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/eldarica-misc/LIA/Consistency/fortune-full.10.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:30:32,765 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:30:32,768 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:30:32,781 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:30:32,781 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:30:32,782 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:30:32,785 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:30:32,787 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:30:32,789 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:30:32,791 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:30:32,794 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:30:32,794 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:30:32,795 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:30:32,796 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:30:32,796 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:30:32,799 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:30:32,800 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:30:32,809 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:30:32,811 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:30:32,811 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:30:32,812 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:30:32,817 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:30:32,818 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:30:32,818 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:30:32,819 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:30:32,819 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:30:32,820 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:30:32,820 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:30:32,823 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:30:32,823 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:30:32,824 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:30:32,824 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:30:32,824 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:30:32,825 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:30:32,826 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:30:32,828 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 10:30:32,846 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:30:32,846 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:30:32,847 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:30:32,847 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:30:32,848 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:30:32,848 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:30:32,849 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:30:32,849 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:30:32,849 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:30:32,849 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:30:32,849 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:30:32,850 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:30:32,850 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:30:32,850 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:30:32,850 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:30:32,850 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:30:32,851 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:30:32,851 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:30:32,851 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:30:32,855 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:30:32,855 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:30:32,901 INFO ]: Repository-Root is: /tmp [2018-06-22 10:30:32,915 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:30:32,920 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:30:32,921 INFO ]: Initializing SmtParser... [2018-06-22 10:30:32,922 INFO ]: SmtParser initialized [2018-06-22 10:30:32,923 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.10.smt2 [2018-06-22 10:30:32,924 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 10:30:33,011 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.10.smt2 unknown [2018-06-22 10:30:34,062 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.10.smt2 [2018-06-22 10:30:34,074 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:30:34,089 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:30:34,090 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:30:34,094 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:30:34,094 INFO ]: ChcToBoogie initialized [2018-06-22 10:30:34,097 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:30:34" (1/1) ... [2018-06-22 10:30:34,203 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:34 Unit [2018-06-22 10:30:34,203 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:30:34,207 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:30:34,207 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:30:34,207 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:30:34,228 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:34" (1/1) ... [2018-06-22 10:30:34,228 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:34" (1/1) ... [2018-06-22 10:30:34,256 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:34" (1/1) ... [2018-06-22 10:30:34,256 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:34" (1/1) ... [2018-06-22 10:30:34,285 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:34" (1/1) ... [2018-06-22 10:30:34,290 