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/ch-triangle-location-nr.6.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:30:03,012 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:30:03,102 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:30:03,115 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:30:03,116 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:30:03,117 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:30:03,121 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:30:03,123 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:30:03,124 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:30:03,125 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:30:03,127 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:30:03,127 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:30:03,128 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:30:03,131 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:30:03,132 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:30:03,133 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:30:03,145 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:30:03,147 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:30:03,149 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:30:03,150 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:30:03,151 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:30:03,153 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:30:03,153 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:30:03,153 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:30:03,158 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:30:03,159 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:30:03,160 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:30:03,160 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:30:03,166 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:30:03,166 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:30:03,167 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:30:03,167 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:30:03,168 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:30:03,168 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:30:03,171 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:30:03,171 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 10:30:03,192 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:30:03,193 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:30:03,194 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:30:03,194 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:30:03,195 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:30:03,195 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:30:03,195 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:30:03,196 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:30:03,196 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:30:03,196 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:30:03,196 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:30:03,197 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:30:03,197 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:30:03,197 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:30:03,197 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:30:03,197 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:30:03,197 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:30:03,198 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:30:03,199 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:30:03,200 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:30:03,200 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:30:03,253 INFO ]: Repository-Root is: /tmp [2018-06-22 10:30:03,268 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:30:03,275 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:30:03,276 INFO ]: Initializing SmtParser... [2018-06-22 10:30:03,277 INFO ]: SmtParser initialized [2018-06-22 10:30:03,277 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.6.smt2 [2018-06-22 10:30:03,278 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 10:30:03,373 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.6.smt2 unknown [2018-06-22 10:30:04,390 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.6.smt2 [2018-06-22 10:30:04,398 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:30:04,404 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:30:04,409 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:30:04,409 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:30:04,409 INFO ]: ChcToBoogie initialized [2018-06-22 10:30:04,412 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:30:04" (1/1) ... [2018-06-22 10:30:04,476 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:04 Unit [2018-06-22 10:30:04,476 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:30:04,479 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:30:04,479 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:30:04,479 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:30:04,504 