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_No_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/durationThm_1_e7_12.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 17:21:43,187 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 17:21:43,190 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 17:21:43,201 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 17:21:43,201 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 17:21:43,202 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 17:21:43,203 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 17:21:43,207 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 17:21:43,209 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 17:21:43,209 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 17:21:43,211 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 17:21:43,212 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 17:21:43,213 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 17:21:43,214 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 17:21:43,214 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 17:21:43,217 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 17:21:43,219 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 17:21:43,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 17:21:43,233 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 17:21:43,234 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 17:21:43,235 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 17:21:43,237 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 17:21:43,237 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 17:21:43,237 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 17:21:43,238 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 17:21:43,239 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 17:21:43,239 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 17:21:43,240 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 17:21:43,247 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 17:21:43,247 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 17:21:43,248 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 17:21:43,248 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 17:21:43,248 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 17:21:43,249 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 17:21:43,250 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 17:21:43,250 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 17:21:43,271 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 17:21:43,271 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 17:21:43,271 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 17:21:43,271 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 17:21:43,272 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 17:21:43,273 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 17:21:43,273 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 17:21:43,273 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 17:21:43,273 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 17:21:43,273 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 17:21:43,273 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 17:21:43,276 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 17:21:43,276 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 17:21:43,276 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 17:21:43,277 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 17:21:43,277 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 17:21:43,277 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 17:21:43,277 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 17:21:43,277 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 17:21:43,279 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 17:21:43,279 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 17:21:43,326 INFO ]: Repository-Root is: /tmp [2018-06-22 17:21:43,341 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 17:21:43,345 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 17:21:43,346 INFO ]: Initializing SmtParser... [2018-06-22 17:21:43,347 INFO ]: SmtParser initialized [2018-06-22 17:21:43,347 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/durationThm_1_e7_12.smt2 [2018-06-22 17:21:43,349 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 17:21:43,438 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/durationThm_1_e7_12.smt2 