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.11.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:30:35,161 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:30:35,163 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:30:35,177 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:30:35,177 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:30:35,178 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:30:35,180 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:30:35,181 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:30:35,183 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:30:35,183 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:30:35,184 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:30:35,185 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:30:35,185 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:30:35,189 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:30:35,189 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:30:35,190 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:30:35,202 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:30:35,204 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:30:35,206 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:30:35,207 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:30:35,208 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:30:35,214 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:30:35,215 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:30:35,215 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:30:35,216 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:30:35,217 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:30:35,218 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:30:35,218 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:30:35,219 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:30:35,220 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:30:35,220 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:30:35,221 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:30:35,221 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:30:35,222 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:30:35,223 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:30:35,223 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 10:30:35,244 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:30:35,244 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:30:35,245 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:30:35,245 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:30:35,246 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:30:35,246 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:30:35,246 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:30:35,247 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:30:35,247 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:30:35,247 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:30:35,247 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:30:35,247 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:30:35,248 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:30:35,248 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:30:35,248 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:30:35,248 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:30:35,248 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:30:35,248 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:30:35,249 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:30:35,250 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:30:35,250 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:30:35,299 INFO ]: Repository-Root is: /tmp [2018-06-22 10:30:35,314 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:30:35,318 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:30:35,320 INFO ]: Initializing SmtParser... [2018-06-22 10:30:35,320 INFO ]: SmtParser initialized [2018-06-22 10:30:35,320 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.11.smt2 [2018-06-22 10:30:35,322 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 10:30:35,417 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.11.smt2 unknown [2018-06-22 10:30:36,364 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.11.smt2 [2018-06-22 10:30:36,371 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:30:36,377 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:30:36,377 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:30:36,377 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:30:36,378 INFO ]: ChcToBoogie initialized [2018-06-22 10:30:36,381 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:30:36" (1/1) ... [2018-06-22 10:30:36,539 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:36 Unit [2018-06-22 10:30:36,539 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:30:36,540 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:30:36,540 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:30:36,540 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:30:36,562 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:36" (1/1) ... [2018-06-22 10:30:36,562 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:36" (1/1) ... [2018-06-22 10:30:36,591 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:36" (1/1) ... [2018-06-22 10:30:36,600 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:36" (1/1) ... [2018-06-22 10:30:36,634 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:36" (1/1) ... [2018-06-22 10:30:36,639 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:36" (1/1) ... [2018-06-22 10:30:36,645 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:36" (1/1) ... [2018-06-22 10:30:36,653 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:30:36,653 