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:04" (1/1) ... [2018-06-22 10:30:04,504 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:04" (1/1) ... [2018-06-22 10:30:04,526 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:04" (1/1) ... [2018-06-22 10:30:04,526 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:04" (1/1) ... [2018-06-22 10:30:04,537 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:04" (1/1) ... [2018-06-22 10:30:04,541 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:04" (1/1) ... [2018-06-22 10:30:04,544 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:04" (1/1) ... [2018-06-22 10:30:04,547 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:30:04,548 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:30:04,548 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:30:04,548 INFO ]: RCFGBuilder initialized [2018-06-22 10:30:04,549 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:04" (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 10:30:04,564 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:30:04,564 INFO ]: Found specification of procedure False [2018-06-22 10:30:04,564 INFO ]: Found implementation of procedure False [2018-06-22 10:30:04,564 INFO ]: Specification and implementation of procedure step_lturn__bar given in one single declaration [2018-06-22 10:30:04,564 INFO ]: Found specification of procedure step_lturn__bar [2018-06-22 10:30:04,564 INFO ]: Found implementation of procedure step_lturn__bar [2018-06-22 10:30:04,564 INFO ]: Specification and implementation of procedure combined_lturn__bar given in one single declaration [2018-06-22 10:30:04,564 INFO ]: Found specification of procedure combined_lturn__bar [2018-06-22 10:30:04,564 INFO ]: Found implementation of procedure combined_lturn__bar [2018-06-22 10:30:04,564 INFO ]: Specification and implementation of procedure lturn__bar given in one single declaration [2018-06-22 10:30:04,564 INFO ]: Found specification of procedure lturn__bar [2018-06-22 10:30:04,564 INFO ]: Found implementation of procedure lturn__bar [2018-06-22 10:30:04,564 INFO ]: Specification and implementation of procedure step_lturn given in one single declaration [2018-06-22 10:30:04,564 INFO ]: Found specification of procedure step_lturn [2018-06-22 10:30:04,564 INFO ]: Found implementation of procedure step_lturn [2018-06-22 10:30:04,564 INFO ]: Specification and implementation of procedure combined_lturn given in one single declaration [2018-06-22 10:30:04,564 INFO ]: Found specification of procedure combined_lturn [2018-06-22 10:30:04,564 INFO ]: Found implementation of procedure combined_lturn [2018-06-22 10:30:04,564 INFO ]: Specification and implementation of procedure lturn given in one single declaration [2018-06-22 10:30:04,564 INFO ]: Found specification of procedure lturn [2018-06-22 10:30:04,565 INFO ]: Found implementation of procedure lturn [2018-06-22 10:30:04,565 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:30:04,565 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:30:04,565 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 10:30:05,702 INFO ]: Using library mode [2018-06-22 10:30:05,702 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:30:05 BoogieIcfgContainer [2018-06-22 10:30:05,702 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:30:05,704 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:30:05,708 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:30:05,713 INFO ]: TraceAbstraction initialized [2018-06-22 10:30:05,713 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:30:04" (1/3) ... [2018-06-22 10:30:05,714 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4088b0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:30:05, skipping insertion in model container [2018-06-22 10:30:05,714 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:30:04" (2/3) ... [2018-06-22 10:30:05,715 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4088b0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:30:05, skipping insertion in model container [2018-06-22 10:30:05,715 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:30:05" (3/3) ... [2018-06-22 10:30:05,717 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:30:05,727 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:30:05,739 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:30:05,779 INFO ]: Using default assertion order modulation [2018-06-22 10:30:05,780 INFO ]: Interprodecural is true [2018-06-22 10:30:05,780 INFO ]: Hoare is false [2018-06-22 10:30:05,780 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:30:05,780 INFO ]: Backedges is TWOTRACK [2018-06-22 10:30:05,780 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:30:05,780 INFO ]: Difference is false [2018-06-22 10:30:05,780 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:30:05,780 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:30:05,804 INFO ]: Start isEmpty. Operand 162 states. [2018-06-22 10:30:05,839 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 10:30:05,839 INFO ]: Found error trace [2018-06-22 10:30:05,840 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:05,840 