java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.15.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 00:36:27,647 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 00:36:27,649 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 00:36:27,665 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 00:36:27,665 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 00:36:27,666 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 00:36:27,667 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 00:36:27,671 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 00:36:27,672 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 00:36:27,674 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 00:36:27,675 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 00:36:27,675 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 00:36:27,676 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 00:36:27,680 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 00:36:27,681 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 00:36:27,682 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 00:36:27,683 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 00:36:27,697 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 00:36:27,698 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 00:36:27,699 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 00:36:27,700 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 00:36:27,702 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 00:36:27,702 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 00:36:27,703 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 00:36:27,703 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 00:36:27,704 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 00:36:27,709 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 00:36:27,710 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 00:36:27,711 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 00:36:27,711 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 00:36:27,711 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 00:36:27,712 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 00:36:27,712 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 00:36:27,713 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 00:36:27,713 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 00:36:27,714 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 00:36:27,727 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 00:36:27,727 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 00:36:27,728 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 00:36:27,728 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 00:36:27,729 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 00:36:27,729 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 00:36:27,729 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 00:36:27,729 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 00:36:27,730 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 00:36:27,730 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 00:36:27,730 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 00:36:27,730 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 00:36:27,730 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 00:36:27,730 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 00:36:27,731 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 00:36:27,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 00:36:27,731 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 00:36:27,732 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 00:36:27,733 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 00:36:27,770 INFO ]: Repository-Root is: /tmp [2018-06-22 00:36:27,787 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 00:36:27,793 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 00:36:27,794 INFO ]: Initializing SmtParser... [2018-06-22 00:36:27,794 INFO ]: SmtParser initialized [2018-06-22 00:36:27,795 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.15.smt2 [2018-06-22 00:36:27,797 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 00:36:27,888 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.15.smt2 unknown [2018-06-22 00:36:28,663 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.15.smt2 [2018-06-22 00:36:28,674 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 00:36:28,689 INFO ]: Walking toolchain with 4 elements. [2018-06-22 00:36:28,690 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 00:36:28,690 INFO ]: Initializing ChcToBoogie... [2018-06-22 00:36:28,690 INFO ]: ChcToBoogie initialized [2018-06-22 00:36:28,694 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:36:28" (1/1) ... [2018-06-22 00:36:28,865 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:28 Unit [2018-06-22 00:36:28,865 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 00:36:28,866 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 00:36:28,866 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 00:36:28,866 INFO ]: Boogie Preprocessor initialized [2018-06-22 00:36:28,887 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:28" (1/1) ... [2018-06-22 00:36:28,887 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:28" (1/1) ... [2018-06-22 00:36:28,909 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:28" (1/1) ... [2018-06-22 00:36:28,910 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:28" (1/1) ... [2018-06-22 00:36:28,934 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:28" (1/1) ... [2018-06-22 00:36:28,938 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:28" (1/1) ... [2018-06-22 00:36:28,944 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:28" (1/1) ... [2018-06-22 00:36:28,951 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 00:36:28,952 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 00:36:28,952 INFO ]: Initializing RCFGBuilder... [2018-06-22 00:36:28,952 INFO ]: RCFGBuilder initialized [2018-06-22 00:36:28,953 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:28" (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 00:36:28,974 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 00:36:28,975 INFO ]: Found specification of procedure gotoProc [2018-06-22 00:36:28,975 INFO ]: Found implementation of procedure gotoProc [2018-06-22 00:36:28,975 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 00:36:28,975 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 00:36:28,975 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 00:36:31,281 INFO ]: Using library mode [2018-06-22 00:36:31,282 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:36:31 BoogieIcfgContainer [2018-06-22 00:36:31,282 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 00:36:31,283 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 00:36:31,283 INFO ]: Initializing TraceAbstraction... [2018-06-22 00:36:31,292 INFO ]: TraceAbstraction initialized [2018-06-22 00:36:31,292 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:36:28" (1/3) ... [2018-06-22 00:36:31,293 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113724d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:36:31, skipping insertion in model container [2018-06-22 