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/graham-scan-full.31.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:38:35,298 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:38:35,300 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:38:35,313 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:38:35,313 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:38:35,314 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:38:35,315 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:38:35,318 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:38:35,320 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:38:35,320 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:38:35,322 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:38:35,322 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:38:35,323 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:38:35,324 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:38:35,325 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:38:35,325 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:38:35,329 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:38:35,330 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:38:35,334 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:38:35,334 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:38:35,335 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:38:35,349 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:38:35,349 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:38:35,350 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:38:35,350 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:38:35,351 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:38:35,352 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:38:35,352 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:38:35,353 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:38:35,353 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:38:35,354 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:38:35,354 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:38:35,355 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:38:35,355 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:38:35,363 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:38:35,363 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 10:38:35,381 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:38:35,381 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:38:35,382 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:38:35,382 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:38:35,383 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:38:35,383 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:38:35,383 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:38:35,383 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:38:35,384 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:38:35,384 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:38:35,384 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:38:35,384 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:38:35,384 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:38:35,385 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:38:35,385 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:38:35,385 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:38:35,385 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:38:35,385 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:38:35,385 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:38:35,387 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:38:35,387 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:38:35,431 INFO ]: Repository-Root is: /tmp [2018-06-22 10:38:35,444 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:38:35,450 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:38:35,451 INFO ]: Initializing SmtParser... [2018-06-22 10:38:35,452 INFO ]: SmtParser initialized [2018-06-22 10:38:35,452 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/graham-scan-full.31.smt2 [2018-06-22 10:38:35,454 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 10:38:35,540 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/graham-scan-full.31.smt2 unknown [2018-06-22 10:38:36,075 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/graham-scan-full.31.smt2 [2018-06-22 10:38:36,089 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:38:36,102 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:38:36,103 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:38:36,103 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:38:36,103 INFO ]: ChcToBoogie initialized [2018-06-22 10:38:36,106 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:38:36" (1/1) ... [2018-06-22 10:38:36,188 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:38:36 Unit [2018-06-22 10:38:36,189 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:38:36,189 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:38:36,189 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:38:36,189 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:38:36,211 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:38:36" (1/1) ... [2018-06-22 10:38:36,211 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:38:36" (1/1) ... [2018-06-22 10:38:36,232 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:38:36" (1/1) ... [2018-06-22 10:38:36,232 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:38:36" (1/1) ... [2018-06-22 10:38:36,257 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:38:36" (1/1) ... [2018-06-22 10:38:36,261 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:38:36" (1/1) ... [2018-06-22 10:38:36,268 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:38:36" (1/1) ... [2018-06-22 10:38:36,272 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:38:36,272 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:38:36,272 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:38:36,272 INFO ]: RCFGBuilder initialized [2018-06-22 10:38:36,273 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:38:36" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:38:36,288 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:38:36,288 INFO ]: Found specification of procedure False [2018-06-22 10:38:36,288 INFO ]: Found implementation of procedure False [2018-06-22 10:38:36,289 INFO ]: Specification and implementation of procedure combined_lturn__bar given in one single declaration [2018-06-22 