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/cav12/transmitter.12.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 14:38:25,057 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 14:38:25,059 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 14:38:25,075 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 14:38:25,075 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 14:38:25,076 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 14:38:25,077 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 14:38:25,079 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 14:38:25,080 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 14:38:25,082 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 14:38:25,083 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 14:38:25,083 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 14:38:25,084 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 14:38:25,087 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 14:38:25,088 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 14:38:25,089 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 14:38:25,090 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 14:38:25,100 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 14:38:25,101 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 14:38:25,102 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 14:38:25,103 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 14:38:25,108 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 14:38:25,108 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 14:38:25,108 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 14:38:25,109 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 14:38:25,112 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 14:38:25,113 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 14:38:25,113 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 14:38:25,114 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 14:38:25,115 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 14:38:25,115 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 14:38:25,119 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 14:38:25,120 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 14:38:25,120 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 14:38:25,121 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 14:38:25,121 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 14:38:25,139 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 14:38:25,141 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 14:38:25,142 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 14:38:25,142 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 14:38:25,143 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 14:38:25,143 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 14:38:25,143 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 14:38:25,144 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 14:38:25,144 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 14:38:25,144 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 14:38:25,144 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 14:38:25,144 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 14:38:25,144 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 14:38:25,144 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 14:38:25,145 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 14:38:25,145 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 14:38:25,146 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 14:38:25,146 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 14:38:25,146 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 14:38:25,147 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 14:38:25,147 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 14:38:25,191 INFO ]: Repository-Root is: /tmp [2018-06-22 14:38:25,209 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 14:38:25,215 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 14:38:25,217 INFO ]: Initializing SmtParser... [2018-06-22 14:38:25,217 INFO ]: SmtParser initialized [2018-06-22 14:38:25,218 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/transmitter.12.smt2 [2018-06-22 14:38:25,219 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 14:38:25,311 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/transmitter.12.smt2 unknown [2018-06-22 14:38:32,209 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/transmitter.12.smt2 [2018-06-22 14:38:32,215 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 14:38:32,221 INFO ]: Walking toolchain with 4 elements. [2018-06-22 14:38:32,223 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 14:38:32,223 INFO ]: Initializing ChcToBoogie... [2018-06-22 14:38:32,223 INFO ]: ChcToBoogie initialized [2018-06-22 14:38:32,228 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 02:38:32" (1/1) ... [2018-06-22 14:38:32,352 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:38:32 Unit [2018-06-22 14:38:32,352 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 14:38:32,352 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 14:38:32,352 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 14:38:32,352 INFO ]: Boogie Preprocessor initialized [2018-06-22 14:38:32,376 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:38:32" (1/1) ... [2018-06-22 14:38:32,376 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:38:32" (1/1) ... [2018-06-22 14:38:32,466 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:38:32" (1/1) ... [2018-06-22 14:38:32,467 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:38:32" (1/1) ... [2018-06-22 14:38:32,543 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:38:32" (1/1) ... [2018-06-22 14:38:32,544 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:38:32" (1/1) ... [2018-06-22 14:38:32,595 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:38:32" (1/1) ... [2018-06-22 14:38:32,637 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 14:38:32,640 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 14:38:32,640 INFO ]: Initializing RCFGBuilder... [2018-06-22 14:38:32,640 INFO ]: RCFGBuilder initialized [2018-06-22 14:38:32,641 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:38:32" (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 14:38:32,653 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 14:38:32,653 INFO ]: Found specification of procedure False [2018-06-22 14:38:32,653 INFO ]: Found implementation of procedure False [2018-06-22 14:38:32,653 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 14:38:32,653 INFO ]: Found specification of procedure state [2018-06-22 14:38:32,653 INFO ]: Found implementation of procedure state [2018-06-22 14:38:32,653 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 14:38:32,653 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 14:38:32,653 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 14:38:38,106 INFO ]: Using library mode [2018-06-22 14:38:38,107 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:38:38 BoogieIcfgContainer [2018-06-22 14:38:38,107 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 14:38:38,108 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 14:38:38,108 INFO ]: Initializing TraceAbstraction... [2018-06-22 14:38:38,111 INFO ]: TraceAbstraction initialized [2018-06-22 14:38:38,111 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 02:38:32" (1/3) ... [2018-06-22 14:38:38,112 