unknown [2018-06-22 17:21:43,698 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/durationThm_1_e7_12.smt2 [2018-06-22 17:21:43,703 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 17:21:43,712 INFO ]: Walking toolchain with 4 elements. [2018-06-22 17:21:43,713 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 17:21:43,713 INFO ]: Initializing ChcToBoogie... [2018-06-22 17:21:43,713 INFO ]: ChcToBoogie initialized [2018-06-22 17:21:43,718 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:21:43" (1/1) ... [2018-06-22 17:21:43,767 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:21:43 Unit [2018-06-22 17:21:43,767 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 17:21:43,768 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 17:21:43,768 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 17:21:43,768 INFO ]: Boogie Preprocessor initialized [2018-06-22 17:21:43,787 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:21:43" (1/1) ... [2018-06-22 17:21:43,787 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:21:43" (1/1) ... [2018-06-22 17:21:43,796 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:21:43" (1/1) ... [2018-06-22 17:21:43,796 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:21:43" (1/1) ... [2018-06-22 17:21:43,800 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:21:43" (1/1) ... [2018-06-22 17:21:43,803 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:21:43" (1/1) ... [2018-06-22 17:21:43,804 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:21:43" (1/1) ... [2018-06-22 17:21:43,811 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 17:21:43,812 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 17:21:43,812 INFO ]: Initializing RCFGBuilder... [2018-06-22 17:21:43,812 INFO ]: RCFGBuilder initialized [2018-06-22 17:21:43,813 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:21:43" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 17:21:43,829 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 17:21:43,829 INFO ]: Found specification of procedure False [2018-06-22 17:21:43,829 INFO ]: Found implementation of procedure False [2018-06-22 17:21:43,830 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 17:21:43,830 INFO ]: Found specification of procedure state [2018-06-22 17:21:43,830 INFO ]: Found implementation of procedure state [2018-06-22 17:21:43,830 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 17:21:43,830 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 17:21:43,830 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 17:21:44,124 INFO ]: Using library mode [2018-06-22 17:21:44,125 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:21:44 BoogieIcfgContainer [2018-06-22 17:21:44,125 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 17:21:44,126 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 17:21:44,127 INFO ]: Initializing TraceAbstraction... [2018-06-22 17:21:44,130 INFO ]: TraceAbstraction initialized [2018-06-22 17:21:44,130 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:21:43" (1/3) ... [2018-06-22 17:21:44,131 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d4cdb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 05:21:44, skipping insertion in model container [2018-06-22 17:21:44,131 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:21:43" (2/3) ... [2018-06-22 17:21:44,131 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d4cdb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:21:44, skipping insertion in model container [2018-06-22 17:21:44,131 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:21:44" (3/3) ... [2018-06-22 17:21:44,134 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 17:21:44,145 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 17:21:44,156 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 17:21:44,204 INFO ]: Using default assertion order modulation [2018-06-22 17:21:44,205 INFO ]: Interprodecural is true [2018-06-22 17:21:44,205 INFO ]: Hoare is false [2018-06-22 17:21:44,205 INFO ]: Compute interpolants for FPandBP [2018-06-22 17:21:44,205 INFO ]: Backedges is TWOTRACK [2018-06-22 17:21:44,205 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 17:21:44,205 INFO ]: Difference is false [2018-06-22 17:21:44,205 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 17:21:44,205 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 17:21:44,222 