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/alias_partial03.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:53:50,915 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:53:50,918 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:53:50,932 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:53:50,932 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:53:50,933 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:53:50,934 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:53:50,938 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:53:50,940 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:53:50,942 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:53:50,943 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:53:50,943 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:53:50,944 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:53:50,945 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:53:50,948 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:53:50,949 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:53:50,951 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:53:50,961 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:53:50,962 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:53:50,963 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:53:50,967 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:53:50,969 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-06-22 01:53:50,978 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:53:50,979 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:53:50,980 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:53:50,980 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:53:50,982 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:53:50,983 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:53:50,983 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:53:51,004 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:53:51,004 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:53:51,006 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:53:51,006 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:53:51,007 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:53:51,007 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:53:51,007 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:53:51,008 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:53:51,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:53:51,008 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:53:51,008 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:53:51,008 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:53:51,009 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:53:51,009 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:53:51,009 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:53:51,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:53:51,009 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:53:51,011 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:53:51,012 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:53:51,062 INFO ]: Repository-Root is: /tmp [2018-06-22 01:53:51,079 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:53:51,084 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:53:51,086 INFO ]: Initializing SmtParser... [2018-06-22 01:53:51,086 INFO ]: SmtParser initialized [2018-06-22 01:53:51,087 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/alias_partial03.smt2 [2018-06-22 01:53:51,088 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 01:53:51,169 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/alias_partial03.smt2 unknown [2018-06-22 01:53:51,574 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/alias_partial03.smt2 [2018-06-22 01:53:51,579 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:53:51,585 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:53:51,586 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:53:51,586 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:53:51,586 INFO ]: ChcToBoogie initialized [2018-06-22 01:53:51,593 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:53:51" (1/1) ... [2018-06-22 01:53:51,700 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:51 Unit [2018-06-22 01:53:51,700 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:53:51,701 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:53:51,701 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:53:51,701 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:53:51,723 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:51" (1/1) ... [2018-06-22 01:53:51,724 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:51" (1/1) ... [2018-06-22 01:53:51,731 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:51" (1/1) ... [2018-06-22 01:53:51,732 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:51" (1/1) ... [2018-06-22 01:53:51,745 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:51" (1/1) ... [2018-06-22 01:53:51,750 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:51" (1/1) ... [2018-06-22 01:53:51,751 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:51" (1/1) ... [2018-06-22 01:53:51,754 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:53:51,754 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:53:51,754 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:53:51,754 INFO ]: RCFGBuilder initialized [2018-06-22 01:53:51,755 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:51" (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 01:53:51,769 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:53:51,769 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:53:51,769 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:53:51,769 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:53:51,769 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:53:51,769 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 01:53:52,227 INFO ]: Using library mode [2018-06-22 01:53:52,227 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:53:52 BoogieIcfgContainer [2018-06-22 01:53:52,228 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:53:52,229 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:53:52,229 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:53:52,232 INFO ]: TraceAbstraction initialized [2018-06-22 01:53:52,233 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:53:51" (1/3) ... [2018-06-22 01:53:52,234 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b02d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:53:52, skipping insertion in model container [2018-06-22 01:53:52,234 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:51" (2/3) ... [2018-06-22 