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_Goto.epf -i /storage/chc-comp/hopv/lia/termination/CE-0CFA03.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:54:45,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:54:45,075 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:54:45,087 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:54:45,088 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:54:45,089 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:54:45,091 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:54:45,093 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:54:45,094 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:54:45,095 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:54:45,096 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:54:45,096 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:54:45,097 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:54:45,098 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:54:45,099 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:54:45,100 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:54:45,102 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:54:45,104 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:54:45,105 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:54:45,107 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:54:45,108 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:54:45,111 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:54:45,111 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:54:45,111 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:54:45,112 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:54:45,113 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:54:45,114 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:54:45,115 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:54:45,116 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:54:45,117 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:54:45,117 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:54:45,118 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:54:45,118 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:54:45,119 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:54:45,120 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:54:45,120 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:54:45,134 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:54:45,134 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:54:45,135 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:54:45,135 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:54:45,136 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:54:45,136 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:54:45,136 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:54:45,137 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:54:45,137 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:54:45,137 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:54:45,137 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:54:45,137 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:54:45,138 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:54:45,138 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:54:45,138 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:54:45,138 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:54:45,138 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:54:45,140 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:54:45,140 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:54:45,187 INFO ]: Repository-Root is: /tmp [2018-06-22 01:54:45,205 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:54:45,211 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:54:45,212 INFO ]: Initializing SmtParser... [2018-06-22 01:54:45,213 INFO ]: SmtParser initialized [2018-06-22 01:54:45,213 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/CE-0CFA03.smt2 [2018-06-22 01:54:45,215 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 01:54:45,319 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/CE-0CFA03.smt2 unknown [2018-06-22 01:54:45,768 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/CE-0CFA03.smt2 [2018-06-22 01:54:45,773 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:54:45,788 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:54:45,788 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:54:45,788 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:54:45,789 INFO ]: ChcToBoogie initialized [2018-06-22 01:54:45,792 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:54:45" (1/1) ... [2018-06-22 01:54:45,904 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:45 Unit [2018-06-22 01:54:45,904 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:54:45,904 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:54:45,905 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:54:45,905 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:54:45,948 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:45" (1/1) ... [2018-06-22 