10:38:36,289 INFO ]: Found specification of procedure combined_lturn__bar [2018-06-22 10:38:36,289 INFO ]: Found implementation of procedure combined_lturn__bar [2018-06-22 10:38:36,289 INFO ]: Specification and implementation of procedure lturn__bar given in one single declaration [2018-06-22 10:38:36,289 INFO ]: Found specification of procedure lturn__bar [2018-06-22 10:38:36,289 INFO ]: Found implementation of procedure lturn__bar [2018-06-22 10:38:36,289 INFO ]: Specification and implementation of procedure step_lturn given in one single declaration [2018-06-22 10:38:36,289 INFO ]: Found specification of procedure step_lturn [2018-06-22 10:38:36,289 INFO ]: Found implementation of procedure step_lturn [2018-06-22 10:38:36,289 INFO ]: Specification and implementation of procedure step_lturn__bar given in one single declaration [2018-06-22 10:38:36,289 INFO ]: Found specification of procedure step_lturn__bar [2018-06-22 10:38:36,289 INFO ]: Found implementation of procedure step_lturn__bar [2018-06-22 10:38:36,289 INFO ]: Specification and implementation of procedure combined_lturn given in one single declaration [2018-06-22 10:38:36,289 INFO ]: Found specification of procedure combined_lturn [2018-06-22 10:38:36,289 INFO ]: Found implementation of procedure combined_lturn [2018-06-22 10:38:36,289 INFO ]: Specification and implementation of procedure lturn given in one single declaration [2018-06-22 10:38:36,289 INFO ]: Found specification of procedure lturn [2018-06-22 10:38:36,289 INFO ]: Found implementation of procedure lturn [2018-06-22 10:38:36,289 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:38:36,289 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:38:36,289 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 10:38:37,549 INFO ]: Using library mode [2018-06-22 10:38:37,549 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:38:37 BoogieIcfgContainer [2018-06-22 10:38:37,549 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:38:37,551 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:38:37,551 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:38:37,554 INFO ]: TraceAbstraction initialized [2018-06-22 10:38:37,554 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:38:36" (1/3) ... [2018-06-22 10:38:37,555 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f176d3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:38:37, skipping insertion in model container [2018-06-22 10:38:37,555 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:38:36" (2/3) ... [2018-06-22 10:38:37,555 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f176d3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:38:37, skipping insertion in model container [2018-06-22 10:38:37,555 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:38:37" (3/3) ... [2018-06-22 10:38:37,557 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:38:37,567 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:38:37,577 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:38:37,617 INFO ]: Using default assertion order modulation [2018-06-22 10:38:37,617 INFO ]: Interprodecural is true [2018-06-22 10:38:37,617 INFO ]: Hoare is false [2018-06-22 10:38:37,617 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:38:37,617 INFO ]: Backedges is TWOTRACK [2018-06-22 10:38:37,617 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:38:37,617 INFO ]: Difference is false [2018-06-22 10:38:37,617 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:38:37,617 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:38:37,637 INFO ]: Start isEmpty. Operand 162 states. [2018-06-22 10:38:37,672 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:38:37,672 INFO ]: Found error trace [2018-06-22 10:38:37,673 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:38:37,674 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:38:37,680 INFO ]: Analyzing trace with hash 195258625, now seen corresponding path program 1 times [2018-06-22 10:38:37,681 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:38:37,682 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:38:37,714 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:38:37,714 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:38:37,714 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:38:37,848 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:38:38,171 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:38:38,176 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:38:38,176 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 10:38:38,177 INFO ]: Interpolant automaton has 5 states [2018-06-22 10:38:38,192 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 10:38:38,193 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 10:38:38,195 INFO ]: Start difference. First operand 162 states. Second operand 5 states. [2018-06-22 10:38:40,988 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:38:40,988 INFO ]: Finished difference Result 240 states and 658 transitions. [2018-06-22 10:38:40,989 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 10:38:40,990 INFO ]: Start accepts. Automaton has 5 states. Word has length 17 [2018-06-22 10:38:40,990 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:38:41,019 INFO ]: With dead ends: 240 [2018-06-22 10:38:41,020 INFO ]: Without dead ends: 226 [2018-06-22 10:38:41,022 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 10:38:41,041 INFO ]: Start minimizeSevpa. Operand 226 states. [2018-06-22 10:38:41,244 INFO ]: Finished minimizeSevpa. Reduced states from 226 to 214. [2018-06-22 10:38:41,246 INFO ]: Start removeUnreachable. Operand 214 states. [2018-06-22 10:38:41,254 INFO ]: Finished removeUnreachable. Reduced from 214 states to 214 states and 604 transitions. [2018-06-22 10:38:41,256 INFO ]: Start accepts. Automaton has 214 states and 604 transitions. Word has length 17 [2018-06-22 10:38:41,257 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:38:41,257 INFO ]: Abstraction has 214 states and 604 transitions. [2018-06-22 10:38:41,257 INFO ]: Interpolant automaton has 5 states. [2018-06-22 10:38:41,257 INFO ]: Start isEmpty. Operand 214 states and 604 transitions. [2018-06-22 10:38:41,269 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:38:41,269 INFO ]: Found error trace [2018-06-22 10:38:41,269 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:38:41,270 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:38:41,270 INFO ]: Analyzing trace with hash 12472684, now seen corresponding path