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/reve/022c-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 09:16:46,608 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 09:16:46,610 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 09:16:46,623 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 09:16:46,623 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 09:16:46,624 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 09:16:46,626 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 09:16:46,630 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 09:16:46,632 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 09:16:46,633 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 09:16:46,634 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 09:16:46,634 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 09:16:46,635 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 09:16:46,636 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 09:16:46,637 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 09:16:46,638 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 09:16:46,639 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 09:16:46,641 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 09:16:46,643 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 09:16:46,644 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 09:16:46,645 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 09:16:46,647 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 09:16:46,647 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 09:16:46,647 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 09:16:46,648 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 09:16:46,649 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 09:16:46,650 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 09:16:46,651 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 09:16:46,652 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 09:16:46,652 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 09:16:46,653 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 09:16:46,653 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 09:16:46,653 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 09:16:46,654 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 09:16:46,655 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 09:16:46,655 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 09:16:46,669 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 09:16:46,670 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 09:16:46,670 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 09:16:46,670 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 09:16:46,671 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 09:16:46,671 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 09:16:46,671 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 09:16:46,672 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 09:16:46,672 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 09:16:46,672 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 09:16:46,672 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 09:16:46,672 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 09:16:46,673 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 09:16:46,673 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 09:16:46,673 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 09:16:46,673 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 09:16:46,673 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 09:16:46,673 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 09:16:46,674 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 09:16:46,674 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 09:16:46,674 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 09:16:46,678 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 09:16:46,678 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 09:16:46,716 INFO ]: Repository-Root is: /tmp [2018-06-25 09:16:46,727 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 09:16:46,731 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 09:16:46,733 INFO ]: Initializing SmtParser... [2018-06-25 09:16:46,733 INFO ]: SmtParser initialized [2018-06-25 09:16:46,733 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/022c-horn.smt2 [2018-06-25 09:16:46,735 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 09:16:46,830 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/022c-horn.smt2 unknown [2018-06-25 09:16:47,199 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/022c-horn.smt2 [2018-06-25 09:16:47,204 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 09:16:47,209 INFO ]: Walking toolchain with 4 elements. [2018-06-25 09:16:47,209 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 09:16:47,209 INFO ]: Initializing ChcToBoogie... [2018-06-25 09:16:47,209 INFO ]: ChcToBoogie initialized [2018-06-25 09:16:47,216 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:16:47" (1/1) ... [2018-06-25 09:16:47,286 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:16:47 Unit [2018-06-25 09:16:47,286 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 09:16:47,287 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 09:16:47,287 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 09:16:47,287 INFO ]: Boogie Preprocessor initialized [2018-06-25 09:16:47,309 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:16:47" (1/1) ... [2018-06-25 09:16:47,309 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:16:47" (1/1) ... [2018-06-25 09:16:47,317 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:16:47" (1/1) ... [2018-06-25 09:16:47,317 