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:30:36,653 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:30:36,653 INFO ]: RCFGBuilder initialized [2018-06-22 10:30:36,659 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:36" (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 10:30:36,674 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:30:36,674 INFO ]: Found specification of procedure False [2018-06-22 10:30:36,674 INFO ]: Found implementation of procedure False [2018-06-22 10:30:36,674 INFO ]: Specification and implementation of procedure step_lturn__bar given in one single declaration [2018-06-22 10:30:36,674 INFO ]: Found specification of procedure step_lturn__bar [2018-06-22 10:30:36,674 INFO ]: Found implementation of procedure step_lturn__bar [2018-06-22 10:30:36,674 INFO ]: Specification and implementation of procedure combined_lturn__bar given in one single declaration [2018-06-22 10:30:36,674 INFO ]: Found specification of procedure combined_lturn__bar [2018-06-22 10:30:36,674 INFO ]: Found implementation of procedure combined_lturn__bar [2018-06-22 10:30:36,674 INFO ]: Specification and implementation of procedure lturn__bar given in one single declaration [2018-06-22 10:30:36,674 INFO ]: Found specification of procedure lturn__bar [2018-06-22 10:30:36,674 INFO ]: Found implementation of procedure lturn__bar [2018-06-22 10:30:36,674 INFO ]: Specification and implementation of procedure combined_lturn given in one single declaration [2018-06-22 10:30:36,674 INFO ]: Found specification of procedure combined_lturn [2018-06-22 10:30:36,674 INFO ]: Found implementation of procedure combined_lturn [2018-06-22 10:30:36,674 INFO ]: Specification and implementation of procedure lturn given in one single declaration [2018-06-22 10:30:36,674 INFO ]: Found specification of procedure lturn [2018-06-22 10:30:36,674 INFO ]: Found implementation of procedure lturn [2018-06-22 10:30:36,674 INFO ]: Specification and implementation of procedure step_lturn given in one single declaration [2018-06-22 10:30:36,674 INFO ]: Found specification of procedure step_lturn [2018-06-22 10:30:36,674 INFO ]: Found implementation of procedure step_lturn [2018-06-22 10:30:36,674 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:30:36,674 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:30:36,674 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 10:30:38,591 INFO ]: Using library mode [2018-06-22 10:30:38,592 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:30:38 BoogieIcfgContainer [2018-06-22 10:30:38,592 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:30:38,596 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:30:38,596 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:30:38,602 INFO ]: TraceAbstraction initialized [2018-06-22 10:30:38,602 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:30:36" (1/3) ... [2018-06-22 10:30:38,603 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29de3228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:30:38, skipping insertion in model container [2018-06-22 10:30:38,603 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:36" (2/3) ... [2018-06-22 10:30:38,603 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29de3228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:30:38, skipping insertion in model container [2018-06-22 10:30:38,603 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:30:38" (3/3) ... [2018-06-22 10:30:38,606 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:30:38,617 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:30:38,633 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:30:38,689 INFO ]: Using default assertion order modulation [2018-06-22 10:30:38,690 INFO ]: Interprodecural is true [2018-06-22 10:30:38,690 INFO ]: Hoare is false [2018-06-22 10:30:38,690 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:30:38,690 INFO ]: Backedges is TWOTRACK [2018-06-22 10:30:38,690 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:30:38,690 INFO ]: Difference is false [2018-06-22 10:30:38,690 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:30:38,690 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:30:38,718 INFO ]: Start isEmpty. Operand 162 states. [2018-06-22 10:30:38,766 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:30:38,767 INFO ]: Found error trace [2018-06-22 10:30:38,768 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:38,768 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:38,773 INFO ]: Analyzing trace with hash 521170273, now seen corresponding path program 1 times [2018-06-22 10:30:38,775 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:38,775 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:38,826 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:38,826 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:38,826 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:39,017 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:39,195 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:30:39,197 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:39,198 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 10:30:39,200 INFO ]: Interpolant automaton has 2 states [2018-06-22 10:30:39,217 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 10:30:39,217 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 10:30:39,220 INFO ]: Start difference. First operand 162 states. Second operand 2 states. [2018-06-22 10:30:39,280 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:39,309 INFO ]: Finished difference Result 153 states and 316 transitions. [2018-06-22 10:30:39,309 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 10:30:39,311 INFO ]: Start accepts. Automaton has 