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:05,845 INFO ]: Analyzing trace with hash 455494729, now seen corresponding path program 1 times [2018-06-22 10:30:05,846 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:05,847 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:05,886 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:05,886 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:05,886 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:05,997 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:06,215 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:30:06,218 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:06,218 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:30:06,223 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:30:06,239 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:30:06,240 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:06,243 INFO ]: Start difference. First operand 162 states. Second operand 6 states. [2018-06-22 10:30:09,247 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:09,248 INFO ]: Finished difference Result 204 states and 538 transitions. [2018-06-22 10:30:09,248 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:30:09,249 INFO ]: Start accepts. Automaton has 6 states. Word has length 17 [2018-06-22 10:30:09,249 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:09,276 INFO ]: With dead ends: 204 [2018-06-22 10:30:09,276 INFO ]: Without dead ends: 202 [2018-06-22 10:30:09,278 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 10:30:09,291 INFO ]: Start minimizeSevpa. Operand 202 states. [2018-06-22 10:30:09,477 INFO ]: Finished minimizeSevpa. Reduced states from 202 to 199. [2018-06-22 10:30:09,480 INFO ]: Start removeUnreachable. Operand 199 states. [2018-06-22 10:30:09,492 INFO ]: Finished removeUnreachable. Reduced from 199 states to 199 states and 532 transitions. [2018-06-22 10:30:09,493 INFO ]: Start accepts. Automaton has 199 states and 532 transitions. Word has length 17 [2018-06-22 10:30:09,494 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:09,494 INFO ]: Abstraction has 199 states and 532 transitions. [2018-06-22 10:30:09,494 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:30:09,495 INFO ]: Start isEmpty. Operand 199 states and 532 transitions. [2018-06-22 10:30:09,505 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:30:09,505 INFO ]: Found error trace [2018-06-22 10:30:09,506 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:09,507 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:09,507 INFO ]: Analyzing trace with hash -518109591, now seen corresponding path program 1 times [2018-06-22 10:30:09,508 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:09,508 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:09,509 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:09,509 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:09,509 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:09,543 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:09,646 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:30:09,647 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:09,647 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 10:30:09,648 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:30:09,649 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:30:09,649 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:09,649 INFO ]: Start difference. First operand 199 states and 532 transitions. Second operand 6 states. [2018-06-22 10:30:11,632 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:11,632 INFO ]: Finished difference Result 252 states and 853 transitions. [2018-06-22 10:30:11,632 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 10:30:11,632 INFO ]: Start accepts. Automaton has 6 states. Word has length 21 [2018-06-22 10:30:11,632 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:11,642 INFO ]: With dead ends: 252 [2018-06-22 10:30:11,642 INFO ]: Without dead ends: 252 [2018-06-22 10:30:11,644 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:30:11,644 INFO ]: Start minimizeSevpa. Operand 252 states. [2018-06-22 10:30:11,750 INFO ]: Finished minimizeSevpa. Reduced states from 252 to 245. [2018-06-22 10:30:11,750 INFO ]: Start removeUnreachable. Operand 245 states. [2018-06-22 10:30:11,758 INFO ]: Finished removeUnreachable. Reduced from 245 states to 245 states and 837 transitions. [2018-06-22 10:30:11,758 INFO ]: Start accepts. Automaton has 245 states and 837 transitions. Word has length 21 [2018-06-22 10:30:11,759 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:11,759 INFO ]: Abstraction has 245 states and 837 transitions. [2018-06-22 10:30:11,759 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:30:11,759 INFO ]: Start isEmpty. Operand 245 states and 837 transitions. [2018-06-22 10:30:11,765 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:30:11,765 INFO ]: Found error trace [2018-06-22 10:30:11,765 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:11,765 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:11,765 INFO ]: Analyzing trace with hash 557649357, now