01:53:52,234 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32b02d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:53:52, skipping insertion in model container [2018-06-22 01:53:52,234 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:53:52" (3/3) ... [2018-06-22 01:53:52,236 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:53:52,247 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:53:52,260 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:53:52,319 INFO ]: Using default assertion order modulation [2018-06-22 01:53:52,319 INFO ]: Interprodecural is true [2018-06-22 01:53:52,320 INFO ]: Hoare is false [2018-06-22 01:53:52,320 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:53:52,320 INFO ]: Backedges is TWOTRACK [2018-06-22 01:53:52,320 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:53:52,320 INFO ]: Difference is false [2018-06-22 01:53:52,320 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:53:52,320 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:53:52,343 INFO ]: Start isEmpty. Operand 24 states. [2018-06-22 01:53:52,358 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 01:53:52,359 INFO ]: Found error trace [2018-06-22 01:53:52,359 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:53:52,360 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:53:52,363 INFO ]: Analyzing trace with hash -1992750749, now seen corresponding path program 1 times [2018-06-22 01:53:52,365 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:53:52,365 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:53:52,405 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:52,405 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:53:52,405 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:52,437 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:53:52,477 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:53:52,479 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:53:52,479 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 01:53:52,481 INFO ]: Interpolant automaton has 2 states [2018-06-22 01:53:52,492 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 01:53:52,492 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:53:52,495 INFO ]: Start difference. First operand 24 states. Second operand 2 states. [2018-06-22 01:53:52,517 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:53:52,517 INFO ]: Finished difference Result 22 states and 29 transitions. [2018-06-22 01:53:52,517 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 01:53:52,519 INFO ]: Start accepts. Automaton has 2 states. Word has length 7 [2018-06-22 01:53:52,519 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:53:52,528 INFO ]: With dead ends: 22 [2018-06-22 01:53:52,529 INFO ]: Without dead ends: 17 [2018-06-22 01:53:52,530 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 01:53:52,543 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 01:53:52,566 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 01:53:52,568 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 01:53:52,569 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2018-06-22 01:53:52,570 INFO ]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 7 [2018-06-22 01:53:52,571 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:53:52,571 INFO ]: Abstraction has 17 states and 21 transitions. [2018-06-22 01:53:52,571 INFO ]: Interpolant automaton has 2 states. [2018-06-22 01:53:52,571 INFO ]: Start isEmpty. Operand 17 states and 21 transitions. [2018-06-22 01:53:52,572 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 01:53:52,572 INFO ]: Found error trace [2018-06-22 01:53:52,572 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:53:52,572 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:53:52,573 INFO ]: Analyzing trace with hash -346644286, now seen corresponding path program 1 times [2018-06-22 01:53:52,573 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:53:52,573 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:53:52,574 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:52,574 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:53:52,574 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:52,586 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:53:52,702 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:53:52,702 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:53:52,702 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:53:52,703 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:53:52,704 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:53:52,704 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:53:52,704 INFO ]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2018-06-22 01:53:53,147 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:53:53,147 INFO ]: Finished difference Result 30 states and 37 transitions. [2018-06-22 01:53:53,148 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:53:53,148 INFO ]: Start accepts. Automaton has 4 states. Word has length 11 [2018-06-22 01:53:53,148 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:53:53,149 INFO ]: With dead ends: 30 [2018-06-22 01:53:53,149 INFO ]: Without dead ends: 30 [2018-06-22 01:53:53,150 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 01:53:53,150 INFO ]: Start minimizeSevpa. Operand 30 states. [2018-06-22 01:53:53,155 INFO ]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-06-22 01:53:53,155 INFO ]: Start removeUnreachable. Operand 30 states. [2018-06-22 01:53:53,156 INFO ]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2018-06-22 01:53:53,156 INFO ]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 11 [2018-06-22 01:53:53,158 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:53:53,158 INFO ]: Abstraction has 30 states and 37 transitions. [2018-06-22 01:53:53,158 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:53:53,158 INFO ]: Start isEmpty. Operand 30 states and 37 transitions. [2018-06-22 01:53:53,158 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 01:53:53,158 INFO ]: Found error trace [2018-06-22 01:53:53,158 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:53:53,158 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:53:53,159 INFO ]: Analyzing trace with hash 1952607484, now seen corresponding path program 1 times [2018-06-22 01:53:53,159 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:53:53,159 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:53:53,160 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:53,160 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:53:53,160 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:53,167 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:53:53,231 