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:16:47" (1/1) ... [2018-06-25 09:16:47,323 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:16:47" (1/1) ... [2018-06-25 09:16:47,326 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:16:47" (1/1) ... [2018-06-25 09:16:47,327 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:16:47" (1/1) ... [2018-06-25 09:16:47,329 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 09:16:47,330 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 09:16:47,330 INFO ]: Initializing RCFGBuilder... [2018-06-25 09:16:47,330 INFO ]: RCFGBuilder initialized [2018-06-25 09:16:47,331 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:16:47" (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 [2018-06-25 09:16:47,346 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 09:16:47,346 INFO ]: Found specification of procedure gotoProc [2018-06-25 09:16:47,346 INFO ]: Found implementation of procedure gotoProc [2018-06-25 09:16:47,346 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 09:16:47,346 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 09:16:47,346 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 09:16:47,860 INFO ]: Using library mode [2018-06-25 09:16:47,860 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:16:47 BoogieIcfgContainer [2018-06-25 09:16:47,860 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 09:16:47,861 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 09:16:47,861 INFO ]: Initializing TraceAbstraction... [2018-06-25 09:16:47,864 INFO ]: TraceAbstraction initialized [2018-06-25 09:16:47,864 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:16:47" (1/3) ... [2018-06-25 09:16:47,865 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cf27e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 09:16:47, skipping insertion in model container [2018-06-25 09:16:47,865 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:16:47" (2/3) ... [2018-06-25 09:16:47,866 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cf27e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 09:16:47, skipping insertion in model container [2018-06-25 09:16:47,866 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:16:47" (3/3) ... [2018-06-25 09:16:47,867 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 09:16:47,877 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 09:16:47,884 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 09:16:47,924 INFO ]: Using default assertion order modulation [2018-06-25 09:16:47,924 INFO ]: Interprodecural is true [2018-06-25 09:16:47,924 INFO ]: Hoare is false [2018-06-25 09:16:47,924 INFO ]: Compute interpolants for FPandBP [2018-06-25 09:16:47,924 INFO ]: Backedges is TWOTRACK [2018-06-25 09:16:47,924 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 09:16:47,925 INFO ]: Difference is false [2018-06-25 09:16:47,925 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 09:16:47,925 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 09:16:47,938 INFO ]: Start isEmpty. Operand 31 states. [2018-06-25 09:16:47,950 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 09:16:47,950 INFO ]: Found error trace [2018-06-25 09:16:47,951 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:16:47,951 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:16:47,955 INFO ]: Analyzing trace with hash 545886232, now seen corresponding path program 1 times [2018-06-25 09:16:47,956 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:16:47,957 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:16:47,988 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:16:47,988 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:16:47,988 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:16:48,024 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:16:48,096 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:16:48,099 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:16:48,099 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 09:16:48,101 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:16:48,110 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:16:48,111 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:16:48,112 INFO ]: Start difference. First operand 31 states. Second operand 4 states. [2018-06-25 09:16:48,636 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:16:48,636 INFO ]: Finished difference Result 48 states and 76 transitions. [2018-06-25 09:16:48,636 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:16:48,638 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-25 09:16:48,638 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:16:48,649 INFO ]: With dead ends: 48 [2018-06-25 09:16:48,649 INFO ]: Without dead ends: 48 [2018-06-25 09:16:48,651 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 09:16:48,671 INFO ]: Start minimizeSevpa. Operand 48 states. [2018-06-25 09:16:48,715 INFO ]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-06-25 09:16:48,716 INFO ]: Start removeUnreachable. Operand 48 states. [2018-06-25 09:16:48,718 INFO ]: Finished removeUnreachable. Reduced from 48 states to 48 states and 76 transitions. [2018-06-25 09:16:48,720 INFO ]: Start accepts. Automaton has 48 states and 76 transitions. Word has length 8 [2018-06-25 09:16:48,721 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:16:48,721 INFO ]: Abstraction has 48 states and 76 transitions. [2018-06-25 09:16:48,721 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:16:48,721 INFO ]: Start isEmpty. Operand 48 states and 76 transitions. [2018-06-25 09:16:48,724 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 09:16:48,724 INFO ]: Found error trace [2018-06-25 09:16:48,724 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:16:48,725 