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 17:21:44,237 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 17:21:44,237 INFO ]: Found error trace [2018-06-22 17:21:44,238 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 17:21:44,238 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 17:21:44,244 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 17:21:44,245 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 17:21:44,246 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 17:21:44,277 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:21:44,277 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 17:21:44,277 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:21:44,322 INFO ]: Conjunction of SSA is unsat [2018-06-22 17:21:44,426 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 17:21:44,428 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 17:21:44,428 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 17:21:44,429 INFO ]: Interpolant automaton has 4 states [2018-06-22 17:21:44,440 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 17:21:44,440 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 17:21:44,442 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 17:21:44,537 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 17:21:44,538 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 17:21:44,541 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 17:21:44,543 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 17:21:44,543 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 17:21:44,555 INFO ]: With dead ends: 13 [2018-06-22 17:21:44,555 INFO ]: Without dead ends: 13 [2018-06-22 17:21:44,557 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 17:21:44,574 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 17:21:44,594 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 17:21:44,595 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 17:21:44,596 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 17:21:44,597 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 17:21:44,597 INFO ]: Finished accepts. word is rejected. [2018-06-22 17:21:44,597 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 17:21:44,597 INFO ]: Interpolant automaton has 4 states. [2018-06-22 17:21:44,597 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 17:21:44,598 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 17:21:44,598 INFO ]: Found error trace [2018-06-22 17:21:44,598 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 17:21:44,598 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 17:21:44,598 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 17:21:44,598 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 17:21:44,598 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 17:21:44,599 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:21:44,599 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 17:21:44,599 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:21:44,641 INFO ]: Conjunction of SSA is unsat [2018-06-22 17:21:45,406 WARN ]: Spent 561.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2018-06-22 17:21:45,474 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 17:21:45,474 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 17:21:45,474 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 17:21:45,481 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 17:21:45,545 INFO ]: Conjunction of SSA is unsat [2018-06-22 17:21:45,556 INFO ]: Computing forward predicates... [2018-06-22 17:21:45,694 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 17:21:45,722 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 17:21:47,155 WARN ]: Spent 475.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 17 [2018-06-22 17:21:47,463 WARN ]: Spent 124.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 13 [2018-06-22 17:21:47,555 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 17:21:47,577 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 17:21:47,577 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 17:21:47,578 INFO ]: Interpolant automaton has 9 states [2018-06-22 17:21:47,578 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 17:21:47,579 INFO ]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-06-22 17:21:47,579 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 17:21:47,777 WARN ]: Spent 131.