01:54:45,948 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:45" (1/1) ... [2018-06-22 01:54:45,964 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:45" (1/1) ... [2018-06-22 01:54:45,964 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:45" (1/1) ... [2018-06-22 01:54:45,974 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:45" (1/1) ... [2018-06-22 01:54:45,988 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:45" (1/1) ... [2018-06-22 01:54:45,989 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:45" (1/1) ... [2018-06-22 01:54:45,992 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:54:45,992 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:54:45,993 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:54:45,993 INFO ]: RCFGBuilder initialized [2018-06-22 01:54:45,993 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:45" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:54:46,018 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:54:46,018 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:54:46,018 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:54:46,018 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:54:46,018 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:54:46,018 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 01:54:46,472 INFO ]: Using library mode [2018-06-22 01:54:46,473 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:54:46 BoogieIcfgContainer [2018-06-22 01:54:46,473 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:54:46,474 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:54:46,475 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:54:46,484 INFO ]: TraceAbstraction initialized [2018-06-22 01:54:46,484 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:54:45" (1/3) ... [2018-06-22 01:54:46,485 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158a03fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:54:46, skipping insertion in model container [2018-06-22 01:54:46,485 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:54:45" (2/3) ... [2018-06-22 01:54:46,486 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158a03fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:54:46, skipping insertion in model container [2018-06-22 01:54:46,486 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:54:46" (3/3) ... [2018-06-22 01:54:46,488 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:54:46,499 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:54:46,512 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:54:46,572 INFO ]: Using default assertion order modulation [2018-06-22 01:54:46,572 INFO ]: Interprodecural is true [2018-06-22 01:54:46,572 INFO ]: Hoare is false [2018-06-22 01:54:46,573 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:54:46,573 INFO ]: Backedges is TWOTRACK [2018-06-22 01:54:46,573 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:54:46,573 INFO ]: Difference is false [2018-06-22 01:54:46,573 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:54:46,573 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:54:46,598 INFO ]: Start isEmpty. Operand 26 states. [2018-06-22 01:54:46,619 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 01:54:46,619 INFO ]: Found error trace [2018-06-22 01:54:46,620 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:46,621 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:46,628 INFO ]: Analyzing trace with hash 2128207227, now seen corresponding path program 1 times [2018-06-22 01:54:46,630 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:46,630 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:46,675 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:46,675 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:46,675 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:46,712 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:46,754 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:54:46,757 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:54:46,757 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 01:54:46,760 INFO ]: Interpolant automaton has 2 states [2018-06-22 01:54:46,776 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 01:54:46,776 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:54:46,779 INFO ]: Start difference. First operand 26 states. Second operand 2 states. [2018-06-22 01:54:46,799 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:46,799 INFO ]: Finished difference Result 24 states and 30 transitions. [2018-06-22 01:54:46,799 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 01:54:46,800 INFO ]: Start accepts. Automaton has 2 states. Word has length 7 [2018-06-22 01:54:46,801 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:46,812 INFO ]: With dead ends: 24 [2018-06-22 01:54:46,812 INFO ]: Without dead ends: 18 [2018-06-22 01:54:46,815 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:54:46,827 INFO ]: Start minimizeSevpa. Operand 18 states. [2018-06-22 01:54:46,847 INFO ]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-06-22 