00:36:31,293 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:36:28" (2/3) ... [2018-06-22 00:36:31,293 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113724d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:36:31, skipping insertion in model container [2018-06-22 00:36:31,293 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:36:31" (3/3) ... [2018-06-22 00:36:31,296 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 00:36:31,305 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 00:36:31,315 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 00:36:31,370 INFO ]: Using default assertion order modulation [2018-06-22 00:36:31,370 INFO ]: Interprodecural is true [2018-06-22 00:36:31,370 INFO ]: Hoare is false [2018-06-22 00:36:31,370 INFO ]: Compute interpolants for FPandBP [2018-06-22 00:36:31,371 INFO ]: Backedges is TWOTRACK [2018-06-22 00:36:31,371 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 00:36:31,371 INFO ]: Difference is false [2018-06-22 00:36:31,371 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 00:36:31,371 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 00:36:31,403 INFO ]: Start isEmpty. Operand 146 states. [2018-06-22 00:36:31,426 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 00:36:31,426 INFO ]: Found error trace [2018-06-22 00:36:31,429 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:36:31,429 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:36:31,435 INFO ]: Analyzing trace with hash -1027827706, now seen corresponding path program 1 times [2018-06-22 00:36:31,437 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:36:31,437 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:36:31,489 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:31,489 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:36:31,489 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:31,622 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:36:31,902 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:36:31,905 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:36:31,905 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:36:31,907 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:36:31,922 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:36:31,923 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:36:31,927 INFO ]: Start difference. First operand 146 states. Second operand 4 states. [2018-06-22 00:36:34,927 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:36:34,927 INFO ]: Finished difference Result 285 states and 557 transitions. [2018-06-22 00:36:34,929 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:36:34,931 INFO ]: Start accepts. Automaton has 4 states. Word has length 7 [2018-06-22 00:36:34,931 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:36:34,992 INFO ]: With dead ends: 285 [2018-06-22 00:36:34,992 INFO ]: Without dead ends: 275 [2018-06-22 00:36:34,994 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 00:36:35,023 INFO ]: Start minimizeSevpa. Operand 275 states. [2018-06-22 00:36:35,173 INFO ]: Finished minimizeSevpa. Reduced states from 275 to 275. [2018-06-22 00:36:35,174 INFO ]: Start removeUnreachable. Operand 275 states. [2018-06-22 00:36:35,202 INFO ]: Finished removeUnreachable. Reduced from 275 states to 275 states and 539 transitions. [2018-06-22 00:36:35,205 INFO ]: Start accepts. Automaton has 275 states and 539 transitions. Word has length 7 [2018-06-22 00:36:35,206 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:36:35,206 INFO ]: Abstraction has 275 states and 539 transitions. [2018-06-22 00:36:35,206 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:36:35,206 INFO ]: Start isEmpty. Operand 275 states and 539 transitions. [2018-06-22 00:36:35,218 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 00:36:35,218 INFO ]: Found error trace [2018-06-22 00:36:35,218 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:36:35,219 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:36:35,224 INFO ]: Analyzing trace with hash -1917351219, now seen corresponding path program 1 times [2018-06-22 00:36:35,224 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:36:35,224 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:36:35,225 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:35,225 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:36:35,225 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:35,239 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:36:35,418 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:36:35,419 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:36:35,419 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:36:35,420 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:36:35,420 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:36:35,420 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:36:35,420 INFO ]: Start difference. First operand 275 states and 539 transitions. Second operand 4 states. [2018-06-22 00:36:37,389 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:36:37,389 INFO ]: Finished difference Result 411 states and 807 transitions. [2018-06-22 00:36:37,390 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:36:37,390 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 00:36:37,390 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:36:37,417 INFO ]: With dead ends: 411 [2018-06-22 00:36:37,417 INFO ]: Without dead ends: 411 [2018-06-22 00:36:37,418 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:36:37,419 INFO ]: Start minimizeSevpa. Operand 411 states. [2018-06-22 00:36:37,513 INFO ]: Finished minimizeSevpa. Reduced states from 411 to 411. [2018-06-22 00:36:37,513 INFO ]: Start removeUnreachable. Operand 411 states. [2018-06-22 00:36:37,538 INFO ]: Finished removeUnreachable. Reduced from 411 states to 411 states and 807 transitions. [2018-06-22 00:36:37,539 INFO ]: Start accepts. Automaton has 411 states and 807 transitions. Word has length 9 [2018-06-22 00:36:37,539 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:36:37,539 INFO ]: Abstraction has 411 states and 807 transitions. [2018-06-22 00:36:37,539 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:36:37,539 INFO ]: Start isEmpty. Operand 411 states and 807 transitions. [2018-06-22 00:36:37,576 INFO ]: Finished isEmpty. Found accepting run of length 19 [2018-06-22 00:36:37,576 INFO ]: Found error trace [2018-06-22 00:36:37,577 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:36:37,577 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:36:37,577 INFO ]: Analyzing trace with hash -39380897, now seen corresponding path program 1 times [2018-06-22 00:36:37,577 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:36:37,577 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:36:37,578 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:37,578 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:36:37,578 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:37,660 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:36:38,155 INFO ]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:36:38,155 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 00:36:38,155 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 00:36:38,166 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:36:38,276 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:36:38,292 INFO ]: Computing forward predicates... [2018-06-22 00:36:38,887 INFO ]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:36:38,912 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 00:36:38,912 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-06-22 00:36:38,912 INFO ]: Interpolant automaton has 12 states [2018-06-22 00:36:38,913 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 00:36:38,913 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-22 00:36:38,913 INFO ]: Start difference. First operand 411 states and 807 transitions. Second operand 12 states. [2018-06-22 00:36:39,226 WARN ]: Spent 190.