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2018-06-22 17:21:47,911 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 17:21:47,911 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 17:21:47,911 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 17:21:47,911 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 17:21:47,911 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 17:21:47,912 INFO ]: With dead ends: 15 [2018-06-22 17:21:47,912 INFO ]: Without dead ends: 15 [2018-06-22 17:21:47,913 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-06-22 17:21:47,913 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 17:21:47,915 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 17:21:47,915 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 17:21:47,916 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 17:21:47,916 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 17:21:47,916 INFO ]: Finished accepts. word is rejected. [2018-06-22 17:21:47,916 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 17:21:47,916 INFO ]: Interpolant automaton has 9 states. [2018-06-22 17:21:47,916 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 17:21:47,917 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 17:21:47,917 INFO ]: Found error trace [2018-06-22 17:21:47,917 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 17:21:47,917 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 17:21:47,917 INFO ]: Analyzing trace with hash -1486246934, now seen corresponding path program 2 times [2018-06-22 17:21:47,917 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 17:21:47,917 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 17:21:47,918 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:21:47,918 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 17:21:47,918 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 17:21:47,986 INFO ]: Conjunction of SSA is sat [2018-06-22 17:21:47,994 INFO ]: Counterexample might be feasible [2018-06-22 17:21:48,013 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:21:48 BoogieIcfgContainer [2018-06-22 17:21:48,013 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 17:21:48,013 INFO ]: Toolchain (without parser) took 4310.39 ms. Allocated memory was 308.8 MB in the beginning and 328.2 MB in the end (delta: 19.4 MB). Free memory was 261.3 MB in the beginning and 177.2 MB in the end (delta: 84.2 MB). Peak memory consumption was 103.6 MB. Max. memory is 3.6 GB. [2018-06-22 17:21:48,014 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 273.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 17:21:48,015 INFO ]: ChcToBoogie took 54.40 ms. Allocated memory is still 308.8 MB. Free memory was 261.3 MB in the beginning and 259.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 17:21:48,022 INFO ]: Boogie Preprocessor took 43.89 ms. Allocated memory is still 308.8 MB. Free memory was 259.4 MB in the beginning and 257.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 17:21:48,022 INFO ]: RCFGBuilder took 312.80 ms. Allocated memory is still 308.8 MB. Free memory was 257.4 MB in the beginning and 247.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-22 17:21:48,023 INFO ]: TraceAbstraction took 3886.21 ms. Allocated memory was 308.8 MB in the beginning and 328.2 MB in the end (delta: 19.4 MB). Free memory was 247.4 MB in the beginning and 177.2 MB in the end (delta: 70.2 MB). Peak memory consumption was 89.6 MB. Max. memory is 3.6 GB. [2018-06-22 17:21:48,026 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 273.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 54.40 ms. Allocated memory is still 308.8 MB. Free memory was 261.3 MB in the beginning and 259.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 43.89 ms. Allocated memory is still 308.8 MB. Free memory was 259.4 MB in the beginning and 257.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 312.80 ms. Allocated memory is still 308.8 MB. Free memory was 257.4 MB in the beginning and 247.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3886.21 ms. Allocated memory was 308.8 MB in the beginning and 328.2 MB in the end (delta: 19.4 MB). Free memory was 247.4 MB in the beginning and 177.2 MB in the end (delta: 70.2 MB). Peak memory consumption was 89.6 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 False(); [L0] assume !hbv_False_1_Bool; [L0] CALL call state(hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Bool, hbv_False_5_Bool, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Bool, hbv_False_11_Int, hbv_False_12_Int, hbv_False_13_Int, hbv_False_14_Int, hbv_False_15_Bool, hbv_False_1_Bool, hbv_False_16_Int, hbv_False_17_Int, hbv_False_18_Bool, hbv_False_19_Bool, hbv_False_20_Bool, hbv_False_21_Int, hbv_False_22_Int, hbv_False_23_Int); [L0] assume (((((((((((((((((((((((((((hhv_state_12_Int == hhv_state_11_Int && hhv_state_4_Int == hhv_state_21_Int) && hhv_state_7_Int == hhv_state_6_Int) && hhv_state_6_Int == hhv_state_20_Int) && hbv_state_15_Int == hbv_state_8_Int) && !