java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/hopv/lia/termination/append00.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:53:56,398 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:53:56,401 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:53:56,415 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:53:56,415 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:53:56,416 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:53:56,419 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:53:56,422 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:53:56,423 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:53:56,425 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:53:56,426 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:53:56,427 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:53:56,428 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:53:56,432 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:53:56,433 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:53:56,434 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:53:56,436 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:53:56,438 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:53:56,448 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:53:56,449 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:53:56,450 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:53:56,452 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:53:56,452 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:53:56,454 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:53:56,455 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:53:56,456 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:53:56,457 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:53:56,459 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:53:56,460 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:53:56,460 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:53:56,461 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:53:56,462 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:53:56,462 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:53:56,469 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:53:56,470 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:53:56,470 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:53:56,486 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:53:56,486 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:53:56,487 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:53:56,487 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:53:56,488 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:53:56,488 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:53:56,488 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:53:56,489 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:53:56,489 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:53:56,489 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:53:56,489 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:53:56,489 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:53:56,493 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:53:56,493 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:53:56,493 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:53:56,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:53:56,494 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:53:56,495 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:53:56,496 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:53:56,548 INFO ]: Repository-Root is: /tmp [2018-06-22 01:53:56,570 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:53:56,577 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:53:56,579 INFO ]: Initializing SmtParser... [2018-06-22 01:53:56,579 INFO ]: SmtParser initialized [2018-06-22 01:53:56,580 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/append00.smt2 [2018-06-22 01:53:56,582 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 01:53:56,684 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/append00.smt2 unknown [2018-06-22 01:53:57,021 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/append00.smt2 [2018-06-22 01:53:57,031 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:53:57,040 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:53:57,040 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:53:57,041 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:53:57,041 INFO ]: ChcToBoogie initialized [2018-06-22 01:53:57,045 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:53:57" (1/1) ... [2018-06-22 01:53:57,110 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:57 Unit [2018-06-22 01:53:57,110 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:53:57,111 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:53:57,111 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:53:57,111 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:53:57,135 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:57" (1/1) ... [2018-06-22 01:53:57,135 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:57" (1/1) ... [2018-06-22 01:53:57,142 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:57" (1/1) ... [2018-06-22 01:53:57,142 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:57" (1/1) ... [2018-06-22 01:53:57,146 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:57" (1/1) ... [2018-06-22 01:53:57,151 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:57" (1/1) ... [2018-06-22 01:53:57,152 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:57" (1/1) ... [2018-06-22 01:53:57,156 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:53:57,157 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:53:57,157 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:53:57,157 INFO ]: RCFGBuilder initialized [2018-06-22 01:53:57,158 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:57" (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 01:53:57,178 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:53:57,178 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:53:57,178 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:53:57,178 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:53:57,178 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:53:57,178 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 01:53:57,486 INFO ]: Using library mode [2018-06-22 01:53:57,487 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:53:57 BoogieIcfgContainer [2018-06-22 01:53:57,487 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:53:57,488 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:53:57,488 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:53:57,497 INFO ]: TraceAbstraction initialized [2018-06-22 01:53:57,497 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:53:57" (1/3) ... [2018-06-22 01:53:57,498 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a0bbcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:53:57, skipping insertion in model container [2018-06-22 01:53:57,498 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:57" (2/3) ... [2018-06-22 01:53:57,498 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a0bbcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:53:57, skipping insertion in model container [2018-06-22 01:53:57,499 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:53:57" (3/3) ... [2018-06-22 01:53:57,501 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:53:57,511 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:53:57,523 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:53:57,572 INFO ]: Using default assertion