seen corresponding path program 1 times [2018-06-22 10:30:11,765 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:11,765 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:11,767 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:11,767 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:11,767 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:11,797 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:11,934 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:30:11,934 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:30:11,934 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 10:30:11,941 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:11,995 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:12,035 INFO ]: Computing forward predicates... [2018-06-22 10:30:12,299 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:30:12,331 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:30:12,331 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-06-22 10:30:12,331 INFO ]: Interpolant automaton has 14 states [2018-06-22 10:30:12,331 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 10:30:12,331 INFO ]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-06-22 10:30:12,331 INFO ]: Start difference. First operand 245 states and 837 transitions. Second operand 14 states. [2018-06-22 10:30:16,425 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:16,425 INFO ]: Finished difference Result 340 states and 1616 transitions. [2018-06-22 10:30:16,426 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 10:30:16,426 INFO ]: Start accepts. Automaton has 14 states. Word has length 25 [2018-06-22 10:30:16,426 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:16,440 INFO ]: With dead ends: 340 [2018-06-22 10:30:16,440 INFO ]: Without dead ends: 339 [2018-06-22 10:30:16,440 INFO ]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-06-22 10:30:16,441 INFO ]: Start minimizeSevpa. Operand 339 states. [2018-06-22 10:30:16,659 INFO ]: Finished minimizeSevpa. Reduced states from 339 to 326. [2018-06-22 10:30:16,689 INFO ]: Start removeUnreachable. Operand 326 states. [2018-06-22 10:30:16,696 INFO ]: Finished removeUnreachable. Reduced from 326 states to 326 states and 1448 transitions. [2018-06-22 10:30:16,696 INFO ]: Start accepts. Automaton has 326 states and 1448 transitions. Word has length 25 [2018-06-22 10:30:16,697 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:16,697 INFO ]: Abstraction has 326 states and 1448 transitions. [2018-06-22 10:30:16,697 INFO ]: Interpolant automaton has 14 states. [2018-06-22 10:30:16,697 INFO ]: Start isEmpty. Operand 326 states and 1448 transitions. [2018-06-22 10:30:16,702 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:30:16,702 INFO ]: Found error trace [2018-06-22 10:30:16,702 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:16,702 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:16,702 INFO ]: Analyzing trace with hash 1704826299, now seen corresponding path program 1 times [2018-06-22 10:30:16,702 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:16,702 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:16,703 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:16,703 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:16,703 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:16,731 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:17,264 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:30:17,264 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:17,264 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 10:30:17,265 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:30:17,265 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:30:17,265 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:30:17,265 INFO ]: Start difference. First operand 326 states and 1448 transitions. Second operand 7 states. [2018-06-22 10:30:18,526 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:18,527 INFO ]: Finished difference Result 442 states and 2340 transitions. [2018-06-22 10:30:18,530 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 10:30:18,530 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 10:30:18,530 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:18,548 INFO ]: With dead ends: 442 [2018-06-22 10:30:18,548 INFO ]: Without dead ends: 442 [2018-06-22 10:30:18,548 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:30:18,548 INFO ]: Start minimizeSevpa. Operand 442 states. [2018-06-22 10:30:18,831 INFO ]: Finished minimizeSevpa. Reduced states from 442 to 430. [2018-06-22 10:30:18,831 INFO ]: Start removeUnreachable. Operand 430 states. [2018-06-22 10:30:18,841 INFO ]: Finished removeUnreachable. Reduced from 430 states to 430 states and 2268 transitions. [2018-06-22 10:30:18,841 INFO ]: Start accepts. Automaton has 430 states and 2268 transitions. Word has length 21 [2018-06-22 10:30:18,841 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:18,841 INFO ]: Abstraction has 430 states and 2268 transitions. [2018-06-22 10:30:18,841 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:30:18,841 INFO ]: Start