java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/llreve/barthe2_safe.c-1.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 08:53:12,292 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 08:53:12,294 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 08:53:12,307 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 08:53:12,307 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 08:53:12,308 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 08:53:12,309 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 08:53:12,311 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 08:53:12,312 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 08:53:12,313 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 08:53:12,315 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 08:53:12,316 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 08:53:12,317 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 08:53:12,318 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 08:53:12,318 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 08:53:12,320 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 08:53:12,322 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 08:53:12,323 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 08:53:12,325 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 08:53:12,326 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 08:53:12,327 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 08:53:12,329 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 08:53:12,329 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 08:53:12,330 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 08:53:12,330 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 08:53:12,331 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 08:53:12,332 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 08:53:12,333 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 08:53:12,334 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 08:53:12,334 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 08:53:12,335 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 08:53:12,335 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 08:53:12,336 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 08:53:12,337 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 08:53:12,337 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 08:53:12,337 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 08:53:12,353 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 08:53:12,354 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 08:53:12,354 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 08:53:12,354 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 08:53:12,355 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 08:53:12,355 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 08:53:12,356 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 08:53:12,356 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 08:53:12,356 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 08:53:12,356 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 08:53:12,357 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 08:53:12,360 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 08:53:12,361 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 08:53:12,361 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 08:53:12,361 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 08:53:12,361 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 08:53:12,361 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 08:53:12,362 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 08:53:12,362 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 08:53:12,362 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 08:53:12,362 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 08:53:12,363 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 08:53:12,365 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 08:53:12,420 INFO ]: Repository-Root is: /tmp [2018-06-25 08:53:12,437 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 08:53:12,441 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 08:53:12,443 INFO ]: Initializing SmtParser... [2018-06-25 08:53:12,443 INFO ]: SmtParser initialized [2018-06-25 08:53:12,444 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/llreve/barthe2_safe.c-1.smt2 [2018-06-25 08:53:12,445 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 [2018-06-25 08:53:12,532 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/llreve/barthe2_safe.c-1.smt2 unknown [2018-06-25 08:53:12,706 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/llreve/barthe2_safe.c-1.smt2 [2018-06-25 08:53:12,713 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 08:53:12,723 INFO ]: Walking toolchain with 4 elements. [2018-06-25 08:53:12,723 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 08:53:12,723 INFO ]: Initializing ChcToBoogie... [2018-06-25 08:53:12,724 INFO ]: ChcToBoogie initialized [2018-06-25 08:53:12,729 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 08:53:12" (1/1) ... [2018-06-25 08:53:12,776 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:53:12 Unit [2018-06-25 08:53:12,776 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 08:53:12,776 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 08:53:12,776 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 08:53:12,776 INFO ]: Boogie Preprocessor initialized [2018-06-25 08:53:12,796 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:53:12" (1/1) ... [2018-06-25 08:53:12,796 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:53:12" (1/1) ... [2018-06-25 08:53:12,803 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:53:12" (1/1) ... [2018-06-25 08:53:12,803 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:53:12" (1/1) ... [2018-06-25 08:53:12,806 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:53:12" (1/1) ... [2018-06-25 08:53:12,807 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:53:12" (1/1) ... [2018-06-25 08:53:12,808 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:53:12" (1/1) ... [2018-06-25 08:53:12,810 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 08:53:12,811 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 08:53:12,811 INFO ]: Initializing RCFGBuilder... [2018-06-25 08:53:12,811 INFO ]: RCFGBuilder initialized [2018-06-25 08:53:12,812 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:53:12" (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) [2018-06-25 