(!hbv_state_14_Bool && !(hhv_state_21_Int == 0))) && hbv_state_6_Int == hbv_state_7_Int) && !(hbv_state_2_Bool && !(hbv_state_1_Int + -1 * hhv_state_22_Int == -1))) && hhv_state_1_Int == hhv_state_0_Int) && !(hbv_state_2_Bool && !(hbv_state_8_Int + -1 * hhv_state_20_Int == -1))) && !(!hbv_state_2_Bool && !(hhv_state_20_Int == 0))) && hbv_state_9_Int == hhv_state_11_Int) && hhv_state_5_Int == hhv_state_4_Int) && hbv_state_12_Int == hbv_state_1_Int) && !((((((1 <= hhv_state_12_Int && (!(hhv_state_10_Int <= hhv_state_5_Int) || hhv_state_18_Bool)) && 1 <= hhv_state_10_Int) && (!(hhv_state_12_Int <= hhv_state_7_Int) || hhv_state_17_Bool)) || hhv_state_2_Bool) || hbv_state_10_Bool) && (((((!(1 <= hhv_state_12_Int) || (!hhv_state_17_Bool && hhv_state_12_Int <= hhv_state_7_Int)) || !(1 <= hhv_state_10_Int)) || (hhv_state_10_Int <= hhv_state_5_Int && !hhv_state_18_Bool)) && !hbv_state_10_Bool) || !hhv_state_2_Bool))) && hhv_state_0_Int == hhv_state_22_Int) && !((!hhv_state_8_Bool || !hhv_state_3_Bool) && (hhv_state_8_Bool || hhv_state_3_Bool))) && !(((hhv_state_14_Bool || !hhv_state_8_Bool) || hhv_state_13_Bool) && ((hhv_state_8_Bool && !hhv_state_13_Bool) || !hhv_state_14_Bool))) && !(((hhv_state_13_Bool || hhv_state_18_Bool) || !(0 <= hhv_state_1_Int + (-1 * hhv_state_10_Int + -1 * hhv_state_12_Int))) && (!hhv_state_13_Bool || (0 <= hhv_state_1_Int + (-1 * hhv_state_10_Int + -1 * hhv_state_12_Int) && !hhv_state_18_Bool)))) && !((!hbv_state_16_Bool || !hbv_state_10_Bool) && (hbv_state_16_Bool || hbv_state_10_Bool))) && !(!hbv_state_2_Bool && !(hhv_state_22_Int == 0))) && hhv_state_10_Int == hhv_state_9_Int) && hbv_state_17_Int == hbv_state_13_Int) && !((!hhv_state_3_Bool || !hhv_state_2_Bool) && (hhv_state_3_Bool || hhv_state_2_Bool))) && hbv_state_7_Int == hhv_state_9_Int) && !((hbv_state_3_Bool || hbv_state_10_Bool) && (!hbv_state_3_Bool || !hbv_state_10_Bool))) && !(hbv_state_14_Bool && !(hbv_state_13_Int + -1 * hhv_state_21_Int == -1))) && hbv_state_11_Int == hbv_state_9_Int) && !(((hbv_state_3_Bool && !hbv_state_4_Bool) || !hbv_state_5_Bool) && ((hbv_state_5_Bool || hbv_state_4_Bool) || !hbv_state_3_Bool)); [L0] CALL call state(hbv_state_12_Int, hbv_state_1_Int, hbv_state_16_Bool, hbv_state_10_Bool, hbv_state_17_Int, hbv_state_13_Int, hbv_state_15_Int, hbv_state_8_Int, hbv_state_3_Bool, hbv_state_6_Int, hbv_state_7_Int, hbv_state_11_Int, hbv_state_9_Int, hbv_state_4_Bool, hbv_state_5_Bool, hbv_state_18_Int, hbv_state_19_Int, hbv_state_14_Bool, hbv_state_20_Bool, hbv_state_2_Bool, hbv_state_21_Int, hbv_state_22_Int, hbv_state_23_Int); [L0] assume (((((((((((((((((((((((((((hhv_state_12_Int == hhv_state_11_Int && hhv_state_4_Int == hhv_state_21_Int) && hhv_state_7_Int == hhv_state_6_Int) && hhv_state_6_Int == hhv_state_20_Int) && hbv_state_15_Int == hbv_state_8_Int) && !(!hbv_state_14_Bool && !(hhv_state_21_Int == 0))) && hbv_state_6_Int == hbv_state_7_Int) && !(hbv_state_2_Bool && !(hbv_state_1_Int + -1 * hhv_state_22_Int == -1))) && hhv_state_1_Int == hhv_state_0_Int) && !(hbv_state_2_Bool && !(hbv_state_8_Int + -1 * hhv_state_20_Int == -1))) && !(!hbv_state_2_Bool && !(hhv_state_20_Int == 0))) && hbv_state_9_Int == hhv_state_11_Int) && hhv_state_5_Int == hhv_state_4_Int) && hbv_state_12_Int == hbv_state_1_Int) && !((((((1 <= hhv_state_12_Int && (!(hhv_state_10_Int <= hhv_state_5_Int) || hhv_state_18_Bool)) && 1 <= hhv_state_10_Int) && (!(hhv_state_12_Int <= hhv_state_7_Int) || hhv_state_17_Bool)) || hhv_state_2_Bool) || hbv_state_10_Bool) && (((((!(1 <= hhv_state_12_Int) || (!hhv_state_17_Bool && hhv_state_12_Int <= hhv_state_7_Int)) || !(1 <= hhv_state_10_Int)) || (hhv_state_10_Int <= hhv_state_5_Int && !hhv_state_18_Bool)) && !hbv_state_10_Bool) || !hhv_state_2_Bool))) && hhv_state_0_Int == hhv_state_22_Int) && !((!hhv_state_8_Bool || !hhv_state_3_Bool) && (hhv_state_8_Bool || hhv_state_3_Bool))) && !(((hhv_state_14_Bool || !hhv_state_8_Bool) || hhv_state_13_Bool) && ((hhv_state_8_Bool && !hhv_state_13_Bool) || !hhv_state_14_Bool))) && !