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2018-06-22 00:37:16,073 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:37:16,073 INFO ]: Finished difference Result 3905 states and 33691 transitions. [2018-06-22 00:37:16,073 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-06-22 00:37:16,073 INFO ]: Start accepts. Automaton has 12 states. Word has length 18 [2018-06-22 00:37:16,073 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:37:18,260 INFO ]: With dead ends: 3905 [2018-06-22 00:37:18,260 INFO ]: Without dead ends: 3905 [2018-06-22 00:37:18,260 INFO ]: 0 DeclaredPredicates, 50 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=217, Invalid=1189, Unknown=0, NotChecked=0, Total=1406 [2018-06-22 00:37:18,263 INFO ]: Start minimizeSevpa. Operand 3905 states. [2018-06-22 00:37:23,571 INFO ]: Finished minimizeSevpa. Reduced states from 3905 to 1540. [2018-06-22 00:37:23,571 INFO ]: Start removeUnreachable. Operand 1540 states. [2018-06-22 00:37:23,966 INFO ]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 3931 transitions. [2018-06-22 00:37:23,967 INFO ]: Start accepts. Automaton has 1540 states and 3931 transitions. Word has length 18 [2018-06-22 00:37:23,967 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:37:23,967 INFO ]: Abstraction has 1540 states and 3931 transitions. [2018-06-22 00:37:23,967 INFO ]: Interpolant automaton has 12 states. [2018-06-22 00:37:23,967 INFO ]: Start isEmpty. Operand 1540 states and 3931 transitions. [2018-06-22 00:37:24,016 INFO ]: Finished isEmpty. Found accepting run of length 19 [2018-06-22 00:37:24,017 INFO ]: Found error trace [2018-06-22 00:37:24,017 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:37:24,017 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:37:24,019 INFO ]: Analyzing trace with hash -39231942, now seen corresponding path program 1 times [2018-06-22 00:37:24,019 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:37:24,019 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:37:24,020 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:24,020 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:37:24,020 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:24,103 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:37:24,733 INFO ]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:37:24,733 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:37:24,733 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 00:37:24,734 INFO ]: Interpolant automaton has 7 states [2018-06-22 00:37:24,734 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 00:37:24,734 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 00:37:24,734 INFO ]: Start difference. First operand 1540 states and 3931 transitions. Second operand 7 states. Received shutdown request... [2018-06-22 00:37:27,312 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-06-22 00:37:27,312 WARN ]: Verification canceled [2018-06-22 00:37:27,318 WARN ]: Timeout [2018-06-22 00:37:27,318 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:37:27 BoogieIcfgContainer [2018-06-22 00:37:27,318 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 00:37:27,319 INFO ]: Toolchain (without parser) took 58644.53 ms. Allocated memory was 309.3 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 217.9 MB in the beginning and 540.2 MB in the end (delta: -322.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 3.6 GB. [2018-06-22 00:37:27,320 INFO ]: SmtParser took 0.08 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 00:37:27,320 INFO ]: ChcToBoogie took 175.09 ms. Allocated memory is still 309.3 MB. Free memory was 217.9 MB in the beginning and 211.9 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:37:27,321 INFO ]: Boogie Preprocessor took 85.81 ms. Allocated memory is still 309.3 MB. Free memory was 211.9 MB in the beginning and 208.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:37:27,321 INFO ]: RCFGBuilder took 2330.06 ms. Allocated memory was 309.3 MB in the beginning and 358.6 MB in the end (delta: 49.3 MB). Free memory was 207.9 MB in the beginning and 327.8 MB in the end (delta: -119.9 MB). Peak memory consumption was 50.8 MB. Max. memory is 3.6 GB. [2018-06-22 00:37:27,328 INFO ]: TraceAbstraction took 56035.17 ms. Allocated memory was 358.6 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 327.8 MB in the beginning and 540.2 MB in the end (delta: -212.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 3.6 GB. [2018-06-22 00:37:27,330 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 175.09 ms. Allocated memory is still 309.3 MB. Free memory was 217.9 MB in the beginning and 211.9 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 85.81 ms. Allocated memory is still 309.3 MB. Free memory was 211.9 MB in the beginning and 208.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 2330.06 ms. Allocated memory was 309.3 MB in the beginning and 358.6 MB in the end (delta: 49.3 MB). Free memory was 207.9 MB in the beginning and 327.8 MB in the end (delta: -119.9 MB). Peak memory consumption was 50.8 MB. Max. memory is 3.6 GB. * TraceAbstraction took 56035.17 ms. Allocated memory was 358.6 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 327.8 MB in the beginning and 540.2 MB in the end (delta: -212.4 MB). Peak memory consumption was 1.1 GB. 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 constructing difference of abstraction (1540states) and interpolant automaton (currently 15 states, 7 states before enhancement), while ReachableStatesComputation was computing reachable states (2005 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 146 locations, 1 error locations. TIMEOUT Result, 55.9s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 47.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6499 SDtfs, 1425 SDslu, 27385 SDs, 0 SdLazy, 31608 SolverSat, 4885 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 37.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1540occurred 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: 6.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2365 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 2267 SizeOfPredicates, 6 NumberOfNonLiveVariables, 785 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 12/14 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/fortune-full.15.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_00-37-27-346.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full.15.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_00-37-27-346.csv Completed graceful shutdown