08:53:12,830 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 08:53:12,830 INFO ]: Found specification of procedure gotoProc [2018-06-25 08:53:12,830 INFO ]: Found implementation of procedure gotoProc [2018-06-25 08:53:12,830 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 08:53:12,830 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 08:53:12,830 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 [2018-06-25 08:53:13,059 INFO ]: Using library mode [2018-06-25 08:53:13,059 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 08:53:13 BoogieIcfgContainer [2018-06-25 08:53:13,059 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 08:53:13,061 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 08:53:13,061 INFO ]: Initializing TraceAbstraction... [2018-06-25 08:53:13,071 INFO ]: TraceAbstraction initialized [2018-06-25 08:53:13,071 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 08:53:12" (1/3) ... [2018-06-25 08:53:13,072 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c4e313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 08:53:13, skipping insertion in model container [2018-06-25 08:53:13,072 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:53:12" (2/3) ... [2018-06-25 08:53:13,072 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c4e313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 08:53:13, skipping insertion in model container [2018-06-25 08:53:13,072 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 08:53:13" (3/3) ... [2018-06-25 08:53:13,074 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 08:53:13,083 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 08:53:13,091 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 08:53:13,149 INFO ]: Using default assertion order modulation [2018-06-25 08:53:13,150 INFO ]: Interprodecural is true [2018-06-25 08:53:13,150 INFO ]: Hoare is false [2018-06-25 08:53:13,150 INFO ]: Compute interpolants for FPandBP [2018-06-25 08:53:13,150 INFO ]: Backedges is TWOTRACK [2018-06-25 08:53:13,150 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 08:53:13,150 INFO ]: Difference is false [2018-06-25 08:53:13,150 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 08:53:13,150 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 08:53:13,161 INFO ]: Start isEmpty. Operand 13 states. [2018-06-25 08:53:13,172 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 08:53:13,172 INFO ]: Found error trace [2018-06-25 08:53:13,173 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:53:13,173 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:53:13,179 INFO ]: Analyzing trace with hash 764877710, now seen corresponding path program 1 times [2018-06-25 08:53:13,181 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:53:13,181 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:53:13,214 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:53:13,214 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:53:13,214 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:53:13,254 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:53:13,397 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:53:13,399 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:53:13,399 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-25 08:53:13,401 INFO ]: Interpolant automaton has 5 states [2018-06-25 08:53:13,411 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-25 08:53:13,411 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-25 08:53:13,414 INFO ]: Start difference. First operand 13 states. Second operand 5 states. [2018-06-25 08:53:13,552 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:53:13,552 INFO ]: Finished difference Result 17 states and 20 transitions. [2018-06-25 08:53:13,553 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 08:53:13,554 INFO ]: Start accepts. Automaton has 5 states. Word has length 10 [2018-06-25 08:53:13,554 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:53:13,561 INFO ]: With dead ends: 17 [2018-06-25 08:53:13,561 INFO ]: Without dead ends: 17 [2018-06-25 08:53:13,563 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-06-25 08:53:13,576 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-25 08:53:13,590 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 13. [2018-06-25 08:53:13,592 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-25 08:53:13,592 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2018-06-25 08:53:13,593 INFO ]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2018-06-25 08:53:13,593 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:53:13,593 INFO ]: Abstraction has 13 states and 15 transitions. [2018-06-25 08:53:13,593 INFO ]: Interpolant automaton has 5 states. [2018-06-25 08:53:13,594 INFO ]: Start isEmpty. Operand 13 states and 15 transitions. [2018-06-25 08:53:13,597 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-25 08:53:13,597 INFO ]: Found error trace [2018-06-25 08:53:13,597 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:53:13,597 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:53:13,597 INFO ]: Analyzing trace with hash -2005065960, now seen corresponding path program 1 times [2018-06-25 08:53:13,597 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:53:13,597 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:53:13,598 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:53:13,598 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:53:13,598 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:53:13,623 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:53:14,076 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:53:14,076 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 08:53:14,076 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) [2018-06-25 08:53:14,093 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 08:53:14,142 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:53:14,151 INFO ]: Computing forward predicates... [2018-06-25 08:53:14,304 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:53:14,333 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 08:53:14,333 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-06-25 08:53:14,334 INFO ]: Interpolant automaton has 7 states [2018-06-25 08:53:14,334 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-25 08:53:14,334 INFO ]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-06-25 08:53:14,334 INFO ]: Start difference. First operand 13 states and 15 transitions. Second operand 7 states. [2018-06-25 08:53:14,699 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:53:14,699 