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:16:48,725 INFO ]: Analyzing trace with hash 578209467, now seen corresponding path program 1 times [2018-06-25 09:16:48,725 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:16:48,725 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:16:48,726 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:16:48,726 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:16:48,726 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:16:48,730 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:16:48,774 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:16:48,774 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:16:48,774 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 09:16:48,776 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:16:48,776 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:16:48,776 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:16:48,776 INFO ]: Start difference. First operand 48 states and 76 transitions. Second operand 4 states. [2018-06-25 09:16:49,017 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:16:49,017 INFO ]: Finished difference Result 67 states and 106 transitions. [2018-06-25 09:16:49,018 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:16:49,018 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-25 09:16:49,018 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:16:49,021 INFO ]: With dead ends: 67 [2018-06-25 09:16:49,021 INFO ]: Without dead ends: 67 [2018-06-25 09:16:49,022 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 09:16:49,022 INFO ]: Start minimizeSevpa. Operand 67 states. [2018-06-25 09:16:49,032 INFO ]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-06-25 09:16:49,033 INFO ]: Start removeUnreachable. Operand 67 states. [2018-06-25 09:16:49,035 INFO ]: Finished removeUnreachable. Reduced from 67 states to 67 states and 106 transitions. [2018-06-25 09:16:49,035 INFO ]: Start accepts. Automaton has 67 states and 106 transitions. Word has length 8 [2018-06-25 09:16:49,035 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:16:49,035 INFO ]: Abstraction has 67 states and 106 transitions. [2018-06-25 09:16:49,035 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:16:49,035 INFO ]: Start isEmpty. Operand 67 states and 106 transitions. [2018-06-25 09:16:49,038 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 09:16:49,038 INFO ]: Found error trace [2018-06-25 09:16:49,038 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:16:49,038 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:16:49,039 INFO ]: Analyzing trace with hash 782289457, now seen corresponding path program 1 times [2018-06-25 09:16:49,039 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:16:49,039 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:16:49,039 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:16:49,039 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:16:49,039 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:16:49,049 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:16:49,113 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:16:49,113 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:16:49,113 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 09:16:49,114 INFO ]: Interpolant automaton has 3 states [2018-06-25 09:16:49,114 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 09:16:49,114 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 09:16:49,114 INFO ]: Start difference. First operand 67 states and 106 transitions. Second operand 3 states. [2018-06-25 09:16:49,271 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:16:49,271 INFO ]: Finished difference Result 106 states and 172 transitions. [2018-06-25 09:16:49,271 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 09:16:49,271 INFO ]: Start accepts. Automaton has 3 states. Word has length 9 [2018-06-25 09:16:49,271 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:16:49,276 INFO ]: With dead ends: 106 [2018-06-25 09:16:49,276 INFO ]: Without dead ends: 106 [2018-06-25 09:16:49,276 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 09:16:49,276 INFO ]: Start minimizeSevpa. Operand 106 states. [2018-06-25 09:16:49,301 INFO ]: Finished minimizeSevpa. Reduced states from 106 to 70. [2018-06-25 09:16:49,301 INFO ]: Start removeUnreachable. Operand 70 states. [2018-06-25 09:16:49,308 INFO ]: Finished removeUnreachable. Reduced from 70 states to 70 states and 115 transitions. [2018-06-25 09:16:49,308 INFO ]: Start accepts. Automaton has 70 states and 115 transitions. Word has length 9 [2018-06-25 09:16:49,308 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:16:49,308 INFO ]: Abstraction has 70 states and 115 transitions. [2018-06-25 09:16:49,308 INFO ]: Interpolant automaton has 3 states. [2018-06-25 09:16:49,308 INFO ]: Start isEmpty. Operand 70 states and 115 transitions. [2018-06-25 09:16:49,312 INFO ]: Finished isEmpty. Found accepting run of length 19 [2018-06-25 09:16:49,312 INFO ]: Found error trace [2018-06-25 09:16:49,312 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:16:49,312 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:16:49,312 INFO ]: Analyzing trace with hash 1824707139, now seen corresponding path program 1 times [2018-06-25 09:16:49,312 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:16:49,312 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:16:49,319 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:16:49,319 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:16:49,319 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:16:49,350 INFO ]: Conjunction of SSA is sat [2018-06-25 09:16:49,354 INFO ]: Counterexample might be feasible [2018-06-25 09:16:49,369 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 09:16:49 BoogieIcfgContainer [2018-06-25 09:16:49,370 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 09:16:49,370 INFO ]: Toolchain (without parser) took 2166.12 ms. Allocated memory was 308.3 MB in the beginning and 326.6 MB in the end (delta: 18.4 MB). Free memory was 260.8 MB in the beginning and 279.2 MB in the end (delta: -18.3 MB). Peak memory consumption was 10.0 kB. Max. memory is 3.6 GB. [2018-06-25 09:16:49,372 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:16:49,373 INFO ]: ChcToBoogie took 77.31 ms. Allocated memory is still 308.3 MB. Free memory was 258.8 MB in the beginning and 256.