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:34" (1/1) ... [2018-06-22 10:30:34,302 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:34" (1/1) ... [2018-06-22 10:30:34,310 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:30:34,314 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:30:34,314 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:30:34,314 INFO ]: RCFGBuilder initialized [2018-06-22 10:30:34,315 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:34" (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 10:30:34,331 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:30:34,331 INFO ]: Found specification of procedure False [2018-06-22 10:30:34,331 INFO ]: Found implementation of procedure False [2018-06-22 10:30:34,331 INFO ]: Specification and implementation of procedure step_lturn__bar given in one single declaration [2018-06-22 10:30:34,331 INFO ]: Found specification of procedure step_lturn__bar [2018-06-22 10:30:34,331 INFO ]: Found implementation of procedure step_lturn__bar [2018-06-22 10:30:34,331 INFO ]: Specification and implementation of procedure combined_lturn__bar given in one single declaration [2018-06-22 10:30:34,331 INFO ]: Found specification of procedure combined_lturn__bar [2018-06-22 10:30:34,331 INFO ]: Found implementation of procedure combined_lturn__bar [2018-06-22 10:30:34,331 INFO ]: Specification and implementation of procedure lturn__bar given in one single declaration [2018-06-22 10:30:34,331 INFO ]: Found specification of procedure lturn__bar [2018-06-22 10:30:34,331 INFO ]: Found implementation of procedure lturn__bar [2018-06-22 10:30:34,331 INFO ]: Specification and implementation of procedure step_lturn given in one single declaration [2018-06-22 10:30:34,331 INFO ]: Found specification of procedure step_lturn [2018-06-22 10:30:34,331 INFO ]: Found implementation of procedure step_lturn [2018-06-22 10:30:34,331 INFO ]: Specification and implementation of procedure combined_lturn given in one single declaration [2018-06-22 10:30:34,331 INFO ]: Found specification of procedure combined_lturn [2018-06-22 10:30:34,331 INFO ]: Found implementation of procedure combined_lturn [2018-06-22 10:30:34,332 INFO ]: Specification and implementation of procedure lturn given in one single declaration [2018-06-22 10:30:34,332 INFO ]: Found specification of procedure lturn [2018-06-22 10:30:34,332 INFO ]: Found implementation of procedure lturn [2018-06-22 10:30:34,332 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:30:34,332 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:30:34,332 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 10:30:36,386 INFO ]: Using library mode [2018-06-22 10:30:36,387 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:30:36 BoogieIcfgContainer [2018-06-22 10:30:36,387 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:30:36,390 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:30:36,390 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:30:36,393 INFO ]: TraceAbstraction initialized [2018-06-22 10:30:36,393 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:30:34" (1/3) ... [2018-06-22 10:30:36,394 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@582cea8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:30:36, skipping insertion in model container [2018-06-22 10:30:36,394 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:34" (2/3) ... [2018-06-22 10:30:36,394 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@582cea8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:30:36, skipping insertion in model container [2018-06-22 10:30:36,394 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:30:36" (3/3) ... [2018-06-22 10:30:36,396 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:30:36,406 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:30:36,416 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:30:36,464 INFO ]: Using default assertion order modulation [2018-06-22 10:30:36,464 INFO ]: Interprodecural is true [2018-06-22 10:30:36,464 INFO ]: Hoare is false [2018-06-22 10:30:36,464 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:30:36,464 INFO ]: Backedges is TWOTRACK [2018-06-22 10:30:36,465 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:30:36,465 INFO ]: Difference is false [2018-06-22 10:30:36,465 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:30:36,465 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:30:36,485 INFO ]: Start isEmpty. Operand 162 states. [2018-06-22 10:30:36,521 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:30:36,521 INFO ]: Found error trace [2018-06-22 10:30:36,522 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:36,522 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:36,527 INFO ]: Analyzing trace with hash 1969935086, now seen corresponding path program 1 times [2018-06-22 10:30:36,529 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:36,530 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:36,563 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:36,563 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:36,563 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:36,893 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:37,537 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:30:37,540 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:37,540 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:30:37,542 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:30:37,557 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:30:37,558 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:37,560 INFO ]: Start difference. First