2 states. Word has length 17 [2018-06-22 10:30:39,311 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:39,338 INFO ]: With dead ends: 153 [2018-06-22 10:30:39,338 INFO ]: Without dead ends: 143 [2018-06-22 10:30:39,342 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 10:30:39,361 INFO ]: Start minimizeSevpa. Operand 143 states. [2018-06-22 10:30:39,456 INFO ]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-06-22 10:30:39,459 INFO ]: Start removeUnreachable. Operand 143 states. [2018-06-22 10:30:39,470 INFO ]: Finished removeUnreachable. Reduced from 143 states to 143 states and 302 transitions. [2018-06-22 10:30:39,471 INFO ]: Start accepts. Automaton has 143 states and 302 transitions. Word has length 17 [2018-06-22 10:30:39,473 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:39,473 INFO ]: Abstraction has 143 states and 302 transitions. [2018-06-22 10:30:39,473 INFO ]: Interpolant automaton has 2 states. [2018-06-22 10:30:39,473 INFO ]: Start isEmpty. Operand 143 states and 302 transitions. [2018-06-22 10:30:39,486 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:30:39,486 INFO ]: Found error trace [2018-06-22 10:30:39,486 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:39,486 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:39,487 INFO ]: Analyzing trace with hash -566947735, now seen corresponding path program 1 times [2018-06-22 10:30:39,487 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:39,487 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:39,488 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:39,488 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:39,488 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:39,612 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:40,117 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:30:40,117 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:40,117 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 10:30:40,119 INFO ]: Interpolant automaton has 5 states [2018-06-22 10:30:40,119 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 10:30:40,119 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 10:30:40,119 INFO ]: Start difference. First operand 143 states and 302 transitions. Second operand 5 states. [2018-06-22 10:30:43,540 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:43,540 INFO ]: Finished difference Result 203 states and 579 transitions. [2018-06-22 10:30:43,541 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 10:30:43,541 INFO ]: Start accepts. Automaton has 5 states. Word has length 17 [2018-06-22 10:30:43,541 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:43,553 INFO ]: With dead ends: 203 [2018-06-22 10:30:43,553 INFO ]: Without dead ends: 203 [2018-06-22 10:30:43,554 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 10:30:43,554 INFO ]: Start minimizeSevpa. Operand 203 states. [2018-06-22 10:30:43,661 INFO ]: Finished minimizeSevpa. Reduced states from 203 to 201. [2018-06-22 10:30:43,661 INFO ]: Start removeUnreachable. Operand 201 states. [2018-06-22 10:30:43,668 INFO ]: Finished removeUnreachable. Reduced from 201 states to 201 states and 577 transitions. [2018-06-22 10:30:43,669 INFO ]: Start accepts. Automaton has 201 states and 577 transitions. Word has length 17 [2018-06-22 10:30:43,669 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:43,669 INFO ]: Abstraction has 201 states and 577 transitions. [2018-06-22 10:30:43,669 INFO ]: Interpolant automaton has 5 states. [2018-06-22 10:30:43,669 INFO ]: Start isEmpty. Operand 201 states and 577 transitions. [2018-06-22 10:30:43,677 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:30:43,677 INFO ]: Found error trace [2018-06-22 10:30:43,678 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:43,678 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:43,678 INFO ]: Analyzing trace with hash 993076659, now seen corresponding path program 1 times [2018-06-22 10:30:43,678 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:43,678 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:43,679 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:43,679 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:43,679 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:43,727 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:44,199 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:30:44,199 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:44,199 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:30:44,199 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:30:44,199 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:30:44,199 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:44,199 INFO ]: Start difference. First operand 201 states and 577 transitions. Second operand 6 states. [2018-06-22 10:30:46,061 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:46,061 INFO ]: Finished difference Result 292 states and 1099 transitions. [2018-06-22 10:30:46,062 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:30:46,062 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:30:46,062 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:46,074 INFO ]: With dead ends: 292 [2018-06-22 10:30:46,074 INFO ]: Without dead ends: 292 [2018-06-22 10:30:46,074 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 10:30:46,075 INFO ]: Start minimizeSevpa. Operand 292 states. [2018-06-22 10:30:46,180 INFO ]: Finished minimizeSevpa. Reduced states from 292 to 273. [2018-06-22 10:30:46,180 INFO ]: Start removeUnreachable. Operand 273 states. [2018-06-22 10:30:46,188 INFO ]: Finished removeUnreachable. Reduced from 273 states to 273 states and 1032 transitions. [2018-06-22 10:30:46,188 INFO ]: Start accepts. Automaton has 273 states and 1032 transitions. Word