isEmpty. Operand 430 states and 2268 transitions. [2018-06-22 10:30:18,850 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:30:18,850 INFO ]: Found error trace [2018-06-22 10:30:18,850 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:18,850 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:18,851 INFO ]: Analyzing trace with hash -471350006, now seen corresponding path program 1 times [2018-06-22 10:30:18,851 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:18,851 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:18,851 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:18,851 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:18,851 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:18,878 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:19,152 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:30:19,152 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:30:19,152 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 10:30:19,160 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:19,182 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:19,185 INFO ]: Computing forward predicates... [2018-06-22 10:30:19,365 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 10:30:19,394 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:30:19,394 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-06-22 10:30:19,394 INFO ]: Interpolant automaton has 14 states [2018-06-22 10:30:19,394 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 10:30:19,394 INFO ]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-06-22 10:30:19,395 INFO ]: Start difference. First operand 430 states and 2268 transitions. Second operand 14 states. [2018-06-22 10:30:24,105 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:24,105 INFO ]: Finished difference Result 960 states and 8111 transitions. [2018-06-22 10:30:24,106 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 10:30:24,106 INFO ]: Start accepts. Automaton has 14 states. Word has length 25 [2018-06-22 10:30:24,106 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:24,159 INFO ]: With dead ends: 960 [2018-06-22 10:30:24,159 INFO ]: Without dead ends: 956 [2018-06-22 10:30:24,160 INFO ]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2018-06-22 10:30:24,161 INFO ]: Start minimizeSevpa. Operand 956 states. [2018-06-22 10:30:25,001 INFO ]: Finished minimizeSevpa. Reduced states from 956 to 912. [2018-06-22 10:30:25,001 INFO ]: Start removeUnreachable. Operand 912 states. [2018-06-22 10:30:25,035 INFO ]: Finished removeUnreachable. Reduced from 912 states to 912 states and 7747 transitions. [2018-06-22 10:30:25,035 INFO ]: Start accepts. Automaton has 912 states and 7747 transitions. Word has length 25 [2018-06-22 10:30:25,035 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:25,035 INFO ]: Abstraction has 912 states and 7747 transitions. [2018-06-22 10:30:25,035 INFO ]: Interpolant automaton has 14 states. [2018-06-22 10:30:25,035 INFO ]: Start isEmpty. Operand 912 states and 7747 transitions. [2018-06-22 10:30:25,048 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 10:30:25,048 INFO ]: Found error trace [2018-06-22 10:30:25,048 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:25,048 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:25,049 INFO ]: Analyzing trace with hash -1052265410, now seen corresponding path program 1 times [2018-06-22 10:30:25,049 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:25,049 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:25,050 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:25,050 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:25,050 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:25,068 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:30:25,578 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:30:25,578 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:30:25,578 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 10:30:25,578 INFO ]: Interpolant automaton has 7 states [2018-06-22 10:30:25,579 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 10:30:25,579 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:30:25,579 INFO ]: Start difference. First operand 912 states and 7747 transitions. Second operand 7 states. [2018-06-22 10:30:26,984 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:30:26,984 INFO ]: Finished difference Result 1254 states and 12572 transitions. [2018-06-22 10:30:26,984 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 10:30:26,984 INFO ]: Start accepts. Automaton has 7 states. Word has length 21 [2018-06-22 10:30:26,984 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:30:27,092 INFO ]: With dead ends: 1254 [2018-06-22 10:30:27,092 INFO ]: Without dead ends: 1254 [2018-06-22 10:30:27,092 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:30:27,093 INFO ]: Start minimizeSevpa. Operand 1254 states. [2018-06-22 10:30:28,173 INFO ]: Finished minimizeSevpa. Reduced states from 1254 to 1064. [2018-06-22 10:30:28,174 INFO ]: Start removeUnreachable. Operand 1064 states. [2018-06-22 10:30:28,225 INFO ]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 