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d69da44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 02:38:38, skipping insertion in model container [2018-06-22 14:38:38,112 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:38:32" (2/3) ... [2018-06-22 14:38:38,113 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d69da44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:38:38, skipping insertion in model container [2018-06-22 14:38:38,113 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:38:38" (3/3) ... [2018-06-22 14:38:38,114 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 14:38:38,126 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 14:38:38,136 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 14:38:38,181 INFO ]: Using default assertion order modulation [2018-06-22 14:38:38,181 INFO ]: Interprodecural is true [2018-06-22 14:38:38,181 INFO ]: Hoare is false [2018-06-22 14:38:38,181 INFO ]: Compute interpolants for FPandBP [2018-06-22 14:38:38,181 INFO ]: Backedges is TWOTRACK [2018-06-22 14:38:38,181 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 14:38:38,181 INFO ]: Difference is false [2018-06-22 14:38:38,182 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 14:38:38,182 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 14:38:38,194 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 14:38:38,204 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 14:38:38,204 INFO ]: Found error trace [2018-06-22 14:38:38,205 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:38:38,205 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:38:38,210 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 14:38:38,211 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:38:38,212 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:38:38,244 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:38:38,244 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:38:38,244 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:38:38,475 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:38:38,741 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 14:38:38,744 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 14:38:38,744 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 14:38:38,746 INFO ]: Interpolant automaton has 4 states [2018-06-22 14:38:38,762 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 14:38:38,763 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 14:38:38,765 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 14:38:39,289 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:38:39,290 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 14:38:39,291 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 14:38:39,293 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 14:38:39,293 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:38:39,307 INFO ]: With dead ends: 13 [2018-06-22 14:38:39,307 INFO ]: Without dead ends: 13 [2018-06-22 14:38:39,309 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 14:38:39,325 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 14:38:39,344 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 14:38:39,345 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 14:38:39,345 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 14:38:39,347 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 14:38:39,347 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:38:39,347 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 14:38:39,347 INFO ]: Interpolant automaton has 4 states. [2018-06-22 14:38:39,347 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 14:38:39,348 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 14:38:39,348 INFO ]: Found error trace [2018-06-22 14:38:39,348 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:38:39,348 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:38:39,348 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 14:38:39,348 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:38:39,348 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:38:39,349 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:38:39,349 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:38:39,349 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:38:41,709 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:38:43,099 WARN ]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-22 14:38:43,298 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 14:38:43,298 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:38:43,298 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 14:38:43,311 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:38:44,011 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:38:44,087 INFO ]: Computing forward predicates... [2018-06-22 14:38:52,870 WARN ]: Spent 2.01 s on a formula simplification. DAG size of input: 71 DAG size of output: 37 [2018-06-22 14:38:53,842 WARN ]: Spent 624.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 14 [2018-06-22 14:38:53,865 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 14:38:53,908 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 14:38:53,908 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 14:38:53,909 INFO ]: Interpolant automaton has 9 states [2018-06-22 14:38:53,909 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 14:38:53,909 INFO ]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-06-22 14:38:53,910 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 14:38:54,439 WARN ]: Spent 287.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2018-06-22 14:38:54,695 WARN ]: Spent 153.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2018-06-22 14:38:54,852 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:38:54,852 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 14:38:54,854 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 14:38:54,854 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 14:38:54,854 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:38:54,855 INFO ]: With dead ends: 15 [2018-06-22 14:38:54,855 INFO ]: Without dead ends: 15 [2018-06-22 14:38:54,855 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-06-22 14:38:54,855 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 14:38:54,858 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 14:38:54,858 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 14:38:54,859 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 14:38:54,859 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 14:38:54,859 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:38:54,859 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 14:38:54,859 INFO ]: Interpolant automaton has 9 states. [2018-06-22 14:38:54,859 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 14:38:54,860 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 14:38:54,860 INFO ]: Found error trace [2018-06-22 14:38:54,860 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:38:54,860 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:38:54,860 INFO ]: Analyzing trace with hash -1486246934, now seen corresponding path program 2 times [2018-06-22 14:38:54,860 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:38:54,860 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:38:54,861 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:38:54,861 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:38:54,861 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:38:56,089 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:38:57,892 WARN ]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-22 14:38:57,948 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 14:38:57,948 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:38:57,948 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 14:38:57,960 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 14:38:59,069 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 14:38:59,069 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:38:59,173 INFO ]: Computing forward predicates... [2018-06-22 14:39:03,889 WARN ]: Spent 798.