has length 17 [2018-06-22 10:30:46,188 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:46,188 INFO ]: Abstraction has 273 states and 1032 transitions. [2018-06-22 10:30:46,188 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:30:46,189 INFO ]: Start isEmpty. Operand 273 states and 1032 transitions. [2018-06-22 10:30:46,193 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:30:46,193 INFO ]: Found error trace [2018-06-22 10:30:46,193 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:46,193 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:46,193 INFO ]: Analyzing trace with hash 377662417, now seen corresponding path program 1 times [2018-06-22 10:30:46,193 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:46,193 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:46,194 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:46,194 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:46,194 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:46,230 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:46,506 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:30:46,507 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:46,507 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:30:46,507 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:30:46,507 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:30:46,507 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:46,507 INFO ]: Start difference. First operand 273 states and 1032 transitions. Second operand 6 states. [2018-06-22 10:30:48,473 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:48,474 INFO ]: Finished difference Result 337 states and 1471 transitions. [2018-06-22 10:30:48,478 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:30:48,478 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:30:48,478 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:48,490 INFO ]: With dead ends: 337 [2018-06-22 10:30:48,490 INFO ]: Without dead ends: 337 [2018-06-22 10:30:48,491 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 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 10:30:48,491 INFO ]: Start minimizeSevpa. Operand 337 states. [2018-06-22 10:30:48,635 INFO ]: Finished minimizeSevpa. Reduced states from 337 to 273. [2018-06-22 10:30:48,636 INFO ]: Start removeUnreachable. Operand 273 states. [2018-06-22 10:30:48,641 INFO ]: Finished removeUnreachable. Reduced from 273 states to 273 states and 1032 transitions. [2018-06-22 10:30:48,641 INFO ]: Start accepts. Automaton has 273 states and 1032 transitions. Word has length 17 [2018-06-22 10:30:48,641 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:48,642 INFO ]: Abstraction has 273 states and 1032 transitions. [2018-06-22 10:30:48,642 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:30:48,642 INFO ]: Start isEmpty. Operand 273 states and 1032 transitions. [2018-06-22 10:30:48,646 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:30:48,646 INFO ]: Found error trace [2018-06-22 10:30:48,646 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:48,646 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:48,646 INFO ]: Analyzing trace with hash 874130749, now seen corresponding path program 1 times [2018-06-22 10:30:48,646 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:48,646 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:48,648 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:48,648 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:48,648 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:48,703 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:48,878 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:30:48,879 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:48,879 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:30:48,879 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:30:48,879 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:30:48,879 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:48,879 INFO ]: Start difference. First operand 273 states and 1032 transitions. Second operand 6 states. [2018-06-22 10:30:51,739 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:51,740 INFO ]: Finished difference Result 407 states and 2065 transitions. [2018-06-22 10:30:51,740 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:30:51,740 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:30:51,740 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:51,755 INFO ]: With dead ends: 407 [2018-06-22 10:30:51,755 INFO ]: Without dead ends: 407 [2018-06-22 10:30:51,756 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 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 10:30:51,756 INFO ]: Start minimizeSevpa. Operand 407 states. [2018-06-22 10:30:51,981 INFO ]: Finished minimizeSevpa. Reduced states from 407 to 390. [2018-06-22 10:30:51,981 INFO ]: Start removeUnreachable. Operand 390 states. [2018-06-22 10:30:51,991 INFO ]: Finished removeUnreachable. Reduced from 390 states to 390 states and 2002 transitions. [2018-06-22 10:30:51,991 INFO ]: Start accepts. Automaton has 390 states and 2002 transitions. Word has length 17 [2018-06-22 10:30:51,991 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:51,991 INFO ]: Abstraction has 390 states and 2002 transitions. [2018-06-22 10:30:51,991 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:30:51,991 INFO ]: Start isEmpty. Operand 390 states and 2002 transitions. [2018-06-22 10:30:51,997 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:30:51,997 INFO ]: Found error trace [2018-06-22 10:30:51,997 INFO ]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:51,997 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:51,997 INFO ]: Analyzing trace with hash -309827203, now seen corresponding path program 