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:16:49,373 INFO ]: Boogie Preprocessor took 42.10 ms. Allocated memory is still 308.3 MB. Free memory was 256.8 MB in the beginning and 254.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:16:49,374 INFO ]: RCFGBuilder took 530.31 ms. Allocated memory is still 308.3 MB. Free memory was 254.8 MB in the beginning and 236.9 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:16:49,374 INFO ]: TraceAbstraction took 1508.21 ms. Allocated memory was 308.3 MB in the beginning and 326.6 MB in the end (delta: 18.4 MB). Free memory was 236.9 MB in the beginning and 279.2 MB in the end (delta: -42.3 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:16:49,377 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 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 77.31 ms. Allocated memory is still 308.3 MB. Free memory was 258.8 MB in the beginning and 256.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 42.10 ms. Allocated memory is still 308.3 MB. Free memory was 256.8 MB in the beginning and 254.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 530.31 ms. Allocated memory is still 308.3 MB. Free memory was 254.8 MB in the beginning and 236.9 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1508.21 ms. Allocated memory was 308.3 MB in the beginning and 326.6 MB in the end (delta: 18.4 MB). Free memory was 236.9 MB in the beginning and 279.2 MB in the end (delta: -42.3 MB). There was no memory consumed. 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, 0); [L0] gotoSwitch := gotoSwitch_in; [L0] COND FALSE !(gotoSwitch == 2) [L0] COND FALSE !(gotoSwitch == 1) [L0] assume (((hbv_False_5_Int == hbv_False_6_Int && !(hbv_False_7_Int - hbv_False_8_Int + -1 >= 0)) && !(hbv_False_9_Int == hbv_False_10_Int)) && !(hbv_False_1_Int - hbv_False_2_Int + -1 >= 0)) && hbv_False_3_Int == hbv_False_4_Int; [L0] hhv_INV1_0_Int, hhv_INV1_1_Int, hhv_INV1_2_Int, hhv_INV1_3_Int, hhv_INV1_4_Int, hhv_INV1_5_Int := hbv_False_7_Int, hbv_False_9_Int, hbv_False_8_Int, hbv_False_1_Int, hbv_False_10_Int, hbv_False_2_Int; [L0] havoc hbv_False_7_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_4_Int, hbv_False_10_Int, hbv_False_1_Int, hbv_False_8_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_9_Int; [L0] assume ((((hbv_INV1_7_Int == hbv_INV1_8_Int && !(hhv_INV1_2_Int - hhv_INV1_0_Int + -1 >= 0)) && !(hhv_INV1_5_Int - hhv_INV1_3_Int + -1 >= 0)) && hbv_INV1_5_Int - hbv_INV1_6_Int + -1 >= 0) && hbv_INV1_1_Int == hbv_INV1_2_Int) && hbv_INV1_3_Int - hbv_INV1_4_Int + -1 >= 0; [L0] CALL call gotoProc(2, hhv_INV1_0_Int, hhv_INV1_1_Int, hhv_INV1_2_Int, hhv_INV1_3_Int, hhv_INV1_4_Int, hhv_INV1_5_Int); [L0] gotoSwitch := gotoSwitch_in; [L0] COND TRUE gotoSwitch == 2 [L0] hhv_INV2_0_Int, hhv_INV2_1_Int, hhv_INV2_2_Int, hhv_INV2_3_Int, hhv_INV2_4_Int, hhv_INV2_5_Int := gpav_0_Int, gpav_1_Int, gpav_2_Int, gpav_3_Int, gpav_4_Int, gpav_5_Int; [L0] assume ((((((hbv_INV2_1_Int + 1 == hhv_INV2_2_Int && hbv_INV2_5_Int == hbv_INV2_6_Int) && hbv_INV2_7_Int == hbv_INV2_8_Int) && hhv_INV2_3_Int - hbv_INV2_4_Int + -1 >= 0) && hbv_INV2_2_Int + -2 == hhv_INV2_4_Int) && hhv_INV2_0_Int - hbv_INV2_1_Int + -1 >= 0) && hbv_INV2_4_Int + 1 == hhv_INV2_5_Int) && hbv_INV2_3_Int + -2 + 1 == hhv_INV2_1_Int; [L0] hhv_INV1_0_Int, hhv_INV1_1_Int, hhv_INV1_2_Int, hhv_INV1_3_Int, hhv_INV1_4_Int, hhv_INV1_5_Int := hhv_INV2_0_Int, hbv_INV2_3_Int, hbv_INV2_1_Int, hhv_INV2_3_Int, hbv_INV2_2_Int, hbv_INV2_4_Int; [L0] havoc hbv_INV2_1_Int, hbv_INV2_4_Int, hbv_INV2_6_Int, hbv_INV2_3_Int, hbv_INV2_8_Int, hbv_INV2_2_Int, hbv_INV2_5_Int, hbv_INV2_7_Int; [L0] assume ((-1 * hhv_INV1_2_Int == 0 && -1 * hhv_INV1_5_Int == 0) && hhv_INV1_1_Int == hhv_INV1_4_Int) && hhv_INV1_0_Int == hhv_INV1_3_Int; [L0] RET call gotoProc(2, hhv_INV1_0_Int, hhv_INV1_1_Int, hhv_INV1_2_Int, hhv_INV1_3_Int, hhv_INV1_4_Int, hhv_INV1_5_Int); [L0] hhv_INV1_0_Int, hhv_INV1_1_Int, hhv_INV1_2_Int, hhv_INV1_3_Int, hhv_INV1_4_Int, hhv_INV1_5_Int := hbv_INV1_3_Int, hbv_INV1_9_Int, hbv_INV1_4_Int, hbv_INV1_5_Int, hbv_INV1_10_Int, hbv_INV1_6_Int; [L0] havoc hbv_INV1_9_Int, hbv_INV1_10_Int, hbv_INV1_4_Int, hbv_INV1_2_Int, hbv_INV1_5_Int, hbv_INV1_7_Int, hbv_INV1_8_Int, hbv_INV1_1_Int, hbv_INV1_6_Int, hbv_INV1_3_Int; [L0] assume ((-1 * hhv_INV1_2_Int == 0 && -1 * hhv_INV1_5_Int == 0) && hhv_INV1_1_Int == hhv_INV1_4_Int) && hhv_INV1_0_Int == hhv_INV1_3_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. UNSAFE Result, 1.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 124 SDtfs, 134 SDslu, 74 SDs, 0 SdLazy, 105 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=3, 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, 3 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 326 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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/022c-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_09-16-49-388.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/022c-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_09-16-49-388.csv Received shutdown request...