01:54:46,848 INFO ]: Start removeUnreachable. Operand 18 states. [2018-06-22 01:54:46,850 INFO ]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2018-06-22 01:54:46,851 INFO ]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 7 [2018-06-22 01:54:46,851 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:46,851 INFO ]: Abstraction has 18 states and 21 transitions. [2018-06-22 01:54:46,851 INFO ]: Interpolant automaton has 2 states. [2018-06-22 01:54:46,851 INFO ]: Start isEmpty. Operand 18 states and 21 transitions. [2018-06-22 01:54:46,853 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 01:54:46,853 INFO ]: Found error trace [2018-06-22 01:54:46,853 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:46,853 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:46,853 INFO ]: Analyzing trace with hash 2018814094, now seen corresponding path program 1 times [2018-06-22 01:54:46,853 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:46,853 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:46,854 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:46,854 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:46,854 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:46,864 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:47,054 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:54:47,054 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:54:47,054 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:54:47,056 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:54:47,056 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:54:47,056 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:54:47,062 INFO ]: Start difference. First operand 18 states and 21 transitions. Second operand 4 states. [2018-06-22 01:54:47,315 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:47,315 INFO ]: Finished difference Result 33 states and 39 transitions. [2018-06-22 01:54:47,316 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:54:47,316 INFO ]: Start accepts. Automaton has 4 states. Word has length 10 [2018-06-22 01:54:47,316 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:47,317 INFO ]: With dead ends: 33 [2018-06-22 01:54:47,317 INFO ]: Without dead ends: 33 [2018-06-22 01:54:47,318 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:54:47,318 INFO ]: Start minimizeSevpa. Operand 33 states. [2018-06-22 01:54:47,326 INFO ]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-06-22 01:54:47,326 INFO ]: Start removeUnreachable. Operand 33 states. [2018-06-22 01:54:47,327 INFO ]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2018-06-22 01:54:47,328 INFO ]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 10 [2018-06-22 01:54:47,330 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:47,330 INFO ]: Abstraction has 33 states and 39 transitions. [2018-06-22 01:54:47,330 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:54:47,330 INFO ]: Start isEmpty. Operand 33 states and 39 transitions. [2018-06-22 01:54:47,331 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 01:54:47,331 INFO ]: Found error trace [2018-06-22 01:54:47,331 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:47,331 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:47,331 INFO ]: Analyzing trace with hash 1282873148, now seen corresponding path program 1 times [2018-06-22 01:54:47,331 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:47,331 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:47,332 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:47,332 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:47,332 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:47,371 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:54:47,426 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:54:47,427 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:54:47,427 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:54:47,427 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:54:47,427 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:54:47,427 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:54:47,427 INFO ]: Start difference. First operand 33 states and 39 transitions. Second operand 4 states. [2018-06-22 01:54:47,612 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:54:47,612 INFO ]: Finished difference Result 42 states and 49 transitions. [2018-06-22 01:54:47,612 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:54:47,612 INFO ]: Start accepts. Automaton has 4 states. Word has length 12 [2018-06-22 01:54:47,612 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:54:47,613 INFO ]: With dead ends: 42 [2018-06-22 01:54:47,613 INFO ]: Without dead ends: 33 [2018-06-22 01:54:47,615 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 [2018-06-22 01:54:47,615 INFO ]: Start minimizeSevpa. Operand 33 states. [2018-06-22 01:54:47,619 INFO ]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-06-22 01:54:47,619 INFO ]: Start removeUnreachable. Operand 33 states. [2018-06-22 01:54:47,620 INFO ]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-06-22 01:54:47,620 INFO ]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 12 [2018-06-22 01:54:47,620 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:54:47,620 INFO ]: Abstraction has 33 states and 38 transitions. [2018-06-22 01:54:47,620 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:54:47,620 INFO ]: Start isEmpty. Operand 33 states and 38 transitions. [2018-06-22 01:54:47,621 INFO ]: Finished isEmpty. Found accepting run of length 15 [2018-06-22 01:54:47,621 INFO ]: Found error trace [2018-06-22 01:54:47,621 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:54:47,621 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:54:47,622 INFO ]: Analyzing trace with hash 466196921, now seen corresponding path program 1 times [2018-06-22 01:54:47,622 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:54:47,622 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:54:47,623 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:47,623 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:54:47,623 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:54:47,643 INFO ]: Conjunction of SSA is sat [2018-06-22 01:54:47,655 INFO ]: Counterexample might be feasible [2018-06-22 01:54:47,679 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:54:47 BoogieIcfgContainer [2018-06-22 01:54:47,679 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:54:47,680 INFO ]: Toolchain (without parser) took 1907.25 ms. Allocated memory is still 310.4 MB. Free memory was 252.9 MB in the beginning and 194.8 MB in the end (delta: 58.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 3.6 GB. [2018-06-22 01:54:47,682 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 310.4 MB. Free memory is still 276.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:54:47,682 INFO ]: ChcToBoogie took 115.76 ms. Allocated memory is still 310.4 MB. Free memory was 252.9 MB in the beginning and 249.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:54:47,683 INFO ]: Boogie Preprocessor took 87.49 ms. Allocated memory is still 310.4 MB. Free memory was 249.9 MB in the beginning and 247.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:54:47,683 INFO ]: RCFGBuilder took 480.24 ms. Allocated memory is still 310.4 MB. Free memory was 247.9 MB in the beginning and 229.9 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:54:47,684 INFO ]: TraceAbstraction took 1204.78 ms. Allocated memory is still 310.4 MB. Free memory was 228.9 MB in the beginning and 194.8 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 3.6 GB. [2018-06-22 01:54:47,686 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 310.4 MB. Free memory is still 276.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 115.76 ms. Allocated memory is still 310.4 MB. Free memory was 252.9 MB in the beginning and 249.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 87.49 ms. Allocated memory is still 310.4 MB. Free memory was 249.9 MB in the beginning and 247.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 480.24 ms. Allocated memory is still 310.4 MB. Free memory was 247.9 MB in the beginning and 229.9 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1204.78 ms. Allocated memory is still 310.4 MB. Free memory was 228.9 MB in the beginning and 194.8 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 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, 0, 0, 0, 0, 0, 0, 0, 0); [L0] gotoSwitch := gotoSwitch_in; [L0] COND FALSE !(gotoSwitch == 9) [L0] COND FALSE !(gotoSwitch == 3) [L0] COND FALSE !(gotoSwitch == 2) [L0] assume true; [L0] hhv_failDLRunknownCLN25_0_Int := hbv_False_1_Int; [L0] havoc hbv_False_1_Int; [L0] assume hhv_failDLRunknownCLN25_0_Int == 1 && !(0 == hbv_failDLRunknownCLN25_1_Int); [L0] hhv_omega_1032DLRunknownCLN37_0_Int, hhv_omega_1032DLRunknownCLN37_1_Int, hhv_omega_1032DLRunknownCLN37_2_Int := hbv_failDLRunknownCLN25_2_Int, hbv_failDLRunknownCLN25_3_Int, hbv_failDLRunknownCLN25_1_Int; [L0] havoc hbv_failDLRunknownCLN25_1_Int, hbv_failDLRunknownCLN25_3_Int, hbv_failDLRunknownCLN25_2_Int; [L0] assume hhv_omega_1032DLRunknownCLN37_2_Int == 1 && hhv_omega_1032DLRunknownCLN37_1_Int == hhv_omega_1032DLRunknownCLN37_0_Int; [L0] hhv_omega_without_checking_1162DLRunknownCLN41_0_Int, hhv_omega_without_checking_1162DLRunknownCLN41_1_Int, hhv_omega_without_checking_1162DLRunknownCLN41_2_Int := hhv_omega_1032DLRunknownCLN37_0_Int, hbv_omega_1032DLRunknownCLN37_1_Int, hbv_omega_1032DLRunknownCLN37_2_Int; [L0] havoc hbv_omega_1032DLRunknownCLN37_1_Int, hbv_omega_1032DLRunknownCLN37_2_Int; [L0] assume (((((((((((((((((hbv_omega_without_checking_1162DLRunknownCLN41_14_Int == 0 && hbv_omega_without_checking_1162DLRunknownCLN41_13_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_3_Int == 