1 times [2018-06-22 10:30:51,997 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:51,997 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:51,998 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:51,998 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:51,998 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:52,035 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:52,546 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:30:52,546 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:30:52,546 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 10:30:52,552 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:52,669 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:52,684 INFO ]: Computing forward predicates... [2018-06-22 10:30:52,734 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:30:52,774 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:30:52,774 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-06-22 10:30:52,774 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:30:52,775 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:30:52,775 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:30:52,775 INFO ]: Start difference. First operand 390 states and 2002 transitions. Second operand 7 states. [2018-06-22 10:30:57,324 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:57,324 INFO ]: Finished difference Result 755 states and 6480 transitions. [2018-06-22 10:30:57,326 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 10:30:57,326 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 10:30:57,326 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:57,409 INFO ]: With dead ends: 755 [2018-06-22 10:30:57,460 INFO ]: Without dead ends: 755 [2018-06-22 10:30:57,460 INFO ]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:30:57,461 INFO ]: Start minimizeSevpa. Operand 755 states. [2018-06-22 10:30:58,288 INFO ]: Finished minimizeSevpa. Reduced states from 755 to 751. [2018-06-22 10:30:58,288 INFO ]: Start removeUnreachable. Operand 751 states. [2018-06-22 10:30:58,326 INFO ]: Finished removeUnreachable. Reduced from 751 states to 751 states and 6465 transitions. [2018-06-22 10:30:58,326 INFO ]: Start accepts. Automaton has 751 states and 6465 transitions. Word has length 21 [2018-06-22 10:30:58,326 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:58,326 INFO ]: Abstraction has 751 states and 6465 transitions. [2018-06-22 10:30:58,326 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:30:58,326 INFO ]: Start isEmpty. Operand 751 states and 6465 transitions. [2018-06-22 10:30:58,338 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:30:58,338 INFO ]: Found error trace [2018-06-22 10:30:58,338 INFO ]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:58,338 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:58,339 INFO ]: Analyzing trace with hash -517355003, now seen corresponding path program 1 times [2018-06-22 10:30:58,339 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:58,339 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:58,340 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:58,340 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:58,340 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:58,388 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:59,169 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:30:59,170 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:30:59,170 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) [2018-06-22 10:30:59,185 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:30:59,299 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:59,304 INFO ]: Computing forward predicates... [2018-06-22 10:30:59,596 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:30:59,616 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:30:59,616 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2018-06-22 10:30:59,616 INFO ]: Interpolant automaton has 12 states [2018-06-22 10:30:59,617 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 10:30:59,617 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-22 10:30:59,617 INFO ]: Start difference. First operand 751 states and 6465 transitions. Second operand 12 states. [2018-06-22 10:31:13,372 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:31:13,373 INFO ]: Finished difference Result 3287 states and 58861 transitions. [2018-06-22 10:31:13,374 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-06-22 10:31:13,374 INFO ]: Start accepts. Automaton has 12 states. Word has length 25 [2018-06-22 10:31:13,374 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:31:14,082 INFO ]: With dead ends: 3287 [2018-06-22 10:31:14,082 INFO ]: Without dead ends: 3287 [2018-06-22 10:31:14,083 INFO ]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-06-22 10:31:14,085 INFO ]: Start minimizeSevpa. Operand 3287 states. [2018-06-22 10:31:20,188 INFO ]: Finished minimizeSevpa. Reduced states from 3287 to 3243. [2018-06-22 10:31:20,188 INFO ]: Start removeUnreachable. Operand 3243 states. [2018-06-22 10:31:21,141 INFO ]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 57630 transitions. [2018-06-22 10:31:21,141 INFO ]: Start accepts. Automaton has 3243 states and 57630 transitions. Word has length 25 [2018-06-22 10:31:21,141 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:31:21,141 INFO ]: Abstraction has 3243 states and 57630 transitions. [2018-06-22 10:31:21,141 INFO ]: Interpolant automaton has 12 states. [2018-06-22 10:31:21,141 INFO ]: Start isEmpty. Operand 3243 states and 57630 transitions. [2018-06-22 10:31:21,158 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:31:21,159 INFO ]: Found error trace [2018-06-22 10:31:21,159 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 10:31:21,159 