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/indirect00.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:56:40,644 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:56:40,647 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:56:40,662 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:56:40,662 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:56:40,663 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:56:40,668 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:56:40,670 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:56:40,671 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:56:40,680 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:56:40,681 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:56:40,681 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:56:40,682 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:56:40,685 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:56:40,686 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:56:40,687 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:56:40,689 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:56:40,700 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:56:40,702 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:56:40,703 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:56:40,704 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:56:40,708 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-06-22 01:56:40,716 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:56:40,734 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:56:40,734 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:56:40,736 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:56:40,737 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:56:40,738 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:56:40,738 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:56:40,738 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:56:40,738 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:56:40,739 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:56:40,739 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:56:40,739 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:56:40,739 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:56:40,739 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:56:40,741 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:56:40,741 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:56:40,741 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:56:40,742 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:56:40,743 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:56:40,743 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:56:40,797 INFO ]: Repository-Root is: /tmp [2018-06-22 01:56:40,815 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:56:40,822 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:56:40,824 INFO ]: Initializing SmtParser... [2018-06-22 01:56:40,824 INFO ]: SmtParser initialized [2018-06-22 01:56:40,824 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/indirect00.smt2 [2018-06-22 01:56:40,826 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 01:56:40,923 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/indirect00.smt2 unknown [2018-06-22 01:56:41,206 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/indirect00.smt2 [2018-06-22 01:56:41,219 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:56:41,229 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:56:41,229 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:56:41,229 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:56:41,229 INFO ]: ChcToBoogie initialized [2018-06-22 01:56:41,234 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:56:41" (1/1) ... [2018-06-22 01:56:41,292 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:41 Unit [2018-06-22 01:56:41,292 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:56:41,293 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:56:41,293 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:56:41,293 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:56:41,315 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:41" (1/1) ... [2018-06-22 01:56:41,315 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:41" (1/1) ... [2018-06-22 01:56:41,321 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:41" (1/1) ... [2018-06-22 01:56:41,322 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:41" (1/1) ... [2018-06-22 01:56:41,327 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:41" (1/1) ... [2018-06-22 01:56:41,330 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:41" (1/1) ... [2018-06-22 01:56:41,333 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:41" (1/1) ... [2018-06-22 01:56:41,334 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:56:41,335 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:56:41,335 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:56:41,335 INFO ]: RCFGBuilder initialized [2018-06-22 01:56:41,336 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:41" (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 01:56:41,351 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:56:41,351 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:56:41,352 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:56:41,352 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:56:41,352 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:56:41,352 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 01:56:41,679 INFO ]: Using library mode [2018-06-22 01:56:41,680 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:56:41 BoogieIcfgContainer [2018-06-22 01:56:41,680 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:56:41,681 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:56:41,681 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:56:41,684 INFO ]: TraceAbstraction initialized [2018-06-22 01:56:41,685 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:56:41" (1/3) ... [2018-06-22 01:56:41,686 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5ba82a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:56:41, skipping insertion in model container [2018-06-22 01:56:41,686 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:56:41" (2/3) ... [2018-06-22 01:56:41,686 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5ba82a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:56:41, skipping insertion in model container [2018-06-22 01:56:41,686 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:56:41" (3/3) ... [2018-06-22 01:56:41,688 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:56:41,696 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:56:41,703 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:56:41,739 INFO ]: Using default assertion order modulation [2018-06-22 01:56:41,739 INFO ]: Interprodecural is true [2018-06-22 01:56:41,739 INFO ]: Hoare is false [2018-06-22 01:56:41,739 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:56:41,739 INFO ]: Backedges is TWOTRACK [2018-06-22 01:56:41,739 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:56:41,739 INFO ]: Difference is false [2018-06-22 01:56:41,739 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:56:41,739 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:56:41,754 INFO ]: Start isEmpty. Operand 14 states. [2018-06-22 01:56:41,763 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-22 01:56:41,763 INFO ]: Found error trace [2018-06-22 01:56:41,764 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-22 01:56:41,765 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:41,769 INFO ]: Analyzing trace with hash -886079305, now seen corresponding path program 1 times [2018-06-22 01:56:41,770 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:41,770 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:41,809 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:41,809 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:41,809 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:41,837 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:41,868 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:56:41,870 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:41,870 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 01:56:41,872 INFO ]: Interpolant automaton has 2 states [2018-06-22 01:56:41,882 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 01:56:41,882 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:56:41,885 INFO ]: Start difference. First operand 14 states. Second operand 