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:53:53,231 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:53:53,231 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:53:53,232 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:53:53,232 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:53:53,232 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:53:53,232 INFO ]: Start difference. First operand 30 states and 37 transitions. Second operand 4 states. [2018-06-22 01:53:53,358 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:53:53,358 INFO ]: Finished difference Result 37 states and 45 transitions. [2018-06-22 01:53:53,358 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:53:53,358 INFO ]: Start accepts. Automaton has 4 states. Word has length 11 [2018-06-22 01:53:53,358 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:53:53,359 INFO ]: With dead ends: 37 [2018-06-22 01:53:53,359 INFO ]: Without dead ends: 30 [2018-06-22 01:53:53,359 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 01:53:53,360 INFO ]: Start minimizeSevpa. Operand 30 states. [2018-06-22 01:53:53,363 INFO ]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-06-22 01:53:53,364 INFO ]: Start removeUnreachable. Operand 30 states. [2018-06-22 01:53:53,366 INFO ]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2018-06-22 01:53:53,366 INFO ]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 11 [2018-06-22 01:53:53,366 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:53:53,366 INFO ]: Abstraction has 30 states and 36 transitions. [2018-06-22 01:53:53,366 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:53:53,366 INFO ]: Start isEmpty. Operand 30 states and 36 transitions. [2018-06-22 01:53:53,367 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 01:53:53,367 INFO ]: Found error trace [2018-06-22 01:53:53,367 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:53:53,367 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:53:53,367 INFO ]: Analyzing trace with hash 1394549639, now seen corresponding path program 1 times [2018-06-22 01:53:53,367 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:53:53,367 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:53:53,368 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:53,368 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:53:53,368 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:53,390 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:53:53,465 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:53:53,465 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:53:53,465 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 01:53:53,465 INFO ]: Interpolant automaton has 3 states [2018-06-22 01:53:53,466 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 01:53:53,466 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:53:53,466 INFO ]: Start difference. First operand 30 states and 36 transitions. Second operand 3 states. [2018-06-22 01:53:53,484 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:53:53,484 INFO ]: Finished difference Result 23 states and 26 transitions. [2018-06-22 01:53:53,484 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 01:53:53,484 INFO ]: Start accepts. Automaton has 3 states. Word has length 13 [2018-06-22 01:53:53,484 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:53:53,484 INFO ]: With dead ends: 23 [2018-06-22 01:53:53,484 INFO ]: Without dead ends: 0 [2018-06-22 01:53:53,485 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 [2018-06-22 01:53:53,485 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:53:53,485 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:53:53,485 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:53:53,485 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:53:53,485 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-06-22 01:53:53,485 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:53:53,485 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:53:53,485 INFO ]: Interpolant automaton has 3 states. [2018-06-22 01:53:53,485 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:53:53,485 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:53:53,490 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:53:53 BoogieIcfgContainer [2018-06-22 01:53:53,490 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:53:53,490 INFO ]: Toolchain (without parser) took 1911.32 ms. Allocated memory is still 308.8 MB. Free memory was 255.2 MB in the beginning and 199.0 MB in the end (delta: 56.2 MB). Peak memory consumption was 56.2 MB. Max. memory is 3.6 GB. [2018-06-22 01:53:53,492 INFO ]: SmtParser took 0.09 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. [2018-06-22 01:53:53,492 INFO ]: ChcToBoogie took 115.02 ms. Allocated memory is still 308.8 MB. Free memory was 255.2 MB in the beginning and 253.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:53:53,493 INFO ]: Boogie Preprocessor took 52.62 ms. Allocated memory is still 308.8 MB. Free memory was 253.2 MB in the beginning and 251.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:53:53,493 INFO ]: RCFGBuilder took 473.33 ms. Allocated memory is still 308.8 MB. Free memory was 251.2 MB in the beginning and 235.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:53:53,494 INFO ]: TraceAbstraction took 1260.84 ms. Allocated memory is still 308.8 MB. Free memory was 235.1 MB in the beginning and 199.0 MB in the end (delta: 36.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 3.6 GB. [2018-06-22 01:53:53,496 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 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 115.02 ms. Allocated memory is still 308.8 MB. Free memory was 255.2 MB in the beginning and 253.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 52.62 ms. Allocated memory is still 308.8 MB. Free memory was 253.2 MB in the beginning and 251.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 473.33 ms. Allocated memory is still 308.8 MB. Free memory was 251.2 MB in the beginning and 235.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1260.84 ms. Allocated memory is still 308.8 MB. Free memory was 235.1 MB in the beginning and 199.0 MB in the end (delta: 36.1 MB). Peak memory consumption was 36.1 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 80 SDtfs, 59 SDslu, 34 SDs, 0 SdLazy, 53 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 808 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/alias_partial03.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-53-53-515.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/alias_partial03.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-53-53-515.csv Received shutdown request...