INFO ]: Finished difference Result 18 states and 21 transitions. [2018-06-25 08:53:14,700 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-25 08:53:14,701 INFO ]: Start accepts. Automaton has 7 states. Word has length 11 [2018-06-25 08:53:14,701 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:53:14,701 INFO ]: With dead ends: 18 [2018-06-25 08:53:14,701 INFO ]: Without dead ends: 18 [2018-06-25 08:53:14,702 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-06-25 08:53:14,702 INFO ]: Start minimizeSevpa. Operand 18 states. [2018-06-25 08:53:14,707 INFO ]: Finished minimizeSevpa. Reduced states from 18 to 14. [2018-06-25 08:53:14,707 INFO ]: Start removeUnreachable. Operand 14 states. [2018-06-25 08:53:14,707 INFO ]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-06-25 08:53:14,708 INFO ]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2018-06-25 08:53:14,708 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:53:14,708 INFO ]: Abstraction has 14 states and 16 transitions. [2018-06-25 08:53:14,708 INFO ]: Interpolant automaton has 7 states. [2018-06-25 08:53:14,708 INFO ]: Start isEmpty. Operand 14 states and 16 transitions. [2018-06-25 08:53:14,708 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-25 08:53:14,708 INFO ]: Found error trace [2018-06-25 08:53:14,708 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:53:14,708 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:53:14,708 INFO ]: Analyzing trace with hash -459091806, now seen corresponding path program 1 times [2018-06-25 08:53:14,708 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:53:14,708 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:53:14,709 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:53:14,709 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:53:14,709 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:53:14,736 INFO ]: Conjunction of SSA is sat [2018-06-25 08:53:14,745 INFO ]: Counterexample might be feasible [2018-06-25 08:53:14,767 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 08:53:14 BoogieIcfgContainer [2018-06-25 08:53:14,767 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 08:53:14,768 INFO ]: Toolchain (without parser) took 2054.19 ms. Allocated memory is still 308.8 MB. Free memory was 265.2 MB in the beginning and 210.7 MB in the end (delta: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 3.6 GB. [2018-06-25 08:53:14,770 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 08:53:14,770 INFO ]: ChcToBoogie took 52.67 ms. Allocated memory is still 308.8 MB. Free memory was 265.2 MB in the beginning and 262.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 08:53:14,770 INFO ]: Boogie Preprocessor took 34.26 ms. Allocated memory is still 308.8 MB. Free memory was 262.2 MB in the beginning and 261.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-25 08:53:14,773 INFO ]: RCFGBuilder took 248.36 ms. Allocated memory is still 308.8 MB. Free memory was 261.2 MB in the beginning and 253.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-25 08:53:14,773 INFO ]: TraceAbstraction took 1706.74 ms. Allocated memory is still 308.8 MB. Free memory was 253.2 MB in the beginning and 210.7 MB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 3.6 GB. [2018-06-25 08:53:14,780 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 52.67 ms. Allocated memory is still 308.8 MB. Free memory was 265.2 MB in the beginning and 262.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 34.26 ms. Allocated memory is still 308.8 MB. Free memory was 262.2 MB in the beginning and 261.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 248.36 ms. Allocated memory is still 308.8 MB. Free memory was 261.2 MB in the beginning and 253.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1706.74 ms. Allocated memory is still 308.8 MB. Free memory was 253.2 MB in the beginning and 210.7 MB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 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 gotoProc(0, 0, 0, 0, 0, 0); [L0] gotoSwitch := gotoSwitch_in; [L0] assume !(hbv_False_1_Int == hbv_False_2_Int); [L0] hhv_inv_main25_0_Int, hhv_inv_main25_1_Int, hhv_inv_main25_2_Int := hbv_False_3_Int, hbv_False_1_Int, hbv_False_2_Int; [L0] havoc hbv_False_1_Int, hbv_False_3_Int, hbv_False_2_Int; [L0] assume !(!(hbv_inv_main25_3_Int == 0) && 0 <= hbv_inv_main25_1_Int + -1 * hbv_inv_main25_2_Int); [L0] hhv_inv_main19_0_Int, hhv_inv_main19_1_Int, hhv_inv_main19_2_Int, hhv_inv_main19_3_Int, hhv_inv_main19_4_Int := hhv_inv_main25_0_Int, hhv_inv_main25_1_Int, hbv_inv_main25_1_Int, hbv_inv_main25_2_Int, hhv_inv_main25_2_Int; [L0] havoc hbv_inv_main25_2_Int, hbv_inv_main25_3_Int, hbv_inv_main25_1_Int; [L0] assume ((!(hbv_inv_main19_1_Int == 0) && hhv_inv_main19_4_Int == hbv_inv_main19_2_Int + hbv_inv_main19_3_Int) && 0 <= hhv_inv_main19_2_Int + -1 * hbv_inv_main19_3_Int) && hhv_inv_main19_3_Int == hbv_inv_main19_3_Int + 1; [L0] hhv_inv_main19_0_Int, hhv_inv_main19_1_Int, hhv_inv_main19_2_Int, hhv_inv_main19_3_Int, hhv_inv_main19_4_Int := hhv_inv_main19_0_Int, hhv_inv_main19_1_Int, hhv_inv_main19_2_Int, hbv_inv_main19_3_Int, hbv_inv_main19_2_Int; [L0] havoc hbv_inv_main19_2_Int, hbv_inv_main19_1_Int, hbv_inv_main19_3_Int; [L0] assume ((hhv_inv_main19_2_Int == hhv_inv_main19_0_Int && hhv_inv_main19_3_Int == 1) && hhv_inv_main19_4_Int == 0) && !(!(hbv_inv_main19_3_Int == 0) && 0 <= hbv_inv_main19_1_Int + -1 * hbv_inv_main19_2_Int); [L0] hhv_inv_main8_0_Int, hhv_inv_main8_1_Int, hhv_inv_main8_2_Int, hhv_inv_main8_3_Int := hhv_inv_main19_0_Int, hbv_inv_main19_1_Int, hbv_inv_main19_2_Int, hhv_inv_main19_1_Int; [L0] havoc hbv_inv_main19_2_Int, hbv_inv_main19_1_Int, hbv_inv_main19_3_Int; [L0] assume (hhv_inv_main8_1_Int == hhv_inv_main8_0_Int && hhv_inv_main8_2_Int == 0) && hhv_inv_main8_3_Int == 0; [L0] hhv_inv_main3_0_Int := hhv_inv_main8_0_Int; [L0] assume true; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 13 locations, 1 error locations. UNSAFE Result, 1.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 30 SDslu, 55 SDs, 0 SdLazy, 32 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=2, 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 712 SizeOfPredicates, 6 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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/barthe2_safe.c-1.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_08-53-14-794.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/barthe2_safe.c-1.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_08-53-14-794.csv Received shutdown request...