program 1 times [2018-06-22 10:38:41,270 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:38:41,270 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:38:41,271 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:38:41,271 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:38:41,271 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:38:41,303 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:38:41,742 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:38:41,742 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:38:41,742 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:38:41,743 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:38:41,743 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:38:41,743 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:38:41,744 INFO ]: Start difference. First operand 214 states and 604 transitions. Second operand 6 states. [2018-06-22 10:38:43,117 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:38:43,117 INFO ]: Finished difference Result 279 states and 1048 transitions. [2018-06-22 10:38:43,137 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:38:43,137 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:38:43,137 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:38:43,153 INFO ]: With dead ends: 279 [2018-06-22 10:38:43,153 INFO ]: Without dead ends: 279 [2018-06-22 10:38:43,154 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 10:38:43,154 INFO ]: Start minimizeSevpa. Operand 279 states. [2018-06-22 10:38:43,316 INFO ]: Finished minimizeSevpa. Reduced states from 279 to 273. [2018-06-22 10:38:43,316 INFO ]: Start removeUnreachable. Operand 273 states. [2018-06-22 10:38:43,324 INFO ]: Finished removeUnreachable. Reduced from 273 states to 273 states and 1031 transitions. [2018-06-22 10:38:43,324 INFO ]: Start accepts. Automaton has 273 states and 1031 transitions. Word has length 17 [2018-06-22 10:38:43,325 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:38:43,325 INFO ]: Abstraction has 273 states and 1031 transitions. [2018-06-22 10:38:43,325 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:38:43,326 INFO ]: Start isEmpty. Operand 273 states and 1031 transitions. [2018-06-22 10:38:43,343 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:38:43,343 INFO ]: Found error trace [2018-06-22 10:38:43,343 INFO ]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:38:43,343 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:38:43,344 INFO ]: Analyzing trace with hash 1175265040, now seen corresponding path program 1 times [2018-06-22 10:38:43,344 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:38:43,344 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:38:43,344 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:38:43,344 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:38:43,344 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:38:43,374 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:38:43,643 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:38:43,643 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:38:43,643 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 10:38:43,651 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:38:43,708 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:38:43,715 INFO ]: Computing forward predicates... [2018-06-22 10:38:43,768 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:38:43,804 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:38:43,804 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-06-22 10:38:43,805 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:38:43,805 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:38:43,805 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:38:43,805 INFO ]: Start difference. First operand 273 states and 1031 transitions. Second operand 7 states. [2018-06-22 10:38:47,975 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:38:47,975 INFO ]: Finished difference Result 546 states and 3453 transitions. [2018-06-22 10:38:47,976 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 10:38:47,976 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 10:38:47,976 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:38:48,020 INFO ]: With dead ends: 546 [2018-06-22 10:38:48,020 INFO ]: Without dead ends: 546 [2018-06-22 10:38:48,020 INFO ]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:38:48,021 INFO ]: Start minimizeSevpa. Operand 546 states. [2018-06-22 10:38:48,428 INFO ]: Finished minimizeSevpa. Reduced states from 546 to 540. [2018-06-22 10:38:48,429 INFO ]: Start removeUnreachable. Operand 540 states. [2018-06-22 10:38:48,449 INFO ]: Finished removeUnreachable. Reduced from 540 states to 540 states and 3427 transitions. [2018-06-22 10:38:48,450 INFO ]: Start accepts. Automaton has 540 states and 3427 transitions. Word has length 21 [2018-06-22 10:38:48,450 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:38:48,450 INFO ]: Abstraction has 540 states and 3427 transitions. [2018-06-22 10:38:48,450 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:38:48,450 INFO ]: Start isEmpty. Operand 540 states and 3427 transitions. [2018-06-22 10:38:48,463 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:38:48,463 INFO ]: Found error trace [2018-06-22 10:38:48,463 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:38:48,463 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:38:48,463 INFO ]: Analyzing trace with hash 1742225714, now seen corresponding path program 1 times [2018-06-22 10:38:48,464 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:38:48,464 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:38:48,465 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:38:48,465 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:38:48,465 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:38:48,499 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:38:48,885 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:38:48,885 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:38:48,885 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:38:48,885 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:38:48,885 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:38:48,885 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:38:48,885 INFO ]: Start difference. First operand 540 states and 3427 transitions. Second operand 6 states. [2018-06-22 10:38:52,316 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:38:52,316 INFO ]: Finished difference Result 