order modulation [2018-06-22 01:53:57,573 INFO ]: Interprodecural is true [2018-06-22 01:53:57,573 INFO ]: Hoare is false [2018-06-22 01:53:57,573 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:53:57,573 INFO ]: Backedges is TWOTRACK [2018-06-22 01:53:57,573 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:53:57,573 INFO ]: Difference is false [2018-06-22 01:53:57,573 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:53:57,573 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:53:57,588 INFO ]: Start isEmpty. Operand 12 states. [2018-06-22 01:53:57,599 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-22 01:53:57,599 INFO ]: Found error trace [2018-06-22 01:53:57,600 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-22 01:53:57,600 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:53:57,606 INFO ]: Analyzing trace with hash 259096664, now seen corresponding path program 1 times [2018-06-22 01:53:57,608 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:53:57,608 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:53:57,648 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:57,648 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:53:57,648 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:57,681 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:53:57,720 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:53:57,722 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:53:57,722 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 01:53:57,725 INFO ]: Interpolant automaton has 2 states [2018-06-22 01:53:57,744 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 01:53:57,744 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:53:57,747 INFO ]: Start difference. First operand 12 states. Second operand 2 states. [2018-06-22 01:53:57,772 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:53:57,772 INFO ]: Finished difference Result 10 states and 9 transitions. [2018-06-22 01:53:57,772 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 01:53:57,773 INFO ]: Start accepts. Automaton has 2 states. Word has length 6 [2018-06-22 01:53:57,773 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:53:57,782 INFO ]: With dead ends: 10 [2018-06-22 01:53:57,782 INFO ]: Without dead ends: 10 [2018-06-22 01:53:57,784 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:53:57,797 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 01:53:57,812 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 01:53:57,813 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 01:53:57,814 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2018-06-22 01:53:57,815 INFO ]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2018-06-22 01:53:57,815 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:53:57,815 INFO ]: Abstraction has 10 states and 9 transitions. [2018-06-22 01:53:57,816 INFO ]: Interpolant automaton has 2 states. [2018-06-22 01:53:57,816 INFO ]: Start isEmpty. Operand 10 states and 9 transitions. [2018-06-22 01:53:57,816 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 01:53:57,816 INFO ]: Found error trace [2018-06-22 01:53:57,816 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:53:57,816 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:53:57,816 INFO ]: Analyzing trace with hash -61339641, now seen corresponding path program 1 times [2018-06-22 01:53:57,816 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:53:57,816 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:53:57,817 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:57,818 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:53:57,818 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:57,842 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:53:57,979 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:53:57,979 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:53:57,979 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:53:57,981 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:53:57,981 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:53:57,981 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:53:57,981 INFO ]: Start difference. First operand 10 states and 9 transitions. Second operand 4 states. [2018-06-22 01:53:58,042 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:53:58,042 INFO ]: Finished difference Result 6 states and 5 transitions. [2018-06-22 01:53:58,042 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 01:53:58,042 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 01:53:58,042 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:53:58,042 INFO ]: With dead ends: 6 [2018-06-22 01:53:58,042 INFO ]: Without dead ends: 0 [2018-06-22 01:53:58,043 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:53:58,043 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:53:58,043 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:53:58,043 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:53:58,043 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:53:58,043 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-06-22 01:53:58,043 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:53:58,044 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:53:58,044 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:53:58,044 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:53:58,044 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:53:58,056 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:53:58 BoogieIcfgContainer [2018-06-22 01:53:58,056 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:53:58,057 INFO ]: Toolchain (without parser) took 1025.04 ms. Allocated memory is still 305.1 MB. Free memory was 257.5 MB in the beginning and 223.5 MB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:53:58,064 INFO ]: SmtParser took 0.11 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:53:58,064 INFO ]: ChcToBoogie took 69.88 ms. Allocated memory is still 305.1 MB. Free memory was 256.5 MB in the beginning and 254.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:53:58,065 INFO ]: Boogie Preprocessor took 45.55 ms. Allocated memory is still 305.1 MB. Free memory was 254.5 MB in the beginning and 253.5 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 01:53:58,065 INFO ]: RCFGBuilder took 330.27 ms. Allocated memory is still 305.1 MB. Free memory was 253.5 MB in the beginning and 243.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 3.6 GB. [2018-06-22 01:53:58,066 INFO ]: TraceAbstraction took 567.82 ms. Allocated memory is still 305.1 MB. Free memory was 242.5 MB in the beginning and 223.5 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:53:58,071 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.11 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 69.88 ms. Allocated memory is still 305.1 MB. Free memory was 256.5 MB in the beginning and 254.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 45.55 ms. Allocated memory is still 305.1 MB. Free memory was 254.5 MB in the beginning and 253.5 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 330.27 ms. Allocated memory is still 305.1 MB. Free memory was 253.5 MB in the beginning and 243.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 567.82 ms. Allocated memory is still 305.1 MB. Free memory was 242.5 MB in the beginning and 223.5 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13 SDtfs, 1 SDslu, 7 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/append00.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-53-58-088.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/append00.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-53-58-088.csv Received shutdown request...