operand 162 states. Second operand 6 states. [2018-06-22 10:30:40,193 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:40,193 INFO ]: Finished difference Result 204 states and 538 transitions. [2018-06-22 10:30:40,194 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:30:40,195 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:30:40,195 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:40,224 INFO ]: With dead ends: 204 [2018-06-22 10:30:40,224 INFO ]: Without dead ends: 201 [2018-06-22 10:30:40,226 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:40,244 INFO ]: Start minimizeSevpa. Operand 201 states. [2018-06-22 10:30:40,372 INFO ]: Finished minimizeSevpa. Reduced states from 201 to 199. [2018-06-22 10:30:40,373 INFO ]: Start removeUnreachable. Operand 199 states. [2018-06-22 10:30:40,381 INFO ]: Finished removeUnreachable. Reduced from 199 states to 199 states and 532 transitions. [2018-06-22 10:30:40,383 INFO ]: Start accepts. Automaton has 199 states and 532 transitions. Word has length 17 [2018-06-22 10:30:40,384 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:40,384 INFO ]: Abstraction has 199 states and 532 transitions. [2018-06-22 10:30:40,384 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:30:40,384 INFO ]: Start isEmpty. Operand 199 states and 532 transitions. [2018-06-22 10:30:40,391 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:30:40,391 INFO ]: Found error trace [2018-06-22 10:30:40,391 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:40,391 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:40,392 INFO ]: Analyzing trace with hash -765811913, now seen corresponding path program 1 times [2018-06-22 10:30:40,392 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:40,392 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:40,393 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:40,393 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:40,393 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:40,479 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:40,935 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:30:40,935 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:40,935 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:30:40,937 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:30:40,937 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:30:40,937 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:40,937 INFO ]: Start difference. First operand 199 states and 532 transitions. Second operand 6 states. [2018-06-22 10:30:42,572 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:42,572 INFO ]: Finished difference Result 267 states and 977 transitions. [2018-06-22 10:30:42,572 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:30:42,572 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:30:42,572 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:42,584 INFO ]: With dead ends: 267 [2018-06-22 10:30:42,584 INFO ]: Without dead ends: 267 [2018-06-22 10:30:42,586 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:42,587 INFO ]: Start minimizeSevpa. Operand 267 states. [2018-06-22 10:30:42,695 INFO ]: Finished minimizeSevpa. Reduced states from 267 to 265. [2018-06-22 10:30:42,695 INFO ]: Start removeUnreachable. Operand 265 states. [2018-06-22 10:30:42,700 INFO ]: Finished removeUnreachable. Reduced from 265 states to 265 states and 975 transitions. [2018-06-22 10:30:42,700 INFO ]: Start accepts. Automaton has 265 states and 975 transitions. Word has length 17 [2018-06-22 10:30:42,700 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:42,700 INFO ]: Abstraction has 265 states and 975 transitions. [2018-06-22 10:30:42,700 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:30:42,700 INFO ]: Start isEmpty. Operand 265 states and 975 transitions. [2018-06-22 10:30:42,705 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:30:42,705 INFO ]: Found error trace [2018-06-22 10:30:42,705 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:42,705 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:42,705 INFO ]: Analyzing trace with hash -258619476, now seen corresponding path program 1 times [2018-06-22 10:30:42,705 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:42,705 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:42,706 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:42,706 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:42,706 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:42,744 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:42,883 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:30:42,883 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:42,883 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:30:42,884 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:30:42,884 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:30:42,884 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:42,884 INFO ]: Start difference. First operand 265 states and 975 transitions. Second operand 6 states. [2018-06-22 10:30:44,487 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:44,487 INFO ]: Finished difference Result 323 states and 1420 transitions. [2018-06-22 10:30:44,487 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:30:44,487 INFO ]: Start accepts. Automaton has 6 states. Word has length 21 [2018-06-22 10:30:44,487 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:44,500 INFO ]: With dead ends: 323 [2018-06-22 10:30:44,501 INFO ]: Without dead ends: 323 [2018-06-22 10:30:44,501 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:44,502 INFO ]: Start minimizeSevpa. Operand 