632 states and 4107 transitions. [2018-06-22 10:38:52,316 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:38:52,316 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:38:52,317 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:38:52,357 INFO ]: With dead ends: 632 [2018-06-22 10:38:52,357 INFO ]: Without dead ends: 632 [2018-06-22 10:38:52,358 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 10:38:52,358 INFO ]: Start minimizeSevpa. Operand 632 states. [2018-06-22 10:38:52,761 INFO ]: Finished minimizeSevpa. Reduced states from 632 to 590. [2018-06-22 10:38:52,761 INFO ]: Start removeUnreachable. Operand 590 states. [2018-06-22 10:38:52,782 INFO ]: Finished removeUnreachable. Reduced from 590 states to 590 states and 3794 transitions. [2018-06-22 10:38:52,782 INFO ]: Start accepts. Automaton has 590 states and 3794 transitions. Word has length 17 [2018-06-22 10:38:52,782 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:38:52,782 INFO ]: Abstraction has 590 states and 3794 transitions. [2018-06-22 10:38:52,783 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:38:52,783 INFO ]: Start isEmpty. Operand 590 states and 3794 transitions. [2018-06-22 10:38:52,795 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:38:52,795 INFO ]: Found error trace [2018-06-22 10:38:52,795 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 10:38:52,795 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:38:52,796 INFO ]: Analyzing trace with hash -552451980, now seen corresponding path program 1 times [2018-06-22 10:38:52,796 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:38:52,796 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:38:52,796 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:38:52,796 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:38:52,796 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:38:52,831 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:38:53,341 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:38:53,341 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:38:53,341 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 10:38:53,355 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:38:53,417 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:38:53,420 INFO ]: Computing forward predicates... [2018-06-22 10:38:53,447 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:38:53,479 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:38:53,479 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-06-22 10:38:53,479 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:38:53,479 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:38:53,480 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:38:53,480 INFO ]: Start difference. First operand 590 states and 3794 transitions. Second operand 7 states. [2018-06-22 10:38:55,455 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:38:55,455 INFO ]: Finished difference Result 913 states and 7643 transitions. [2018-06-22 10:38:55,455 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 10:38:55,455 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 10:38:55,455 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:38:55,515 INFO ]: With dead ends: 913 [2018-06-22 10:38:55,515 INFO ]: Without dead ends: 913 [2018-06-22 10:38:55,515 INFO ]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-06-22 10:38:55,516 INFO ]: Start minimizeSevpa. Operand 913 states. [2018-06-22 10:38:56,190 INFO ]: Finished minimizeSevpa. Reduced states from 913 to 902. [2018-06-22 10:38:56,191 INFO ]: Start removeUnreachable. Operand 902 states. [2018-06-22 10:38:56,230 INFO ]: Finished removeUnreachable. Reduced from 902 states to 902 states and 7565 transitions. [2018-06-22 10:38:56,230 INFO ]: Start accepts. Automaton has 902 states and 7565 transitions. Word has length 21 [2018-06-22 10:38:56,230 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:38:56,230 INFO ]: Abstraction has 902 states and 7565 transitions. [2018-06-22 10:38:56,230 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:38:56,230 INFO ]: Start isEmpty. Operand 902 states and 7565 transitions. [2018-06-22 10:38:56,245 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:38:56,245 INFO ]: Found error trace [2018-06-22 10:38:56,246 INFO ]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:38:56,246 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:38:56,246 INFO ]: Analyzing trace with hash -954667754, now seen corresponding path program 1 times [2018-06-22 10:38:56,246 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:38:56,246 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:38:56,247 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:38:56,247 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:38:56,247 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:38:56,268 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:38:56,419 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:38:56,419 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:38:56,419 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:38:56,425 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:38:56,482 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:38:56,485 INFO ]: Computing forward predicates... [2018-06-22 10:38:56,506 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:38:56,538 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:38:56,538 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-06-22 10:38:56,538 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:38:56,539 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:38:56,539 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:38:56,539 INFO ]: Start difference. First operand 902 states and 7565 transitions. Second operand 7 states. [2018-06-22 10:38:59,979 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:38:59,980 INFO ]: Finished difference Result 1230 states and 11128 transitions. [2018-06-22 10:38:59,980 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 10:38:59,980 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 10:38:59,980 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:39:00,048 INFO ]: With dead ends: 1230 [2018-06-22 10:39:00,048 INFO ]: Without dead ends: 1230 [2018-06-22 10:39:00,048 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-06-22 10:39:00,049 INFO ]: Start minimizeSevpa. Operand 1230 states. [2018-06-22 10:39:00,805 INFO ]: Finished minimizeSevpa. Reduced states from 1230 to 1150. [2018-06-22 10:39:00,805 INFO ]: