java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/hopv/lia/termination/indirectHO03.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:57:07,476 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:57:07,478 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:57:07,489 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:57:07,490 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:57:07,491 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:57:07,492 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:57:07,494 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:57:07,495 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:57:07,496 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:57:07,497 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:57:07,497 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:57:07,498 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:57:07,499 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:57:07,500 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:57:07,501 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:57:07,503 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:57:07,504 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:57:07,506 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:57:07,507 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:57:07,508 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:57:07,511 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:57:07,511 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:57:07,511 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:57:07,512 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:57:07,513 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:57:07,514 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:57:07,514 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:57:07,515 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:57:07,516 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:57:07,516 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:57:07,517 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:57:07,517 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:57:07,518 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:57:07,519 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:57:07,519 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:57:07,536 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:57:07,536 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:57:07,537 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:57:07,537 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:57:07,538 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:57:07,538 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:57:07,538 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:57:07,539 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:57:07,539 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:57:07,539 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:57:07,539 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:57:07,539 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:57:07,540 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:57:07,540 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:57:07,540 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:57:07,540 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:57:07,540 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:57:07,542 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:57:07,542 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:57:07,586 INFO ]: Repository-Root is: /tmp [2018-06-22 01:57:07,598 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:57:07,603 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:57:07,605 INFO ]: Initializing SmtParser... [2018-06-22 01:57:07,605 INFO ]: SmtParser initialized [2018-06-22 01:57:07,606 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/indirectHO03.smt2 [2018-06-22 01:57:07,607 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 01:57:07,704 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/indirectHO03.smt2 unknown [2018-06-22 01:57:08,199 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/indirectHO03.smt2 [2018-06-22 01:57:08,204 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:57:08,209 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:57:08,210 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:57:08,210 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:57:08,210 INFO ]: ChcToBoogie initialized [2018-06-22 01:57:08,215 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:57:08" (1/1) ... [2018-06-22 01:57:08,293 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:08 Unit [2018-06-22 01:57:08,293 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:57:08,293 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:57:08,294 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:57:08,294 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:57:08,318 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:08" (1/1) ... [2018-06-22 01:57:08,318 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:08" (1/1) ... [2018-06-22 01:57:08,326 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:08" (1/1) ... [2018-06-22 01:57:08,326 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:08" (1/1) ... [2018-06-22 01:57:08,342 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:08" (1/1) ... [2018-06-22 01:57:08,346 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:08" (1/1) ... [2018-06-22 01:57:08,356 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:08" (1/1) ... [2018-06-22 01:57:08,358 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:57:08,359 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:57:08,359 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:57:08,359 INFO ]: RCFGBuilder initialized [2018-06-22 01:57:08,360 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:08" (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 [2018-06-22 01:57:08,388 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:57:08,388 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:57:08,388 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:57:08,388 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:57:08,388 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:57:08,388 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 01:57:08,965 INFO ]: Using library mode [2018-06-22 01:57:08,965 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:57:08 BoogieIcfgContainer [2018-06-22 01:57:08,965 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:57:08,967 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:57:08,967 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:57:08,970 INFO ]: TraceAbstraction initialized [2018-06-22 01:57:08,971 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:57:08" (1/3) ... [2018-06-22 