323 states. [2018-06-22 10:30:44,674 INFO ]: Finished minimizeSevpa. Reduced states from 323 to 319. [2018-06-22 10:30:44,674 INFO ]: Start removeUnreachable. Operand 319 states. [2018-06-22 10:30:44,682 INFO ]: Finished removeUnreachable. Reduced from 319 states to 319 states and 1415 transitions. [2018-06-22 10:30:44,682 INFO ]: Start accepts. Automaton has 319 states and 1415 transitions. Word has length 21 [2018-06-22 10:30:44,682 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:44,683 INFO ]: Abstraction has 319 states and 1415 transitions. [2018-06-22 10:30:44,683 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:30:44,683 INFO ]: Start isEmpty. Operand 319 states and 1415 transitions. [2018-06-22 10:30:44,689 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:30:44,689 INFO ]: Found error trace [2018-06-22 10:30:44,689 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:44,689 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:44,689 INFO ]: Analyzing trace with hash -2096910863, now seen corresponding path program 1 times [2018-06-22 10:30:44,689 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:44,690 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:44,690 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:44,690 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:44,690 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:44,747 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:45,188 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:30:45,188 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:45,188 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:30:45,189 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:30:45,189 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:30:45,189 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:45,189 INFO ]: Start difference. First operand 319 states and 1415 transitions. Second operand 6 states. [2018-06-22 10:30:46,225 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:46,226 INFO ]: Finished difference Result 467 states and 2910 transitions. [2018-06-22 10:30:46,226 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:30:46,226 INFO ]: Start accepts. Automaton has 6 states. Word has length 21 [2018-06-22 10:30:46,226 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:46,249 INFO ]: With dead ends: 467 [2018-06-22 10:30:46,249 INFO ]: Without dead ends: 467 [2018-06-22 10:30:46,249 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:46,249 INFO ]: Start minimizeSevpa. Operand 467 states. [2018-06-22 10:30:46,669 INFO ]: Finished minimizeSevpa. Reduced states from 467 to 458. [2018-06-22 10:30:46,669 INFO ]: Start removeUnreachable. Operand 458 states. [2018-06-22 10:30:46,682 INFO ]: Finished removeUnreachable. Reduced from 458 states to 458 states and 2879 transitions. [2018-06-22 10:30:46,682 INFO ]: Start accepts. Automaton has 458 states and 2879 transitions. Word has length 21 [2018-06-22 10:30:46,682 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:46,682 INFO ]: Abstraction has 458 states and 2879 transitions. [2018-06-22 10:30:46,682 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:30:46,682 INFO ]: Start isEmpty. Operand 458 states and 2879 transitions. [2018-06-22 10:30:46,689 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:30:46,689 INFO ]: Found error trace [2018-06-22 10:30:46,689 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:46,689 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:46,690 INFO ]: Analyzing trace with hash -1674434703, now seen corresponding path program 1 times [2018-06-22 10:30:46,690 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:46,690 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:46,690 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:46,690 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:46,690 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:46,738 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:47,312 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:30:47,312 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:47,312 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 10:30:47,313 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:30:47,313 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:30:47,313 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:30:47,313 INFO ]: Start difference. First operand 458 states and 2879 transitions. Second operand 7 states. [2018-06-22 10:30:50,347 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:50,347 INFO ]: Finished difference Result 827 states and 6784 transitions. [2018-06-22 10:30:50,348 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 10:30:50,348 INFO ]: Start accepts. Automaton has 7 states. Word has length 25 [2018-06-22 10:30:50,348 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:50,401 INFO ]: With dead ends: 827 [2018-06-22 10:30:50,401 INFO ]: Without dead ends: 827 [2018-06-22 10:30:50,401 INFO ]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:30:50,403 INFO ]: Start minimizeSevpa. Operand 827 states. [2018-06-22 10:30:51,268 INFO ]: Finished minimizeSevpa. Reduced states from 827 to 804. [2018-06-22 10:30:51,268 INFO ]: Start removeUnreachable. Operand 804 states. [2018-06-22 10:30:51,300 INFO ]: Finished removeUnreachable. Reduced from 804 states to 804 states and 6649 transitions. [2018-06-22 10:30:51,300 INFO ]: Start accepts. Automaton has 804 states and 6649 transitions. Word has length 25 [2018-06-22 10:30:51,300 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:51,300 INFO ]: Abstraction has 804 states and 