Start removeUnreachable. Operand 1150 states. [2018-06-22 10:39:00,857 INFO ]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 10593 transitions. [2018-06-22 10:39:00,857 INFO ]: Start accepts. Automaton has 1150 states and 10593 transitions. Word has length 21 [2018-06-22 10:39:00,857 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:39:00,857 INFO ]: Abstraction has 1150 states and 10593 transitions. [2018-06-22 10:39:00,857 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:39:00,858 INFO ]: Start isEmpty. Operand 1150 states and 10593 transitions. [2018-06-22 10:39:00,872 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:39:00,872 INFO ]: Found error trace [2018-06-22 10:39:00,872 INFO ]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:39:00,872 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:39:00,875 INFO ]: Analyzing trace with hash -711909851, now seen corresponding path program 2 times [2018-06-22 10:39:00,875 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:39:00,875 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:39:00,876 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:39:00,876 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:39:00,876 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:39:00,891 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:39:01,361 INFO ]: Checked inductivity of 19 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:39:01,361 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:39:01,361 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-22 10:39:01,378 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:39:01,436 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 10:39:01,436 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:39:01,439 INFO ]: Computing forward predicates... [2018-06-22 10:39:01,613 INFO ]: Checked inductivity of 19 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:39:01,644 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:39:01,644 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2018-06-22 10:39:01,645 INFO ]: Interpolant automaton has 12 states [2018-06-22 10:39:01,645 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 10:39:01,645 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-22 10:39:01,645 INFO ]: Start difference. First operand 1150 states and 10593 transitions. Second operand 12 states. [2018-06-22 10:39:26,060 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:39:26,060 INFO ]: Finished difference Result 7887 states and 155489 transitions. [2018-06-22 10:39:26,061 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-06-22 10:39:26,061 INFO ]: Start accepts. Automaton has 12 states. Word has length 25 [2018-06-22 10:39:26,061 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:39:27,765 INFO ]: With dead ends: 7887 [2018-06-22 10:39:27,765 INFO ]: Without dead ends: 7887 [2018-06-22 10:39:27,766 INFO ]: 0 DeclaredPredicates, 67 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=141, Invalid=981, Unknown=0, NotChecked=0, Total=1122 [2018-06-22 10:39:27,769 INFO ]: Start minimizeSevpa. Operand 7887 states. Received shutdown request... [2018-06-22 10:39:35,301 WARN ]: Verification canceled [2018-06-22 10:39:35,304 WARN ]: Timeout [2018-06-22 10:39:35,305 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:39:35 BoogieIcfgContainer [2018-06-22 10:39:35,305 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:39:35,306 INFO ]: Toolchain (without parser) took 59216.01 ms. Allocated memory was 308.3 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 247.7 MB in the beginning and 453.3 MB in the end (delta: -205.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 10:39:35,307 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:39:35,308 INFO ]: ChcToBoogie took 85.99 ms. Allocated memory is still 308.3 MB. Free memory was 247.7 MB in the beginning and 243.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:39:35,309 INFO ]: Boogie Preprocessor took 82.54 ms. Allocated memory is still 308.3 MB. Free memory was 243.7 MB in the beginning and 240.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:39:35,309 INFO ]: RCFGBuilder took 1276.97 ms. Allocated memory was 308.3 MB in the beginning and 326.1 MB in the end (delta: 17.8 MB). Free memory was 240.7 MB in the beginning and 294.7 MB in the end (delta: -54.0 MB). Peak memory consumption was 60.8 MB. Max. memory is 3.6 GB. [2018-06-22 10:39:35,310 INFO ]: TraceAbstraction took 57754.08 ms. Allocated memory was 326.1 MB in the beginning and 1.7 GB in the end (delta: 1.3 GB). Free memory was 294.7 MB in the beginning and 453.3 MB in the end (delta: -158.6 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-22 10:39:35,313 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 308.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 85.99 ms. Allocated memory is still 308.3 MB. Free memory was 247.7 MB in the beginning and 243.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 82.54 ms. Allocated memory is still 308.3 MB. Free memory was 243.7 MB in the beginning and 240.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1276.97 ms. Allocated memory was 308.3 MB in the beginning and 326.1 MB in the end (delta: 17.8 MB). Free memory was 240.7 MB in the beginning and 294.7 MB in the end (delta: -54.0 MB). Peak memory consumption was 60.8 MB. Max. memory is 3.6 GB. * TraceAbstraction took 57754.08 ms. Allocated memory was 326.1 MB in the beginning and 1.7 GB in the end (delta: 1.3 GB). Free memory was 294.7 MB in the beginning and 453.3 MB in the end (delta: -158.6 MB). Peak memory consumption was 1.4 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, 57.6s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 43.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3290 SDtfs, 171 SDslu, 15567 SDs, 0 SdLazy, 37600 SolverSat, 4988 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1150occurred in iteration=6, 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: 10.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 157 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 8432 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1705 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 31/83 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/graham-scan-full.31.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-39-35-337.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/graham-scan-full.31.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-39-35-337.csv Completed graceful shutdown