1) && hbv_omega_without_checking_1162DLRunknownCLN41_8_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_15_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_4_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_12_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_18_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_9_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_7_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_1_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_5_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_6_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_19_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_2_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_17_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_11_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_16_Int == 0) && hbv_omega_without_checking_1162DLRunknownCLN41_10_Int == 0; [L0] hhv_f_1034DLRunknownCLN19_0_Int, hhv_f_1034DLRunknownCLN19_1_Int, hhv_f_1034DLRunknownCLN19_2_Int, hhv_f_1034DLRunknownCLN19_3_Int, hhv_f_1034DLRunknownCLN19_4_Int, hhv_f_1034DLRunknownCLN19_5_Int, hhv_f_1034DLRunknownCLN19_6_Int, hhv_f_1034DLRunknownCLN19_7_Int, hhv_f_1034DLRunknownCLN19_8_Int, hhv_f_1034DLRunknownCLN19_9_Int, hhv_f_1034DLRunknownCLN19_10_Int, hhv_f_1034DLRunknownCLN19_11_Int, hhv_f_1034DLRunknownCLN19_12_Int := hhv_omega_without_checking_1162DLRunknownCLN41_0_Int, hhv_omega_without_checking_1162DLRunknownCLN41_1_Int, hhv_omega_without_checking_1162DLRunknownCLN41_2_Int, hbv_omega_without_checking_1162DLRunknownCLN41_11_Int, hbv_omega_without_checking_1162DLRunknownCLN41_16_Int, hbv_omega_without_checking_1162DLRunknownCLN41_4_Int, hbv_omega_without_checking_1162DLRunknownCLN41_5_Int, hbv_omega_without_checking_1162DLRunknownCLN41_6_Int, hbv_omega_without_checking_1162DLRunknownCLN41_7_Int, hbv_omega_without_checking_1162DLRunknownCLN41_9_Int, hbv_omega_without_checking_1162DLRunknownCLN41_17_Int, hbv_omega_without_checking_1162DLRunknownCLN41_1_Int, hbv_omega_without_checking_1162DLRunknownCLN41_15_Int; [L0] havoc hbv_omega_without_checking_1162DLRunknownCLN41_11_Int, hbv_omega_without_checking_1162DLRunknownCLN41_2_Int, hbv_omega_without_checking_1162DLRunknownCLN41_5_Int, hbv_omega_without_checking_1162DLRunknownCLN41_4_Int, hbv_omega_without_checking_1162DLRunknownCLN41_10_Int, hbv_omega_without_checking_1162DLRunknownCLN41_3_Int, hbv_omega_without_checking_1162DLRunknownCLN41_12_Int, hbv_omega_without_checking_1162DLRunknownCLN41_8_Int, hbv_omega_without_checking_1162DLRunknownCLN41_16_Int, hbv_omega_without_checking_1162DLRunknownCLN41_15_Int, hbv_omega_without_checking_1162DLRunknownCLN41_6_Int, hbv_omega_without_checking_1162DLRunknownCLN41_7_Int, hbv_omega_without_checking_1162DLRunknownCLN41_9_Int, hbv_omega_without_checking_1162DLRunknownCLN41_18_Int, hbv_omega_without_checking_1162DLRunknownCLN41_13_Int, hbv_omega_without_checking_1162DLRunknownCLN41_17_Int, hbv_omega_without_checking_1162DLRunknownCLN41_19_Int, hbv_omega_without_checking_1162DLRunknownCLN41_14_Int, hbv_omega_without_checking_1162DLRunknownCLN41_1_Int; [L0] assume true; [L0] hhv_f_1034DLRunknownCLN23_0_Int, hhv_f_1034DLRunknownCLN23_1_Int, hhv_f_1034DLRunknownCLN23_2_Int, hhv_f_1034DLRunknownCLN23_3_Int, hhv_f_1034DLRunknownCLN23_4_Int, hhv_f_1034DLRunknownCLN23_5_Int, hhv_f_1034DLRunknownCLN23_6_Int, hhv_f_1034DLRunknownCLN23_7_Int, hhv_f_1034DLRunknownCLN23_8_Int, hhv_f_1034DLRunknownCLN23_9_Int, hhv_f_1034DLRunknownCLN23_10_Int, hhv_f_1034DLRunknownCLN23_11_Int, hhv_f_1034DLRunknownCLN23_12_Int := hhv_f_1034DLRunknownCLN19_0_Int, hhv_f_1034DLRunknownCLN19_1_Int, hhv_f_1034DLRunknownCLN19_2_Int, hhv_f_1034DLRunknownCLN19_3_Int, hhv_f_1034DLRunknownCLN19_4_Int, hhv_f_1034DLRunknownCLN19_5_Int, hhv_f_1034DLRunknownCLN19_6_Int, hhv_f_1034DLRunknownCLN19_7_Int, hhv_f_1034DLRunknownCLN19_8_Int, hhv_f_1034DLRunknownCLN19_9_Int, hhv_f_1034DLRunknownCLN19_10_Int, hhv_f_1034DLRunknownCLN19_11_Int, hhv_f_1034DLRunknownCLN19_12_Int; [L0] assume (((((((((((((((((((((hhv_f_1034DLRunknownCLN23_0_Int == 1 && hbv_f_1034DLRunknownCLN23_3_Int == 0) && hhv_f_1034DLRunknownCLN23_1_Int == 0) && hhv_f_1034DLRunknownCLN23_8_Int == 0) && hhv_f_1034DLRunknownCLN23_9_Int == 0) && hhv_f_1034DLRunknownCLN23_12_Int == 0) && hbv_f_1034DLRunknownCLN23_1_Int == 0) && hhv_f_1034DLRunknownCLN23_5_Int == 0) && hhv_f_1034DLRunknownCLN23_6_Int == 0) && hhv_f_1034DLRunknownCLN23_11_Int == 0) && hbv_f_1034DLRunknownCLN23_5_Int == 0) && hhv_f_1034DLRunknownCLN23_2_Int == 0) && hbv_f_1034DLRunknownCLN23_10_Int == 0) && hbv_f_1034DLRunknownCLN23_8_Int == 0) && hbv_f_1034DLRunknownCLN23_6_Int == 0) && hbv_f_1034DLRunknownCLN23_7_Int == 0) && hhv_f_1034DLRunknownCLN23_4_Int == 0) && hbv_f_1034DLRunknownCLN23_2_Int == 0) && hbv_f_1034DLRunknownCLN23_4_Int == 0) && hbv_f_1034DLRunknownCLN23_9_Int == 0) && hhv_f_1034DLRunknownCLN23_3_Int == 0) && hhv_f_1034DLRunknownCLN23_10_Int == 0) && hhv_f_1034DLRunknownCLN23_7_Int == 0; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. UNSAFE Result, 1.1s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 63 SDtfs, 62 SDslu, 24 SDs, 0 SdLazy, 49 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 562 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/CE-0CFA03.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-54-47-697.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/CE-0CFA03.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-54-47-697.csv Received shutdown request...