6649 transitions. [2018-06-22 10:30:51,300 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:30:51,300 INFO ]: Start isEmpty. Operand 804 states and 6649 transitions. [2018-06-22 10:30:51,308 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:30:51,308 INFO ]: Found error trace [2018-06-22 10:30:51,308 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:51,308 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:51,309 INFO ]: Analyzing trace with hash -904287483, now seen corresponding path program 1 times [2018-06-22 10:30:51,309 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:51,309 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:51,309 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:51,309 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:51,309 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:51,353 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:51,743 INFO ]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 10:30:51,743 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:30:51,743 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 10:30:51,753 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:51,871 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:51,889 INFO ]: Computing forward predicates... [2018-06-22 10:30:52,113 INFO ]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 10:30:52,141 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:30:52,141 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2018-06-22 10:30:52,141 INFO ]: Interpolant automaton has 13 states [2018-06-22 10:30:52,141 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 10:30:52,141 INFO ]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-06-22 10:30:52,141 INFO ]: Start difference. First operand 804 states and 6649 transitions. Second operand 13 states. [2018-06-22 10:31:01,114 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:31:01,114 INFO ]: Finished difference Result 1384 states and 19254 transitions. [2018-06-22 10:31:01,115 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-06-22 10:31:01,115 INFO ]: Start accepts. Automaton has 13 states. Word has length 25 [2018-06-22 10:31:01,115 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:31:01,395 INFO ]: With dead ends: 1384 [2018-06-22 10:31:01,395 INFO ]: Without dead ends: 1384 [2018-06-22 10:31:01,396 INFO ]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2018-06-22 10:31:01,397 INFO ]: Start minimizeSevpa. Operand 1384 states. [2018-06-22 10:31:04,164 INFO ]: Finished minimizeSevpa. Reduced states from 1384 to 1340. [2018-06-22 10:31:04,164 INFO ]: Start removeUnreachable. Operand 1340 states. [2018-06-22 10:31:04,294 INFO ]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 18573 transitions. [2018-06-22 10:31:04,294 INFO ]: Start accepts. Automaton has 1340 states and 18573 transitions. Word has length 25 [2018-06-22 10:31:04,295 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:31:04,295 INFO ]: Abstraction has 1340 states and 18573 transitions. [2018-06-22 10:31:04,295 INFO ]: Interpolant automaton has 13 states. [2018-06-22 10:31:04,295 INFO ]: Start isEmpty. Operand 1340 states and 18573 transitions. [2018-06-22 10:31:04,309 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-22 10:31:04,309 INFO ]: Found error trace [2018-06-22 10:31:04,309 INFO ]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:31:04,309 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:31:04,309 INFO ]: Analyzing trace with hash -1262591355, now seen corresponding path program 1 times [2018-06-22 10:31:04,309 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:31:04,309 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:31:04,315 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:31:04,315 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:31:04,315 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:31:04,376 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:31:04,631 INFO ]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-06-22 10:31:04,631 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:31:04,631 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 10:31:04,643 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:31:04,742 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:31:04,749 INFO ]: Computing forward predicates... [2018-06-22 10:31:05,043 INFO ]: Checked inductivity of 13 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-22 10:31:05,064 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:31:05,064 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2018-06-22 10:31:05,064 INFO ]: Interpolant automaton has 14 states [2018-06-22 10:31:05,064 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 10:31:05,064 INFO ]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-06-22 10:31:05,064 INFO ]: Start difference. First operand 1340 states and 18573 transitions. Second operand 14 states. [2018-06-22 10:31:15,807 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:31:15,807 INFO ]: Finished difference Result 1618 states and 27104 transitions. [2018-06-22 10:31:15,807 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-22 10:31:15,807 INFO ]: Start accepts. Automaton has 14 states. Word has length 29 [2018-06-22 10:31:15,808 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:31:16,017 INFO ]: With dead ends: 1618 [2018-06-22 10:31:16,017 INFO ]: Without dead ends: 1618 [2018-06-22 10:31:16,017 INFO ]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2018-06-22 10:31:16,019 INFO ]: Start minimizeSevpa. Operand 1618 states. [2018-06-22 10:31:18,460 INFO ]: Finished