Start difference. First operand 12 states. Second operand 3 states. [2018-06-26 18:32:23,920 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:32:23,920 INFO ]: Finished difference Result 16 states and 30 transitions. [2018-06-26 18:32:23,920 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:32:23,921 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:32:23,922 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:32:23,930 INFO ]: With dead ends: 16 [2018-06-26 18:32:23,930 INFO ]: Without dead ends: 12 [2018-06-26 18:32:23,931 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:32:23,951 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-26 18:32:23,976 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-26 18:32:23,978 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-26 18:32:23,979 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 20 transitions. [2018-06-26 18:32:23,980 INFO ]: Start accepts. Automaton has 12 states and 20 transitions. Word has length 5 [2018-06-26 18:32:23,980 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:32:23,980 INFO ]: Abstraction has 12 states and 20 transitions. [2018-06-26 18:32:23,980 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:32:23,981 INFO ]: Start isEmpty. Operand 12 states and 20 transitions. [2018-06-26 18:32:23,982 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:32:23,982 INFO ]: Found error trace [2018-06-26 18:32:23,982 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:32:23,982 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:32:23,982 INFO ]: Analyzing trace with hash 36914921, now seen corresponding path program 1 times [2018-06-26 18:32:23,982 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:32:23,982 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:32:23,983 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:32:23,983 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:32:23,983 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:32:23,996 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-26 18:32:23,996 INFO ]: Advancing trace checker [2018-06-26 18:32:23,996 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 (exit command is (exit), workingDir is null) [2018-06-26 18:32:24,010 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-26 18:32:24,065 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:32:24,067 INFO ]: Computing forward predicates... [2018-06-26 18:32:24,146 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:32:24,179 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:32:24,179 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:32:24,180 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:32:24,180 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:32:24,180 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:32:24,181 INFO ]: Start difference. First operand 12 states and 20 transitions. Second operand 3 states. [2018-06-26 18:32:24,270 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:32:24,270 INFO ]: Finished difference Result 17 states and 33 transitions. [2018-06-26 18:32:24,271 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:32:24,271 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:32:24,271 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:32:24,272 INFO ]: With dead ends: 17 [2018-06-26 18:32:24,272 INFO ]: Without dead ends: 17 [2018-06-26 18:32:24,272 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:32:24,273 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-26 18:32:24,277 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 13. [2018-06-26 18:32:24,277 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-26 18:32:24,277 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 22 transitions. [2018-06-26 18:32:24,278 INFO ]: Start accepts. Automaton has 13 states and 22 transitions. Word has length 5 [2018-06-26 18:32:24,278 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:32:24,278 INFO ]: Abstraction has 13 states and 22 transitions. [2018-06-26 18:32:24,278 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:32:24,278 INFO ]: Start isEmpty. Operand 13 states and 22 transitions. [2018-06-26 18:32:24,278 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:32:24,278 INFO ]: Found error trace [2018-06-26 18:32:24,278 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:32:24,278 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:32:24,278 INFO ]: Analyzing trace with hash 36915882, now seen corresponding path program 1 times [2018-06-26 18:32:24,279 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:32:24,279 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:32:24,279 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:32:24,279 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:32:24,279 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:32:24,289 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-26 18:32:24,289 INFO ]: Advancing trace checker [2018-06-26 18:32:24,289 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-26 18:32:24,303 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:32:24,337 INFO ]: Conjunction of SSA is sat [2018-06-26 18:32:24,369 INFO ]: Counterexample might be feasible [2018-06-26 18:32:24,381 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:32:24,383 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:32:24 BasicIcfg [2018-06-26 18:32:24,383 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:32:24,384 INFO ]: Toolchain (without parser) took 2201.27 ms. Allocated memory was 302.0 MB in the beginning and 324.5 MB in the end (delta: 22.5 MB). Free memory was 244.3 MB in the beginning and 262.4 MB in the end (delta: -18.1 MB). Peak memory consumption was 4.5 MB. Max. memory is 3.6 GB. [2018-06-26 18:32:24,385 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 302.0 MB. Free memory is still 267.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:32:24,385 INFO ]: ChcToBoogie took 124.99 ms. Allocated memory is still 302.0 MB. Free memory was 244.3 MB in the beginning and 241.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:32:24,386 INFO ]: Boogie Preprocessor took 47.81 ms. Allocated memory is still 302.0 MB. Free memory was 241.3 MB in the beginning and 240.3 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. [2018-06-26 18:32:24,386 INFO ]: RCFGBuilder took 509.48 ms. Allocated memory is still 302.0 MB. Free memory was 239.3 MB in the beginning and 223.3 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:32:24,386 INFO ]: BlockEncodingV2 took 507.76 ms. Allocated memory is still 302.0 MB. Free memory was 223.3 MB in the beginning and 203.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:32:24,387 INFO ]: TraceAbstraction took 1002.04 ms. Allocated memory was 302.0 MB in the beginning and 324.5 MB in the end (delta: 22.5 MB). Free memory was 203.3 MB in the beginning and 262.4 MB in the end (delta: -59.1 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:32:24,399 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 25 locations, 35 edges - StatisticsResult: Encoded RCFG 12 locations, 21 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 302.0 MB. Free memory is still 267.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 124.99 ms. Allocated memory is still 302.0 MB. Free memory was 244.3 MB in the beginning and 241.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 47.81 ms. Allocated memory is still 302.0 MB. Free memory was 241.3 MB in the beginning and 240.3 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. * RCFGBuilder took 509.48 ms. Allocated memory is still 302.0 MB. Free memory was 239.3 MB in the beginning and 223.3 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 507.76 ms. Allocated memory is still 302.0 MB. Free memory was 223.3 MB in the beginning and 203.3 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1002.04 ms. Allocated memory was 302.0 MB in the beginning and 324.5 MB in the end (delta: 22.5 MB). Free memory was 203.3 MB in the beginning and 262.4 MB in the end (delta: -59.1 MB). There was no memory consumed. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assume ((0 == hbv_up_1032DLRunknownCLN28_1_Int && hhv_up_1032DLRunknownCLN28_0_Int == hhv_up_1032DLRunknownCLN28_1_Int + 1) && hhv_up_1032DLRunknownCLN28_2_Int == 1) && !((!(0 == hbv_up_1032DLRunknownCLN28_1_Int) || hhv_up_1032DLRunknownCLN28_1_Int == 0) && (0 == hbv_up_1032DLRunknownCLN28_1_Int || !(hhv_up_1032DLRunknownCLN28_1_Int == 0))); [L0] hhv_up_without_checking_1115DLRunknownCLN32_0_Int, hhv_up_without_checking_1115DLRunknownCLN32_1_Int, hhv_up_without_checking_1115DLRunknownCLN32_2_Int := hhv_up_1032DLRunknownCLN28_1_Int, hbv_up_1032DLRunknownCLN28_2_Int, hbv_up_1032DLRunknownCLN28_3_Int; [L0] havoc hbv_up_1032DLRunknownCLN28_3_Int, hbv_up_1032DLRunknownCLN28_1_Int, hbv_up_1032DLRunknownCLN28_2_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 1 error locations. UNSAFE Result, 0.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 4 SDslu, 18 SDs, 0 SdLazy, 17 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=2, 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, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 7 NumberOfNonLiveVariables, 323 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/up_down02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_18-32-24-411.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/up_down02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_18-32-24-411.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/up_down02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_18-32-24-411.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/up_down02.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_18-32-24-411.csv Received shutdown request...