10666 transitions. [2018-06-22 10:30:28,225 INFO ]: Start accepts. Automaton has 1064 states and 10666 transitions. Word has length 21 [2018-06-22 10:30:28,225 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:30:28,225 INFO ]: Abstraction has 1064 states and 10666 transitions. [2018-06-22 10:30:28,225 INFO ]: Interpolant automaton has 7 states. [2018-06-22 10:30:28,225 INFO ]: Start isEmpty. Operand 1064 states and 10666 transitions. [2018-06-22 10:30:28,240 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 10:30:28,240 INFO ]: Found error trace [2018-06-22 10:30:28,240 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:30:28,241 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:30:28,241 INFO ]: Analyzing trace with hash -1066797650, now seen corresponding path program 1 times [2018-06-22 10:30:28,241 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:30:28,241 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:30:28,242 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:28,243 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:30:28,243 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:30:28,257 INFO ]: Conjunction of SSA is sat [2018-06-22 10:30:28,262 INFO ]: Counterexample might be feasible [2018-06-22 10:30:28,286 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:30:28 BoogieIcfgContainer [2018-06-22 10:30:28,286 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:30:28,287 INFO ]: Toolchain (without parser) took 23888.84 ms. Allocated memory was 308.8 MB in the beginning and 717.2 MB in the end (delta: 408.4 MB). Free memory was 251.2 MB in the beginning and 298.2 MB in the end (delta: -47.0 MB). Peak memory consumption was 361.4 MB. Max. memory is 3.6 GB. [2018-06-22 10:30:28,288 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 308.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:30:28,289 INFO ]: ChcToBoogie took 67.54 ms. Allocated memory is still 308.8 MB. Free memory was 251.2 MB in the beginning and 249.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:30:28,289 INFO ]: Boogie Preprocessor took 68.50 ms. Allocated memory is still 308.8 MB. Free memory was 249.2 MB in the beginning and 247.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:30:28,290 INFO ]: RCFGBuilder took 1154.42 ms. Allocated memory is still 308.8 MB. Free memory was 247.2 MB in the beginning and 203.3 MB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 3.6 GB. [2018-06-22 10:30:28,295 INFO ]: TraceAbstraction took 22581.73 ms. Allocated memory was 308.8 MB in the beginning and 717.2 MB in the end (delta: 408.4 MB). Free memory was 203.3 MB in the beginning and 298.2 MB in the end (delta: -94.9 MB). Peak memory consumption was 313.5 MB. Max. memory is 3.6 GB. [2018-06-22 10:30:28,297 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 308.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 67.54 ms. Allocated memory is still 308.8 MB. Free memory was 251.2 MB in the beginning and 249.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 68.50 ms. Allocated memory is still 308.8 MB. Free memory was 249.2 MB in the beginning and 247.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1154.42 ms. Allocated memory is still 308.8 MB. Free memory was 247.2 MB in the beginning and 203.3 MB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 3.6 GB. * TraceAbstraction took 22581.73 ms. Allocated memory was 308.8 MB in the beginning and 717.2 MB in the end (delta: 408.4 MB). Free memory was 203.3 MB in the beginning and 298.2 MB in the end (delta: -94.9 MB). Peak memory consumption was 313.5 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call False(); [L0] assume true; [L0] CALL call combined_lturn(hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_12_Int); [L0] assume true; [L0] CALL call lturn(hhv_combined_lturn_0_Int, hhv_combined_lturn_1_Int, hhv_combined_lturn_2_Int, hhv_combined_lturn_3_Int, hhv_combined_lturn_4_Int, hhv_combined_lturn_5_Int, hhv_combined_lturn_6_Int, hhv_combined_lturn_7_Int, hhv_combined_lturn_8_Int, hhv_combined_lturn_9_Int, hhv_combined_lturn_10_Int, hhv_combined_lturn_11_Int); [L0] assume ((((((((((((((((0 + -1 * hhv_lturn_0_Int + 1 * hhv_lturn_1_Int + -1 >= 0 && 0 + 1 * hhv_lturn_7_Int + -1 * hhv_lturn_0_Int + -2 >= 0) && 0 + -1 * hhv_lturn_4_Int + 1 * hhv_lturn_5_Int + 0 >= 0) && 0 + 1 * hhv_lturn_7_Int + -1 * hhv_lturn_2_Int + 0 >= 0) && 0 + 1 * hhv_lturn_7_Int + -1 * hhv_lturn_1_Int + -1 >= 0) && 0 + -1 * hhv_lturn_6_Int + 1 * hhv_lturn_0_Int + -1 >= 0) && 0 + 1 * hhv_lturn_3_Int + -1 * hhv_lturn_8_Int + 0 >= 0) && 0 + -1 * hhv_lturn_3_Int + 1 * hhv_lturn_8_Int + 0 >= 0) && 0 + -1 * hhv_lturn_6_Int + 1 * hhv_lturn_9_Int + -2 >= 0) && 0 + -1 * hhv_lturn_10_Int + 1 * hhv_lturn_9_Int + -1 >= 0) && 0 + -1 * hhv_lturn_1_Int + 1 * hhv_lturn_2_Int + -1 >= 0) && 0 + -1 * hhv_lturn_6_Int + 1 * hhv_lturn_2_Int + -3 >= 0) && 0 + 1 * hhv_lturn_7_Int + -1 * hhv_lturn_9_Int + 0 >= 0) && 0 + -1 * hhv_lturn_6_Int + 1 * hhv_lturn_10_Int + -1 >= 0) && 0 + -1 * hhv_lturn_6_Int + 1 * hhv_lturn_1_Int + -2 >= 0) && 0 + -1 * hhv_lturn_6_Int + 1 * hhv_lturn_7_Int + -3 >= 0) && 0 + 1 * hhv_lturn_7_Int + -1 * hhv_lturn_10_Int + -1 >= 0) && 0 + -1 * hhv_lturn_0_Int + 1 * hhv_lturn_2_Int + -2 >= 0; [L0] RET call lturn(hhv_combined_lturn_0_Int, hhv_combined_lturn_1_Int, hhv_combined_lturn_2_Int, hhv_combined_lturn_3_Int, hhv_combined_lturn_4_Int, hhv_combined_lturn_5_Int, hhv_combined_lturn_6_Int, hhv_combined_lturn_7_Int, hhv_combined_lturn_8_Int, hhv_combined_lturn_9_Int, hhv_combined_lturn_10_Int, hhv_combined_lturn_11_Int); [L0] RET call combined_lturn(hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_12_Int); [L0] CALL call step_lturn(hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_11_Int, hbv_False_10_Int, hbv_False_12_Int); [L0] assume true; [L0] CALL call step_lturn(hhv_step_lturn_0_Int, hhv_step_lturn_1_Int, hhv_step_lturn_2_Int, hhv_step_lturn_3_Int, hhv_step_lturn_4_Int, hhv_step_lturn_5_Int, hhv_step_lturn_6_Int, hhv_step_lturn_7_Int, hhv_step_lturn_9_Int, hhv_step_lturn_10_Int, hhv_step_lturn_8_Int, hhv_step_lturn_11_Int); [L0] assume true; [L0] CALL call step_lturn__bar(hhv_step_lturn_0_Int, hhv_step_lturn_1_Int, hhv_step_lturn_2_Int, hhv_step_lturn_3_Int, hhv_step_lturn_4_Int, hhv_step_lturn_5_Int, hhv_step_lturn_6_Int, hhv_step_lturn_7_Int, hhv_step_lturn_8_Int, hhv_step_lturn_10_Int, hhv_step_lturn_9_Int, hhv_step_lturn_11_Int); [L0] assume ((((((((((((((((((((((((0 + -1 * hhv_step_lturn__bar_6_Int + 1 * hhv_step_lturn__bar_2_Int + -2 >= 0 && 0 + 1 * hhv_step_lturn__bar_1_Int + -1 * hhv_step_lturn__bar_9_Int + -1 >= 0) && 0 + -1 * hhv_step_lturn__bar_0_Int + 1 * hhv_step_lturn__bar_9_Int + 0 >= 0) && 0 + -1 * hhv_step_lturn__bar_1_Int + 1 * hhv_step_lturn__bar_2_Int + -1 >= 0) && 0 + 1 * hhv_step_lturn__bar_10_Int + -1 * hhv_step_lturn__bar_9_Int + -2 >= 0) && 0 + -1 * hhv_step_lturn__bar_0_Int + 1 * hhv_step_lturn__bar_10_Int + -2 >= 0) && 0 + -1 * hhv_step_lturn__bar_1_Int + 1 * hhv_step_lturn__bar_10_Int + -1 >= 0) && 0 + 1 * hhv_step_lturn__bar_7_Int + -1 * hhv_step_lturn__bar_2_Int + 0 >= 0) && 0 + 1 * hhv_step_lturn__bar_7_Int + -1 * hhv_step_lturn__bar_9_Int + -2 >= 0) && 0 + 1 * hhv_step_lturn__bar_7_Int + -1 * hhv_step_lturn__bar_10_Int + 0 >= 0) && 0 + -1 * hhv_step_lturn__bar_3_Int + 1 * hhv_step_lturn__bar_8_Int + 0 >= 0) && 0 + -1 * hhv_step_lturn__bar_0_Int + 1 * hhv_step_lturn__bar_2_Int + -2 >= 0) && 0 + -1 * hhv_step_lturn__bar_4_Int + 1 * hhv_step_lturn__bar_5_Int + 0 >= 0) && 0 + -1 * hhv_step_lturn__bar_0_Int + 1 * hhv_step_lturn__bar_1_Int + -1 >= 0) && 0 + -1 * hhv_step_lturn__bar_6_Int + 1 * hhv_step_lturn__bar_1_Int + -1 >= 0) && 0 + 1 * hhv_step_lturn__bar_2_Int + -1 * hhv_step_lturn__bar_9_Int + -2 >= 0) && 0 + 1 * hhv_step_lturn__bar_2_Int + -1 * hhv_step_lturn__bar_10_Int + 0 >= 0) && 0 + 1 * hhv_step_lturn__bar_7_Int + -1 * hhv_step_lturn__bar_0_Int + -2 >= 0) && 0 + 1 * hhv_step_lturn__bar_7_Int + -1 * hhv_step_lturn__bar_1_Int + -1 >= 0) && 0 + 1 * hhv_step_lturn__bar_3_Int + -1 * hhv_step_lturn__bar_8_Int + 0 >= 0) && 0 + 1 * hhv_step_lturn__bar_0_Int + -1 * hhv_step_lturn__bar_9_Int + 0 >= 0) && 0 + -1 * hhv_step_lturn__bar_6_Int + 1 * hhv_step_lturn__bar_0_Int + 0 >= 0) && 0 + -1 * hhv_step_lturn__bar_6_Int + 1 * hhv_step_lturn__bar_10_Int + -2 >= 0) && 0 + -1 * hhv_step_lturn__bar_6_Int + 1 * hhv_step_lturn__bar_7_Int + -2 >= 0) && 0 + -1 * hhv_step_lturn__bar_2_Int + 1 * hhv_step_lturn__bar_10_Int + 0 >= 0) && 0 + -1 * hhv_step_lturn__bar_6_Int + 1 * hhv_step_lturn__bar_9_Int + 0 >= 0; [L0] RET call step_lturn__bar(hhv_step_lturn_0_Int, hhv_step_lturn_1_Int, hhv_step_lturn_2_Int, hhv_step_lturn_3_Int, hhv_step_lturn_4_Int, hhv_step_lturn_5_Int, hhv_step_lturn_6_Int, hhv_step_lturn_7_Int, hhv_step_lturn_8_Int, hhv_step_lturn_10_Int, hhv_step_lturn_9_Int, hhv_step_lturn_11_Int); [L0] RET call step_lturn(hhv_step_lturn_0_Int, hhv_step_lturn_1_Int, hhv_step_lturn_2_Int, hhv_step_lturn_3_Int, hhv_step_lturn_4_Int, hhv_step_lturn_5_Int, hhv_step_lturn_6_Int, hhv_step_lturn_7_Int, hhv_step_lturn_9_Int, hhv_step_lturn_10_Int, hhv_step_lturn_8_Int, hhv_step_lturn_11_Int); [L0] RET call step_lturn(hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_11_Int, hbv_False_10_Int, hbv_False_12_Int); [L0] RET call False(); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 162 locations, 1 error locations. UNSAFE Result, 22.5s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 16.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2248 SDtfs, 131 SDslu, 13092 SDs, 0 SdLazy, 12162 SolverSat, 643 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1064occurred 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: 2.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 269 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 205 NumberOfCodeBlocks, 205 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 11320 SizeOfPredicates, 6 NumberOfNonLiveVariables, 403 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 7/15 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.6.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-30-28-315.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.6.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-30-28-315.csv Received shutdown request...