minimizeSevpa. Reduced states from 1618 to 1396. [2018-06-22 10:31:18,460 INFO ]: Start removeUnreachable. Operand 1396 states. [2018-06-22 10:31:18,564 INFO ]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 20064 transitions. [2018-06-22 10:31:18,564 INFO ]: Start accepts. Automaton has 1396 states and 20064 transitions. Word has length 29 [2018-06-22 10:31:18,564 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:31:18,564 INFO ]: Abstraction has 1396 states and 20064 transitions. [2018-06-22 10:31:18,564 INFO ]: Interpolant automaton has 14 states. [2018-06-22 10:31:18,564 INFO ]: Start isEmpty. Operand 1396 states and 20064 transitions. [2018-06-22 10:31:18,575 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:31:18,575 INFO ]: Found error trace [2018-06-22 10:31:18,575 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:31:18,575 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:31:18,576 INFO ]: Analyzing trace with hash -1032577155, now seen corresponding path program 1 times [2018-06-22 10:31:18,576 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:31:18,576 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:31:18,577 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:31:18,577 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:31:18,577 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:31:18,620 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:31:18,838 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:31:18,838 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:31:18,838 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 10:31:18,838 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:31:18,838 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:31:18,838 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:31:18,838 INFO ]: Start difference. First operand 1396 states and 20064 transitions. Second operand 7 states. [2018-06-22 10:31:20,130 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:31:20,131 INFO ]: Finished difference Result 1411 states and 20229 transitions. [2018-06-22 10:31:20,131 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 10:31:20,131 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 10:31:20,131 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:31:20,274 INFO ]: With dead ends: 1411 [2018-06-22 10:31:20,274 INFO ]: Without dead ends: 1411 [2018-06-22 10:31:20,275 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:31:20,276 INFO ]: Start minimizeSevpa. Operand 1411 states. [2018-06-22 10:31:21,913 INFO ]: Finished minimizeSevpa. Reduced states from 1411 to 1398. [2018-06-22 10:31:21,913 INFO ]: Start removeUnreachable. Operand 1398 states. [2018-06-22 10:31:22,014 INFO ]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 19976 transitions. [2018-06-22 10:31:22,014 INFO ]: Start accepts. Automaton has 1398 states and 19976 transitions. Word has length 21 [2018-06-22 10:31:22,014 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:31:22,014 INFO ]: Abstraction has 1398 states and 19976 transitions. [2018-06-22 10:31:22,014 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:31:22,014 INFO ]: Start isEmpty. Operand 1398 states and 19976 transitions. [2018-06-22 10:31:22,025 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:31:22,025 INFO ]: Found error trace [2018-06-22 10:31:22,025 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:31:22,025 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:31:22,028 INFO ]: Analyzing trace with hash -1284845133, now seen corresponding path program 1 times [2018-06-22 10:31:22,028 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:31:22,028 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:31:22,029 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:31:22,029 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:31:22,029 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:31:22,066 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:31:22,314 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:31:22,314 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:31:22,314 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 10:31:22,314 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:31:22,314 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:31:22,314 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:31:22,314 INFO ]: Start difference. First operand 1398 states and 19976 transitions. Second operand 7 states. [2018-06-22 10:31:23,360 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:31:23,360 INFO ]: Finished difference Result 1751 states and 34389 transitions. [2018-06-22 10:31:23,361 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 10:31:23,361 INFO ]: Start accepts. Automaton has 7 states. Word has length 25 [2018-06-22 10:31:23,361 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:31:23,589 INFO ]: With dead ends: 1751 [2018-06-22 10:31:23,589 INFO ]: Without dead ends: 1751 [2018-06-22 10:31:23,589 INFO ]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:31:23,590 INFO ]: Start minimizeSevpa. Operand 1751 states. [2018-06-22 10:31:26,993 INFO ]: Finished minimizeSevpa. Reduced states from 1751 to 1613. [2018-06-22 10:31:26,993 INFO ]: Start removeUnreachable. Operand 1613 states. [2018-06-22 10:31:27,184 INFO ]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 29172 transitions. [2018-06-22 10:31:27,184 INFO ]: Start accepts. Automaton has 1613 states and 29172 transitions. Word has length 25 [2018-06-22 10:31:27,185 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:31:27,185 INFO ]: Abstraction has 1613 states and 29172 