01:57:08,971 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be1f82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:57:08, skipping insertion in model container [2018-06-22 01:57:08,972 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:08" (2/3) ... [2018-06-22 01:57:08,972 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be1f82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:57:08, skipping insertion in model container [2018-06-22 01:57:08,972 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:57:08" (3/3) ... [2018-06-22 01:57:08,974 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:57:08,984 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:57:08,994 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:57:09,035 INFO ]: Using default assertion order modulation [2018-06-22 01:57:09,035 INFO ]: Interprodecural is true [2018-06-22 01:57:09,035 INFO ]: Hoare is false [2018-06-22 01:57:09,035 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:57:09,035 INFO ]: Backedges is TWOTRACK [2018-06-22 01:57:09,035 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:57:09,036 INFO ]: Difference is false [2018-06-22 01:57:09,036 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:57:09,036 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:57:09,051 INFO ]: Start isEmpty. Operand 31 states. [2018-06-22 01:57:09,060 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 01:57:09,060 INFO ]: Found error trace [2018-06-22 01:57:09,061 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:57:09,061 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:57:09,065 INFO ]: Analyzing trace with hash -1770072285, now seen corresponding path program 1 times [2018-06-22 01:57:09,066 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:57:09,067 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:57:09,098 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:09,098 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:09,098 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:09,133 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:57:09,178 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:57:09,180 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:57:09,180 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 01:57:09,182 INFO ]: Interpolant automaton has 2 states [2018-06-22 01:57:09,195 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 01:57:09,195 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:57:09,198 INFO ]: Start difference. First operand 31 states. Second operand 2 states. [2018-06-22 01:57:09,222 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:09,222 INFO ]: Finished difference Result 29 states and 38 transitions. [2018-06-22 01:57:09,223 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 01:57:09,224 INFO ]: Start accepts. Automaton has 2 states. Word has length 7 [2018-06-22 01:57:09,224 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:09,233 INFO ]: With dead ends: 29 [2018-06-22 01:57:09,233 INFO ]: Without dead ends: 23 [2018-06-22 01:57:09,235 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:57:09,258 INFO ]: Start minimizeSevpa. Operand 23 states. [2018-06-22 01:57:09,296 INFO ]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-06-22 01:57:09,297 INFO ]: Start removeUnreachable. Operand 23 states. [2018-06-22 01:57:09,298 INFO ]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2018-06-22 01:57:09,300 INFO ]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 7 [2018-06-22 01:57:09,300 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:09,300 INFO ]: Abstraction has 23 states and 28 transitions. [2018-06-22 01:57:09,300 INFO ]: Interpolant automaton has 2 states. [2018-06-22 01:57:09,300 INFO ]: Start isEmpty. Operand 23 states and 28 transitions. [2018-06-22 01:57:09,301 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 01:57:09,301 INFO ]: Found error trace [2018-06-22 01:57:09,302 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:57:09,302 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:57:09,302 INFO ]: Analyzing trace with hash 1821686655, now seen corresponding path program 1 times [2018-06-22 01:57:09,302 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:57:09,302 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:57:09,303 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:09,303 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:09,303 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:09,333 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:57:09,333 INFO ]: Advancing trace checker [2018-06-22 01:57:09,333 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 [2018-06-22 01:57:09,345 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:09,389 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:57:09,398 INFO ]: Computing forward predicates... [2018-06-22 01:57:09,502 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:57:09,528 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:57:09,528 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:57:09,529 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:57:09,529 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:57:09,530 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:57:09,530 INFO ]: Start difference. First operand 23 states and 28 transitions. Second operand 4 states. [2018-06-22 01:57:09,776 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:09,776 INFO ]: Finished difference Result 39 states and 48 transitions. [2018-06-22 01:57:09,776 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:57:09,776 INFO ]: Start accepts. Automaton has 4 states. Word has length 11 [2018-06-22 01:57:09,776 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:09,777 INFO ]: With dead ends: 39 [2018-06-22 01:57:09,778 INFO ]: Without dead ends: 39 [2018-06-22 01:57:09,778 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:57:09,778 INFO ]: Start minimizeSevpa. Operand 39 states. [2018-06-22 01:57:09,787 INFO ]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-06-22 01:57:09,787 INFO ]: Start removeUnreachable. Operand 39 states. [2018-06-22 01:57:09,788 INFO ]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-06-22 01:57:09,788 INFO ]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 11 [2018-06-22 01:57:09,789 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:09,789 INFO ]: Abstraction has 39 states and 48 transitions. [2018-06-22 01:57:09,789 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:57:09,791 INFO ]: Start isEmpty. Operand 39 states and 48 transitions. [2018-06-22 01:57:09,792 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 01:57:09,792 INFO ]: Found error trace [2018-06-22 01:57:09,792 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:57:09,792 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:57:09,793 INFO ]: Analyzing trace with hash -585919122, now seen