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2018-06-22 14:39:07,086 WARN ]: Spent 609.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 34 [2018-06-22 14:39:07,307 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 14:39:07,355 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 14:39:07,356 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-06-22 14:39:07,356 INFO ]: Interpolant automaton has 13 states [2018-06-22 14:39:07,356 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 14:39:07,356 INFO ]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-06-22 14:39:07,356 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 13 states. [2018-06-22 14:39:08,291 WARN ]: Spent 713.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2018-06-22 14:39:08,546 WARN ]: Spent 169.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 31 [2018-06-22 14:39:09,166 WARN ]: Spent 550.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2018-06-22 14:39:09,306 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:39:09,306 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 14:39:09,308 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 14:39:09,308 INFO ]: Start accepts. Automaton has 13 states. Word has length 17 [2018-06-22 14:39:09,308 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:39:09,308 INFO ]: With dead ends: 17 [2018-06-22 14:39:09,309 INFO ]: Without dead ends: 17 [2018-06-22 14:39:09,309 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-06-22 14:39:09,309 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 14:39:09,312 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 14:39:09,312 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 14:39:09,312 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 14:39:09,312 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-22 14:39:09,312 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:39:09,312 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 14:39:09,312 INFO ]: Interpolant automaton has 13 states. [2018-06-22 14:39:09,313 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 14:39:09,313 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 14:39:09,313 INFO ]: Found error trace [2018-06-22 14:39:09,313 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:39:09,313 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:39:09,313 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 3 times [2018-06-22 14:39:09,314 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:39:09,314 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:39:09,314 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:39:09,314 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 14:39:09,314 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:39:10,082 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:39:12,570 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 14:39:12,570 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:39:12,570 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 14:39:12,579 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 14:39:13,829 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 14:39:13,829 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:39:13,953 INFO ]: Computing forward predicates... [2018-06-22 14:39:17,167 WARN ]: Spent 540.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 Received shutdown request... [2018-06-22 14:39:17,333 INFO ]: Timeout while computing interpolants [2018-06-22 14:39:17,533 WARN ]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 14:39:17,533 WARN ]: Verification canceled [2018-06-22 14:39:17,537 WARN ]: Timeout [2018-06-22 14:39:17,538 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:39:17 BoogieIcfgContainer [2018-06-22 14:39:17,538 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 14:39:17,539 INFO ]: Toolchain (without parser) took 45323.14 ms. Allocated memory was 877.1 MB in the beginning and 1.6 GB in the end (delta: 758.1 MB). Free memory was 283.3 MB in the beginning and 276.2 MB in the end (delta: 7.1 MB). Peak memory consumption was 765.2 MB. Max. memory is 3.6 GB. [2018-06-22 14:39:17,539 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 14:39:17,540 INFO ]: ChcToBoogie took 129.31 ms. Allocated memory is still 877.1 MB. Free memory was 283.3 MB in the beginning and 270.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 3.6 GB. [2018-06-22 14:39:17,540 INFO ]: Boogie Preprocessor took 284.93 ms. Allocated memory is still 877.1 MB. Free memory was 270.5 MB in the beginning and 240.6 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 3.6 GB. [2018-06-22 14:39:17,540 INFO ]: RCFGBuilder took 5466.40 ms. Allocated memory was 877.1 MB in the beginning and 1.5 GB in the end (delta: 611.3 MB). Free memory was 240.6 MB in the beginning and 153.4 MB in the end (delta: 87.2 MB). Peak memory consumption was 711.9 MB. Max. memory is 3.6 GB. [2018-06-22 14:39:17,540 INFO ]: TraceAbstraction took 39429.57 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 146.8 MB). Free memory was 153.4 MB in the beginning and 276.2 MB in the end (delta: -122.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 3.6 GB. [2018-06-22 14:39:17,542 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 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 129.31 ms. Allocated memory is still 877.1 MB. Free memory was 283.3 MB in the beginning and 270.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 284.93 ms. Allocated memory is still 877.1 MB. Free memory was 270.5 MB in the beginning and 240.6 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 3.6 GB. * RCFGBuilder took 5466.40 ms. Allocated memory was 877.1 MB in the beginning and 1.5 GB in the end (delta: 611.3 MB). Free memory was 240.6 MB in the beginning and 153.4 MB in the end (delta: 87.2 MB). Peak memory consumption was 711.9 MB. Max. memory is 3.6 GB. * TraceAbstraction took 39429.57 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 146.8 MB). Free memory was 153.4 MB in the beginning and 276.2 MB in the end (delta: -122.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 22 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 32 quantified variables from 4 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 39.3s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 3.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 SDtfs, 21 SDslu, 78 SDs, 0 SdLazy, 62 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=3, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 4.9s SatisfiabilityAnalysisTime, 21.7s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 13684 SizeOfPredicates, 4195 NumberOfNonLiveVariables, 6583 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 8/26 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/transmitter.12.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_14-39-17-556.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/transmitter.12.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_14-39-17-556.csv Completed graceful shutdown