transitions. [2018-06-22 10:31:27,185 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:31:27,185 INFO ]: Start isEmpty. Operand 1613 states and 29172 transitions. [2018-06-22 10:31:27,192 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:31:27,192 INFO ]: Found error trace [2018-06-22 10:31:27,192 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:31:27,192 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:31:27,193 INFO ]: Analyzing trace with hash 1703169844, now seen corresponding path program 1 times [2018-06-22 10:31:27,193 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:31:27,193 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:31:27,193 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:31:27,193 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:31:27,193 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:31:27,235 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:31:27,428 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:31:27,429 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:31:27,429 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 10:31:27,429 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:31:27,429 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:31:27,429 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:31:27,429 INFO ]: Start difference. First operand 1613 states and 29172 transitions. Second operand 7 states. [2018-06-22 10:31:28,729 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:31:28,730 INFO ]: Finished difference Result 1772 states and 34036 transitions. [2018-06-22 10:31:28,730 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 10:31:28,730 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 10:31:28,730 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:31:28,983 INFO ]: With dead ends: 1772 [2018-06-22 10:31:28,983 INFO ]: Without dead ends: 1772 [2018-06-22 10:31:28,983 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:31:28,985 INFO ]: Start minimizeSevpa. Operand 1772 states. Received shutdown request... [2018-06-22 10:31:29,618 WARN ]: Verification canceled [2018-06-22 10:31:29,621 WARN ]: Timeout [2018-06-22 10:31:29,621 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:31:29 BoogieIcfgContainer [2018-06-22 10:31:29,621 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:31:29,622 INFO ]: Toolchain (without parser) took 55548.03 ms. Allocated memory was 321.9 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 291.4 MB in the beginning and 961.2 MB in the end (delta: -669.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 10:31:29,624 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 309.9 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:31:29,624 INFO ]: ChcToBoogie took 113.46 ms. Allocated memory is still 321.9 MB. Free memory was 289.2 MB in the beginning and 284.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 3.6 GB. [2018-06-22 10:31:29,624 INFO ]: Boogie Preprocessor took 103.29 ms. Allocated memory is still 321.9 MB. Free memory was 284.8 MB in the beginning and 280.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 3.6 GB. [2018-06-22 10:31:29,625 INFO ]: RCFGBuilder took 2072.80 ms. Allocated memory was 321.9 MB in the beginning and 354.9 MB in the end (delta: 33.0 MB). Free memory was 280.4 MB in the beginning and 262.1 MB in the end (delta: 18.3 MB). Peak memory consumption was 107.7 MB. Max. memory is 3.6 GB. [2018-06-22 10:31:29,625 INFO ]: TraceAbstraction took 53231.65 ms. Allocated memory was 354.9 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 262.1 MB in the beginning and 961.2 MB in the end (delta: -699.1 MB). Peak memory consumption was 1.2 GB. Max. memory is 3.6 GB. [2018-06-22 10:31:29,627 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 309.9 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 113.46 ms. Allocated memory is still 321.9 MB. Free memory was 289.2 MB in the beginning and 284.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 103.29 ms. Allocated memory is still 321.9 MB. Free memory was 284.8 MB in the beginning and 280.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 3.6 GB. * RCFGBuilder took 2072.80 ms. Allocated memory was 321.9 MB in the beginning and 354.9 MB in the end (delta: 33.0 MB). Free memory was 280.4 MB in the beginning and 262.1 MB in the end (delta: 18.3 MB). Peak memory consumption was 107.7 MB. Max. memory is 3.6 GB. * TraceAbstraction took 53231.65 ms. Allocated memory was 354.9 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 262.1 MB in the beginning and 961.2 MB in the end (delta: -699.1 MB). Peak memory consumption was 1.2 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 executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 162 locations, 1 error locations. TIMEOUT Result, 53.1s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 34.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3741 SDtfs, 153 SDslu, 19978 SDs, 0 SdLazy, 24385 SolverSat, 1163 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1613occurred in iteration=9, 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: 13.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 457 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 15472 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1875 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 32/50 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.10.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-31-29-643.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full.10.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-31-29-643.csv Completed graceful shutdown