corresponding path program 1 times [2018-06-22 01:57:09,793 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:57:09,793 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:57:09,793 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:09,794 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:09,794 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:09,803 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:57:09,803 INFO ]: Advancing trace checker [2018-06-22 01:57:09,803 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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 01:57:09,838 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:09,885 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:57:09,887 INFO ]: Computing forward predicates... [2018-06-22 01:57:10,025 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:57:10,060 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:57:10,060 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:57:10,060 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:57:10,060 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:57:10,060 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:57:10,060 INFO ]: Start difference. First operand 39 states and 48 transitions. Second operand 4 states. [2018-06-22 01:57:10,309 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:10,309 INFO ]: Finished difference Result 48 states and 58 transitions. [2018-06-22 01:57:10,310 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:57:10,310 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 01:57:10,310 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:10,311 INFO ]: With dead ends: 48 [2018-06-22 01:57:10,311 INFO ]: Without dead ends: 39 [2018-06-22 01:57:10,311 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:57:10,312 INFO ]: Start minimizeSevpa. Operand 39 states. [2018-06-22 01:57:10,317 INFO ]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-06-22 01:57:10,317 INFO ]: Start removeUnreachable. Operand 39 states. [2018-06-22 01:57:10,318 INFO ]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2018-06-22 01:57:10,318 INFO ]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 13 [2018-06-22 01:57:10,318 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:10,318 INFO ]: Abstraction has 39 states and 47 transitions. [2018-06-22 01:57:10,319 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:57:10,319 INFO ]: Start isEmpty. Operand 39 states and 47 transitions. [2018-06-22 01:57:10,319 INFO ]: Finished isEmpty. Found accepting run of length 16 [2018-06-22 01:57:10,319 INFO ]: Found error trace [2018-06-22 01:57:10,319 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:57:10,320 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:57:10,320 INFO ]: Analyzing trace with hash 1840373579, now seen corresponding path program 1 times [2018-06-22 01:57:10,320 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:57:10,320 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:57:10,321 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:10,321 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:10,321 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:10,330 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:57:10,330 INFO ]: Advancing trace checker [2018-06-22 01:57:10,330 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 [2018-06-22 01:57:10,353 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:10,380 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:57:10,383 INFO ]: Computing forward predicates... [2018-06-22 01:57:10,737 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:57:10,759 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:57:10,759 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 01:57:10,760 INFO ]: Interpolant automaton has 6 states [2018-06-22 01:57:10,760 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 01:57:10,760 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 01:57:10,760 INFO ]: Start difference. First operand 39 states and 47 transitions. Second operand 6 states. [2018-06-22 01:57:10,998 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:10,998 INFO ]: Finished difference Result 59 states and 69 transitions. [2018-06-22 01:57:10,999 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 01:57:10,999 INFO ]: Start accepts. Automaton has 6 states. Word has length 15 [2018-06-22 01:57:10,999 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:11,001 INFO ]: With dead ends: 59 [2018-06-22 01:57:11,001 INFO ]: Without dead ends: 59 [2018-06-22 01:57:11,001 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-06-22 01:57:11,001 INFO ]: Start minimizeSevpa. Operand 59 states. [2018-06-22 01:57:11,007 INFO ]: Finished minimizeSevpa. Reduced states from 59 to 47. [2018-06-22 01:57:11,007 INFO ]: Start removeUnreachable. Operand 47 states. [2018-06-22 01:57:11,009 INFO ]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2018-06-22 01:57:11,009 INFO ]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 15 [2018-06-22 01:57:11,009 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:11,009 INFO ]: Abstraction has 47 states and 55 transitions. [2018-06-22 01:57:11,009 INFO ]: Interpolant automaton has 6 states. [2018-06-22 01:57:11,009 INFO ]: Start isEmpty. Operand 47 states and 55 transitions. [2018-06-22 01:57:11,010 INFO ]: Finished isEmpty. Found accepting run of length 32 [2018-06-22 01:57:11,010 INFO ]: Found error trace [2018-06-22 01:57:11,010 INFO ]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:57:11,010 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:57:11,011 INFO ]: Analyzing trace with hash -481217116, now seen corresponding path program 1 times [2018-06-22 01:57:11,011 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:57:11,011 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:57:11,012 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:11,012 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:11,012 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:11,032 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:57:11,032 INFO ]: Advancing trace checker [2018-06-22 01:57:11,032 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 01:57:11,046 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:11,137 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:57:11,141 INFO ]: Computing forward predicates... [2018-06-22 01:57:11,187 INFO ]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 01:57:11,217 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:57:11,217 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:57:11,218 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:57:11,218 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:57:11,218 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:57:11,218 INFO ]: Start difference. First operand 47 states and 55 transitions. Second operand 4 states. [2018-06-22 