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/eldarica-misc/LIA/llreve/fib_safe.c-1.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:12:23,815 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:12:23,817 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:12:23,829 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:12:23,829 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:12:23,830 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:12:23,831 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:12:23,833 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:12:23,834 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:12:23,835 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:12:23,836 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:12:23,836 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:12:23,837 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:12:23,838 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:12:23,839 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:12:23,840 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:12:23,842 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:12:23,844 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:12:23,846 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:12:23,847 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:12:23,848 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:12:23,850 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:12:23,851 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:12:23,851 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:12:23,852 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:12:23,853 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:12:23,854 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:12:23,855 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:12:23,856 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:12:23,856 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:12:23,857 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:12:23,858 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:12:23,858 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:12:23,859 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:12:23,859 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:12:23,860 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:12:23,874 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:12:23,874 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:12:23,875 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:12:23,875 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:12:23,876 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:12:23,876 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:12:23,877 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:12:23,877 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:12:23,877 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:12:23,877 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:12:23,877 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:12:23,878 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:12:23,878 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:12:23,878 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:12:23,878 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:12:23,879 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:12:23,879 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:12:23,880 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:12:23,880 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:12:23,924 INFO ]: Repository-Root is: /tmp [2018-06-22 01:12:23,937 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:12:23,940 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:12:23,943 INFO ]: Initializing SmtParser... [2018-06-22 01:12:23,943 INFO ]: SmtParser initialized [2018-06-22 01:12:23,944 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/llreve/fib_safe.c-1.smt2 [2018-06-22 01:12:23,945 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 01:12:24,041 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/llreve/fib_safe.c-1.smt2 unknown [2018-06-22 01:12:24,254 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/llreve/fib_safe.c-1.smt2 [2018-06-22 01:12:24,259 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:12:24,272 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:12:24,272 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:12:24,272 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:12:24,272 INFO ]: ChcToBoogie initialized [2018-06-22 01:12:24,277 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:12:24" (1/1) ... [2018-06-22 01:12:24,336 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:12:24 Unit [2018-06-22 01:12:24,337 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:12:24,337 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:12:24,337 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:12:24,337 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:12:24,359 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:12:24" (1/1) ... [2018-06-22 01:12:24,359 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:12:24" (1/1) ... [2018-06-22 01:12:24,366 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:12:24" (1/1) ... [2018-06-22 01:12:24,368 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:12:24" (1/1) ... [2018-06-22 01:12:24,370 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:12:24" (1/1) ... [2018-06-22 01:12:24,374 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:12:24" (1/1) ... [2018-06-22 01:12:24,375 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:12:24" (1/1) ... [2018-06-22 01:12:24,376 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:12:24,380 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:12:24,380 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:12:24,380 INFO ]: RCFGBuilder initialized [2018-06-22 01:12:24,381 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:12:24" (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 01:12:24,400 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:12:24,400 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:12:24,400 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:12:24,400 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:12:24,400 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:12:24,400 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 01:12:24,647 