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:31:21,159 INFO ]: Analyzing trace with hash 25694201, now seen corresponding path program 1 times [2018-06-22 10:31:21,159 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:31:21,159 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:31:21,160 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:31:21,160 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:31:21,160 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:31:21,201 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:31:21,794 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:31:21,794 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:31:21,794 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-22 10:31:21,807 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:31:21,912 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:31:21,916 INFO ]: Computing forward predicates... [2018-06-22 10:31:22,316 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:31:22,342 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:31:22,342 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2018-06-22 10:31:22,342 INFO ]: Interpolant automaton has 10 states [2018-06-22 10:31:22,342 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 10:31:22,342 INFO ]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-06-22 10:31:22,342 INFO ]: Start difference. First operand 3243 states and 57630 transitions. Second operand 10 states. [2018-06-22 10:31:30,256 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:31:30,256 INFO ]: Finished difference Result 7870 states and 197290 transitions. [2018-06-22 10:31:30,256 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-06-22 10:31:30,256 INFO ]: Start accepts. Automaton has 10 states. Word has length 21 [2018-06-22 10:31:30,256 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:31:32,617 INFO ]: With dead ends: 7870 [2018-06-22 10:31:32,617 INFO ]: Without dead ends: 7870 [2018-06-22 10:31:32,617 INFO ]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-06-22 10:31:32,621 INFO ]: Start minimizeSevpa. Operand 7870 states. Received shutdown request... [2018-06-22 10:31:35,833 WARN ]: Verification canceled [2018-06-22 10:31:35,836 WARN ]: Timeout [2018-06-22 10:31:35,836 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:31:35 BoogieIcfgContainer [2018-06-22 10:31:35,836 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:31:35,837 INFO ]: Toolchain (without parser) took 59465.53 ms. Allocated memory was 311.4 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 196.2 MB in the beginning and 871.9 MB in the end (delta: -675.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 10:31:35,839 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 311.4 MB. Free memory is still 277.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:31:35,839 INFO ]: ChcToBoogie took 161.94 ms. Allocated memory was 311.4 MB in the beginning and 321.4 MB in the end (delta: 10.0 MB). Free memory was 196.2 MB in the beginning and 292.2 MB in the end (delta: -96.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:31:35,840 INFO ]: Boogie Preprocessor took 113.10 ms. Allocated memory is still 321.4 MB. Free memory was 292.2 MB in the beginning and 288.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 3.6 GB. [2018-06-22 10:31:35,840 INFO ]: RCFGBuilder took 1938.63 ms. Allocated memory was 321.4 MB in the beginning and 351.8 MB in the end (delta: 30.4 MB). Free memory was 288.4 MB in the beginning and 265.1 MB in the end (delta: 23.3 MB). Peak memory consumption was 114.1 MB. Max. memory is 3.6 GB. [2018-06-22 10:31:35,840 INFO ]: TraceAbstraction took 57240.17 ms. Allocated memory was 351.8 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 265.1 MB in the beginning and 871.9 MB in the end (delta: -606.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 10:31:35,843 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 311.4 MB. Free memory is still 277.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 161.94 ms. Allocated memory was 311.4 MB in the beginning and 321.4 MB in the end (delta: 10.0 MB). Free memory was 196.2 MB in the beginning and 292.2 MB in the end (delta: -96.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 113.10 ms. Allocated memory is still 321.4 MB. Free memory was 292.2 MB in the beginning and 288.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1938.63 ms. Allocated memory was 321.4 MB in the beginning and 351.8 MB in the end (delta: 30.4 MB). Free memory was 288.4 MB in the beginning and 265.1 MB in the end (delta: 23.3 MB). Peak memory consumption was 114.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 57240.17 ms. Allocated memory was 351.8 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 265.1 MB in the beginning and 871.9 MB in the end (delta: -606.8 MB). Peak memory consumption was 1.3 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, 57.1s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 39.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3340 SDtfs, 195 SDslu, 15071 SDs, 0 SdLazy, 22714 SolverSat, 2814 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3243occurred in iteration=7, 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: 11.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 150 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 7872 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2752 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 17/45 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.11.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-31-35-861.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full.11.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-31-35-861.csv Completed graceful shutdown