01:57:11,331 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:11,331 INFO ]: Finished difference Result 71 states and 84 transitions. [2018-06-22 01:57:11,332 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:57:11,332 INFO ]: Start accepts. Automaton has 4 states. Word has length 31 [2018-06-22 01:57:11,332 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:11,334 INFO ]: With dead ends: 71 [2018-06-22 01:57:11,335 INFO ]: Without dead ends: 71 [2018-06-22 01:57:11,335 INFO ]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:57:11,335 INFO ]: Start minimizeSevpa. Operand 71 states. [2018-06-22 01:57:11,342 INFO ]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-06-22 01:57:11,342 INFO ]: Start removeUnreachable. Operand 71 states. [2018-06-22 01:57:11,344 INFO ]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2018-06-22 01:57:11,344 INFO ]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 31 [2018-06-22 01:57:11,344 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:11,344 INFO ]: Abstraction has 71 states and 84 transitions. [2018-06-22 01:57:11,344 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:57:11,344 INFO ]: Start isEmpty. Operand 71 states and 84 transitions. [2018-06-22 01:57:11,346 INFO ]: Finished isEmpty. Found accepting run of length 43 [2018-06-22 01:57:11,347 INFO ]: Found error trace [2018-06-22 01:57:11,347 INFO ]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:57:11,347 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:57:11,347 INFO ]: Analyzing trace with hash 587572635, now seen corresponding path program 1 times [2018-06-22 01:57:11,347 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:57:11,347 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:57:11,348 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:11,348 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:11,348 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:11,358 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:57:11,358 INFO ]: Advancing trace checker [2018-06-22 01:57:11,358 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 01:57:11,378 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:11,473 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:57:11,478 INFO ]: Computing forward predicates... [2018-06-22 01:57:11,900 INFO ]: Checked inductivity of 32 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 01:57:11,925 INFO ]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-06-22 01:57:11,926 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-06-22 01:57:11,926 INFO ]: Interpolant automaton has 11 states [2018-06-22 01:57:11,926 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 01:57:11,926 INFO ]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-06-22 01:57:11,926 INFO ]: Start difference. First operand 71 states and 84 transitions. Second operand 11 states. [2018-06-22 01:57:12,424 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:12,424 INFO ]: Finished difference Result 88 states and 106 transitions. [2018-06-22 01:57:12,425 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-22 01:57:12,425 INFO ]: Start accepts. Automaton has 11 states. Word has length 42 [2018-06-22 01:57:12,425 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:12,425 INFO ]: With dead ends: 88 [2018-06-22 01:57:12,425 INFO ]: Without dead ends: 0 [2018-06-22 01:57:12,425 INFO ]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=144, Invalid=456, Unknown=0, NotChecked=0, Total=600 [2018-06-22 01:57:12,425 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:57:12,425 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:57:12,426 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:57:12,426 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:57:12,426 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2018-06-22 01:57:12,426 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:12,426 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:57:12,426 INFO ]: Interpolant automaton has 11 states. [2018-06-22 01:57:12,426 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:57:12,426 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:57:12,430 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:57:12 BoogieIcfgContainer [2018-06-22 01:57:12,430 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:57:12,431 INFO ]: Toolchain (without parser) took 4226.49 ms. Allocated memory was 307.8 MB in the beginning and 344.5 MB in the end (delta: 36.7 MB). Free memory was 248.2 MB in the beginning and 288.5 MB in the end (delta: -40.3 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:57:12,432 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 307.8 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:57:12,432 INFO ]: ChcToBoogie took 83.62 ms. Allocated memory is still 307.8 MB. Free memory was 248.2 MB in the beginning and 246.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:12,433 INFO ]: Boogie Preprocessor took 64.98 ms. Allocated memory is still 307.8 MB. Free memory was 246.2 MB in the beginning and 244.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:12,433 INFO ]: RCFGBuilder took 606.53 ms. Allocated memory is still 307.8 MB. Free memory was 244.2 MB in the beginning and 222.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:12,434 INFO ]: TraceAbstraction took 3462.69 ms. Allocated memory was 307.8 MB in the beginning and 344.5 MB in the end (delta: 36.7 MB). Free memory was 222.2 MB in the beginning and 288.5 MB in the end (delta: -66.3 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:57:12,437 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 307.8 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 83.62 ms. Allocated memory is still 307.8 MB. Free memory was 248.2 MB in the beginning and 246.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 64.98 ms. Allocated memory is still 307.8 MB. Free memory was 246.2 MB in the beginning and 244.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 606.53 ms. Allocated memory is still 307.8 MB. Free memory was 244.2 MB in the beginning and 222.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3462.69 ms. Allocated memory was 307.8 MB in the beginning and 344.5 MB in the end (delta: 36.7 MB). Free memory was 222.2 MB in the beginning and 288.5 MB in the end (delta: -66.3 MB). There was no memory consumed. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 162 SDtfs, 218 SDslu, 306 SDs, 0 SdLazy, 269 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 6319 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1392 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 43/48 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/indirectHO03.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-57-12-447.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/indirectHO03.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-57-12-447.csv Received shutdown request...