(((hhv_state_13_Bool || hhv_state_18_Bool) || !(0 <= hhv_state_1_Int + (-1 * hhv_state_10_Int + -1 * hhv_state_12_Int))) && (!hhv_state_13_Bool || (0 <= hhv_state_1_Int + (-1 * hhv_state_10_Int + -1 * hhv_state_12_Int) && !hhv_state_18_Bool)))) && !((!hbv_state_16_Bool || !hbv_state_10_Bool) && (hbv_state_16_Bool || hbv_state_10_Bool))) && !(!hbv_state_2_Bool && !(hhv_state_22_Int == 0))) && hhv_state_10_Int == hhv_state_9_Int) && hbv_state_17_Int == hbv_state_13_Int) && !((!hhv_state_3_Bool || !hhv_state_2_Bool) && (hhv_state_3_Bool || hhv_state_2_Bool))) && hbv_state_7_Int == hhv_state_9_Int) && !((hbv_state_3_Bool || hbv_state_10_Bool) && (!hbv_state_3_Bool || !hbv_state_10_Bool))) && !(hbv_state_14_Bool && !(hbv_state_13_Int + -1 * hhv_state_21_Int == -1))) && hbv_state_11_Int == hbv_state_9_Int) && !(((hbv_state_3_Bool && !hbv_state_4_Bool) || !hbv_state_5_Bool) && ((hbv_state_5_Bool || hbv_state_4_Bool) || !hbv_state_3_Bool)); [L0] CALL call state(hbv_state_12_Int, hbv_state_1_Int, hbv_state_16_Bool, hbv_state_10_Bool, hbv_state_17_Int, hbv_state_13_Int, hbv_state_15_Int, hbv_state_8_Int, hbv_state_3_Bool, hbv_state_6_Int, hbv_state_7_Int, hbv_state_11_Int, hbv_state_9_Int, hbv_state_4_Bool, hbv_state_5_Bool, hbv_state_18_Int, hbv_state_19_Int, hbv_state_14_Bool, hbv_state_20_Bool, hbv_state_2_Bool, hbv_state_21_Int, hbv_state_22_Int, hbv_state_23_Int); [L0] assume (((((((((((((hhv_state_4_Int == 0 && hhv_state_4_Int == hhv_state_5_Int) && hhv_state_9_Int == hhv_state_10_Int) && hhv_state_11_Int == hhv_state_12_Int) && hhv_state_0_Int == 0) && !((!hhv_state_2_Bool || !hhv_state_3_Bool) && (hhv_state_2_Bool || hhv_state_3_Bool))) && !!hhv_state_13_Bool) && hhv_state_9_Int == hhv_state_15_Int) && hhv_state_11_Int == hhv_state_16_Int) && hhv_state_6_Int == hhv_state_7_Int) && !((hhv_state_8_Bool || hhv_state_3_Bool) && (!hhv_state_8_Bool || !hhv_state_3_Bool))) && !(((((1 <= hhv_state_12_Int && 1 <= hhv_state_10_Int) && (!(hhv_state_12_Int <= hhv_state_7_Int) || hhv_state_17_Bool)) && (!(hhv_state_10_Int <= hhv_state_5_Int) || hhv_state_18_Bool)) || hhv_state_2_Bool) && ((((!hhv_state_2_Bool || (hhv_state_10_Int <= hhv_state_5_Int && !hhv_state_18_Bool)) || !(1 <= hhv_state_12_Int)) || !(1 <= hhv_state_10_Int)) || (!hhv_state_17_Bool && hhv_state_12_Int <= hhv_state_7_Int)))) && hhv_state_6_Int == 0) && hhv_state_0_Int == hhv_state_1_Int) && !(((hhv_state_8_Bool && !hhv_state_13_Bool) || !hhv_state_14_Bool) && ((hhv_state_14_Bool || hhv_state_13_Bool) || !hhv_state_8_Bool)); [L0] RET call state(hbv_state_12_Int, hbv_state_1_Int, hbv_state_16_Bool, hbv_state_10_Bool, hbv_state_17_Int, hbv_state_13_Int, hbv_state_15_Int, hbv_state_8_Int, hbv_state_3_Bool, hbv_state_6_Int, hbv_state_7_Int, hbv_state_11_Int, hbv_state_9_Int, hbv_state_4_Bool, hbv_state_5_Bool, hbv_state_18_Int, hbv_state_19_Int, hbv_state_14_Bool, hbv_state_20_Bool, hbv_state_2_Bool, hbv_state_21_Int, hbv_state_22_Int, hbv_state_23_Int); [L0] RET call state(hbv_state_12_Int, hbv_state_1_Int, hbv_state_16_Bool, hbv_state_10_Bool, hbv_state_17_Int, hbv_state_13_Int, hbv_state_15_Int, hbv_state_8_Int, hbv_state_3_Bool, hbv_state_6_Int, hbv_state_7_Int, hbv_state_11_Int, hbv_state_9_Int, hbv_state_4_Bool, hbv_state_5_Bool, hbv_state_18_Int, hbv_state_19_Int, hbv_state_14_Bool, hbv_state_20_Bool, hbv_state_2_Bool, hbv_state_21_Int, hbv_state_22_Int, hbv_state_23_Int); [L0] RET call state(hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Bool, hbv_False_5_Bool, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Bool, hbv_False_11_Int, hbv_False_12_Int, hbv_False_13_Int, hbv_False_14_Int, hbv_False_15_Bool, hbv_False_1_Bool, hbv_False_16_Int, hbv_False_17_Int, hbv_False_18_Bool, hbv_False_19_Bool, hbv_False_20_Bool, hbv_False_21_Int, hbv_False_22_Int, hbv_False_23_Int); [L0] RET call False(); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 3.8s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 7 SDslu, 42 SDs, 0 SdLazy, 29 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1896 SizeOfPredicates, 27 NumberOfNonLiveVariables, 162 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/6 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/durationThm_1_e7_12.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_17-21-48-037.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/durationThm_1_e7_12.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_17-21-48-037.csv Received shutdown request...