INFO ]: Using library mode [2018-06-22 01:12:24,648 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:12:24 BoogieIcfgContainer [2018-06-22 01:12:24,648 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:12:24,651 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:12:24,651 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:12:24,666 INFO ]: TraceAbstraction initialized [2018-06-22 01:12:24,667 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:12:24" (1/3) ... [2018-06-22 01:12:24,668 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e10a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:12:24, skipping insertion in model container [2018-06-22 01:12:24,668 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:12:24" (2/3) ... [2018-06-22 01:12:24,668 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e10a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:12:24, skipping insertion in model container [2018-06-22 01:12:24,668 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:12:24" (3/3) ... [2018-06-22 01:12:24,670 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:12:24,684 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:12:24,691 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:12:24,727 INFO ]: Using default assertion order modulation [2018-06-22 01:12:24,727 INFO ]: Interprodecural is true [2018-06-22 01:12:24,727 INFO ]: Hoare is false [2018-06-22 01:12:24,728 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:12:24,728 INFO ]: Backedges is TWOTRACK [2018-06-22 01:12:24,728 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:12:24,728 INFO ]: Difference is false [2018-06-22 01:12:24,728 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:12:24,728 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:12:24,743 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 01:12:24,753 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 01:12:24,753 INFO ]: Found error trace [2018-06-22 01:12:24,754 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:12:24,754 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:12:24,759 INFO ]: Analyzing trace with hash 764877710, now seen corresponding path program 1 times [2018-06-22 01:12:24,761 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:12:24,761 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:12:24,793 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:12:24,793 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:12:24,793 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:12:24,835 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:12:24,990 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:12:24,992 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:12:24,992 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 01:12:24,994 INFO ]: Interpolant automaton has 5 states [2018-06-22 01:12:25,006 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 01:12:25,006 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:12:25,008 INFO ]: Start difference. First operand 13 states. Second operand 5 states. [2018-06-22 01:12:25,137 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:12:25,137 INFO ]: Finished difference Result 17 states and 20 transitions. [2018-06-22 01:12:25,137 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:12:25,138 INFO ]: Start accepts. Automaton has 5 states. Word has length 10 [2018-06-22 01:12:25,138 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:12:25,147 INFO ]: With dead ends: 17 [2018-06-22 01:12:25,147 INFO ]: Without dead ends: 17 [2018-06-22 01:12:25,149 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-06-22 01:12:25,165 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 01:12:25,180 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 13. [2018-06-22 01:12:25,181 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 01:12:25,182 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2018-06-22 01:12:25,183 INFO ]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2018-06-22 01:12:25,183 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:12:25,183 INFO ]: Abstraction has 13 states and 15 transitions. [2018-06-22 01:12:25,183 INFO ]: Interpolant automaton has 5 states. [2018-06-22 01:12:25,184 INFO ]: Start isEmpty. Operand 13 states and 15 transitions. [2018-06-22 01:12:25,184 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 01:12:25,184 INFO ]: Found error trace [2018-06-22 01:12:25,184 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:12:25,184 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:12:25,184 INFO ]: Analyzing trace with hash -2005065960, now seen corresponding path program 1 times [2018-06-22 01:12:25,184 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:12:25,184 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:12:25,185 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:12:25,185 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:12:25,185 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:12:25,211 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:12:25,357 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:12:25,357 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:12:25,357 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:12:25,364 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:12:25,414 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:12:25,425 INFO ]: Computing forward predicates... [2018-06-22 01:12:25,750 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:12:25,779 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:12:25,779 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-22 01:12:25,780 INFO ]: Interpolant automaton has 8 states [2018-06-22 01:12:25,780 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 01:12:25,780 INFO ]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-06-22 01:12:25,780 INFO ]: Start difference. First operand 13 states and 15 transitions. Second operand 8 states. [2018-06-22 01:12:26,093 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:12:26,093 INFO ]: Finished difference Result 18 states and 21 transitions. [2018-06-22 01:12:26,093 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 01:12:26,093 INFO ]: Start accepts. Automaton has 8 states. Word has length 11 [2018-06-22 01:12:26,094 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:12:26,094 INFO ]: With dead ends: 18 [2018-06-22 01:12:26,094 INFO ]: Without dead ends: 18 [2018-06-22 01:12:26,095 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-06-22 01:12:26,095 INFO ]: Start minimizeSevpa. Operand 18 states. [2018-06-22 01:12:26,097 INFO ]: Finished minimizeSevpa. Reduced states from 18 to 14. [2018-06-22 01:12:26,097 INFO ]: Start removeUnreachable. Operand 14 states. [2018-06-22 01:12:26,098 INFO ]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-06-22 01:12:26,098 INFO ]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2018-06-22 01:12:26,098 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:12:26,098 INFO ]: Abstraction has 14 states and 16 transitions. [2018-06-22 01:12:26,098 INFO ]: Interpolant automaton has 8 states. [2018-06-22 01:12:26,098 INFO ]: Start isEmpty. Operand 14 states and 16 transitions. [2018-06-22 01:12:26,098 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 01:12:26,098 INFO ]: Found error trace [2018-06-22 01:12:26,098 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:12:26,098 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:12:26,098 INFO ]: Analyzing trace with hash -459091806, now seen corresponding path program 1 times [2018-06-22 01:12:26,098 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:12:26,099 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:12:26,099 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:12:26,099 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:12:26,099 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:12:26,118 INFO ]: Conjunction of SSA is sat [2018-06-22 01:12:26,120 INFO ]: Counterexample might be feasible [2018-06-22 01:12:26,136 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:12:26 BoogieIcfgContainer [2018-06-22 01:12:26,136 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:12:26,137 INFO ]: Toolchain (without parser) took 1877.18 ms. Allocated memory is still 307.8 MB. Free memory was 264.1 MB in the beginning and 203.3 MB in the end (delta: 60.8 MB). Peak memory consumption was 60.8 MB. Max. memory is 3.6 GB. [2018-06-22 01:12:26,138 INFO ]: SmtParser took 0.10 ms. Allocated memory is still 307.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:12:26,139 INFO ]: ChcToBoogie took 64.66 ms. Allocated memory is still 307.8 MB. Free memory was 263.1 MB in the beginning and 261.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:12:26,139 INFO ]: Boogie Preprocessor took 39.28 ms. Allocated memory is still 307.8 MB. Free memory was 261.1 MB in the beginning and 260.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:12:26,140 INFO ]: RCFGBuilder took 267.96 ms. Allocated memory is still 307.8 MB. Free memory was 260.1 MB in the beginning and 251.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 3.6 GB. [2018-06-22 01:12:26,140 INFO ]: TraceAbstraction took 1485.16 ms. Allocated memory is still 307.8 MB. Free memory was 251.0 MB in the beginning and 203.3 MB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 3.6 GB. [2018-06-22 01:12:26,144 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.10 ms. Allocated memory is still 307.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 64.66 ms. Allocated memory is still 307.8 MB. Free memory was 263.1 MB in the beginning and 261.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 39.28 ms. Allocated memory is still 307.8 MB. Free memory was 261.1 MB in the beginning and 260.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 267.96 ms. Allocated memory is still 307.8 MB. Free memory was 260.1 MB in the beginning and 251.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1485.16 ms. Allocated memory is still 307.8 MB. Free memory was 251.0 MB in the beginning and 203.3 MB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. 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); [L0] gotoSwitch := gotoSwitch_in; [L0] assume !(hbv_False_1_Int == hbv_False_2_Int); [L0] hhv_inv_main31_0_Int, hhv_inv_main31_1_Int, hhv_inv_main31_2_Int := hbv_False_3_Int, hbv_False_1_Int, hbv_False_2_Int; [L0] havoc hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int; [L0] assume !(!(hbv_inv_main31_1_Int == 0) && 0 <= hbv_inv_main31_2_Int + -1); [L0] hhv_inv_main23_0_Int, hhv_inv_main23_1_Int, hhv_inv_main23_2_Int, hhv_inv_main23_3_Int, hhv_inv_main23_4_Int, hhv_inv_main23_5_Int := hhv_inv_main31_0_Int, hhv_inv_main31_1_Int, hbv_inv_main31_2_Int, hbv_inv_main31_3_Int, hhv_inv_main31_2_Int, hbv_inv_main31_4_Int; [L0] havoc hbv_inv_main31_3_Int, hbv_inv_main31_4_Int, hbv_inv_main31_2_Int, hbv_inv_main31_1_Int; [L0] assume (((hhv_inv_main23_5_Int == hbv_inv_main23_2_Int + hhv_inv_main23_3_Int && !(hbv_inv_main23_1_Int == 0)) && hhv_inv_main23_4_Int == hbv_inv_main23_2_Int + hhv_inv_main23_3_Int) && 0 <= hbv_inv_main23_3_Int + -1) && hhv_inv_main23_2_Int == hbv_inv_main23_3_Int + -1; [L0] hhv_inv_main23_0_Int, hhv_inv_main23_1_Int, hhv_inv_main23_2_Int, hhv_inv_main23_3_Int, hhv_inv_main23_4_Int, hhv_inv_main23_5_Int := hhv_inv_main23_0_Int, hhv_inv_main23_1_Int, hbv_inv_main23_3_Int, hbv_inv_main23_2_Int, hhv_inv_main23_3_Int, hbv_inv_main23_4_Int; [L0] havoc hbv_inv_main23_2_Int, hbv_inv_main23_1_Int, hbv_inv_main23_4_Int, hbv_inv_main23_3_Int; [L0] assume (((hhv_inv_main23_5_Int == 0 && hhv_inv_main23_2_Int == hhv_inv_main23_0_Int) && hhv_inv_main23_3_Int == 1) && !(!(hbv_inv_main23_1_Int == 0) && 0 <= hbv_inv_main23_2_Int + -1)) && hhv_inv_main23_4_Int == 1; [L0] hhv_inv_main9_0_Int, hhv_inv_main9_1_Int, hhv_inv_main9_2_Int, hhv_inv_main9_3_Int, hhv_inv_main9_4_Int := hhv_inv_main23_0_Int, hbv_inv_main23_2_Int, hbv_inv_main23_3_Int, hhv_inv_main23_1_Int, hbv_inv_main23_4_Int; [L0] havoc hbv_inv_main23_2_Int, hbv_inv_main23_1_Int, hbv_inv_main23_4_Int, hbv_inv_main23_3_Int; [L0] assume ((hhv_inv_main9_1_Int == hhv_inv_main9_0_Int && hhv_inv_main9_3_Int == 1) && hhv_inv_main9_4_Int == 0) && hhv_inv_main9_2_Int == 0; [L0] hhv_inv_main3_0_Int := hhv_inv_main9_0_Int; [L0] assume true; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 13 locations, 1 error locations. UNSAFE Result, 1.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 32 SDslu, 61 SDs, 0 SdLazy, 35 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 722 SizeOfPredicates, 6 NumberOfNonLiveVariables, 91 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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/fib_safe.c-1.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-12-26-155.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fib_safe.c-1.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-12-26-155.csv Received shutdown request...