2 states. [2018-06-22 01:56:41,903 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:41,903 INFO ]: Finished difference Result 12 states and 12 transitions. [2018-06-22 01:56:41,903 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 01:56:41,904 INFO ]: Start accepts. Automaton has 2 states. Word has length 6 [2018-06-22 01:56:41,904 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:41,910 INFO ]: With dead ends: 12 [2018-06-22 01:56:41,910 INFO ]: Without dead ends: 12 [2018-06-22 01:56:41,912 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 01:56:41,924 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-22 01:56:41,939 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-22 01:56:41,940 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-22 01:56:41,940 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-06-22 01:56:41,941 INFO ]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 6 [2018-06-22 01:56:41,941 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:41,941 INFO ]: Abstraction has 12 states and 12 transitions. [2018-06-22 01:56:41,941 INFO ]: Interpolant automaton has 2 states. [2018-06-22 01:56:41,941 INFO ]: Start isEmpty. Operand 12 states and 12 transitions. [2018-06-22 01:56:41,942 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 01:56:41,942 INFO ]: Found error trace [2018-06-22 01:56:41,942 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:41,942 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:41,942 INFO ]: Analyzing trace with hash -817992453, now seen corresponding path program 1 times [2018-06-22 01:56:41,942 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:41,942 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:41,943 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:41,943 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:41,943 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:41,959 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:42,044 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:56:42,045 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:42,045 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:56:42,046 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:56:42,046 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:56:42,046 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:56:42,047 INFO ]: Start difference. First operand 12 states and 12 transitions. Second operand 4 states. [2018-06-22 01:56:42,199 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:42,199 INFO ]: Finished difference Result 15 states and 15 transitions. [2018-06-22 01:56:42,200 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 01:56:42,200 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 01:56:42,200 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:42,200 INFO ]: With dead ends: 15 [2018-06-22 01:56:42,200 INFO ]: Without dead ends: 15 [2018-06-22 01:56:42,201 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 01:56:42,201 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 01:56:42,203 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 13. [2018-06-22 01:56:42,203 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 01:56:42,203 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-22 01:56:42,203 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 9 [2018-06-22 01:56:42,203 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:42,203 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-22 01:56:42,203 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:56:42,203 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-22 01:56:42,203 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 01:56:42,203 INFO ]: Found error trace [2018-06-22 01:56:42,204 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:56:42,204 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:56:42,206 INFO ]: Analyzing trace with hash 1596683578, now seen corresponding path program 1 times [2018-06-22 01:56:42,206 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:56:42,206 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:56:42,207 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:42,207 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:42,207 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:56:42,219 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:56:42,220 INFO ]: Advancing trace checker [2018-06-22 01:56:42,220 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 01:56:42,238 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:56:42,302 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:56:42,314 INFO ]: Computing forward predicates... [2018-06-22 01:56:42,694 INFO ]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 01:56:42,726 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:56:42,726 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 01:56:42,726 INFO ]: Interpolant automaton has 6 states [2018-06-22 01:56:42,727 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 01:56:42,727 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-22 01:56:42,727 INFO ]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2018-06-22 01:56:43,166 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:56:43,166 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-22 01:56:43,167 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 01:56:43,168 INFO ]: Start accepts. Automaton has 6 states. Word has length 12 [2018-06-22 01:56:43,168 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:56:43,168 INFO ]: With dead ends: 10 [2018-06-22 01:56:43,168 INFO ]: Without dead ends: 0 [2018-06-22 01:56:43,168 INFO ]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-06-22 01:56:43,168 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:56:43,168 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:56:43,168 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:56:43,169 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:56:43,169 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-06-22 01:56:43,169 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:56:43,169 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:56:43,169 INFO ]: Interpolant automaton has 6 states. [2018-06-22 01:56:43,169 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:56:43,169 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:56:43,175 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:56:43 BoogieIcfgContainer [2018-06-22 01:56:43,175 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:56:43,176 INFO ]: Toolchain (without parser) took 1956.25 ms. Allocated memory is still 308.3 MB. Free memory was 258.8 MB in the beginning and 207.0 MB in the end (delta: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 3.6 GB. [2018-06-22 01:56:43,178 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 308.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:56:43,178 INFO ]: ChcToBoogie took 63.03 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. [2018-06-22 01:56:43,179 INFO ]: Boogie Preprocessor took 41.65 ms. Allocated memory is still 308.3 MB. Free memory was 256.8 MB in the beginning and 255.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:56:43,179 INFO ]: RCFGBuilder took 344.85 ms. Allocated memory is still 308.3 MB. Free memory was 255.8 MB in the beginning and 244.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 3.6 GB. [2018-06-22 01:56:43,182 INFO ]: TraceAbstraction took 1493.94 ms. Allocated memory is still 308.3 MB. Free memory was 243.7 MB in the beginning and 207.0 MB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 3.6 GB. [2018-06-22 01:56:43,186 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 308.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 63.03 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 41.65 ms. Allocated memory is still 308.3 MB. Free memory was 256.8 MB in the beginning and 255.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 344.85 ms. Allocated memory is still 308.3 MB. Free memory was 255.8 MB in the beginning and 244.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1493.94 ms. Allocated memory is still 308.3 MB. Free memory was 243.7 MB in the beginning and 207.0 MB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 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, 14 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 26 SDtfs, 17 SDslu, 28 SDs, 0 SdLazy, 14 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 503 SizeOfPredicates, 4 NumberOfNonLiveVariables, 121 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 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/indirect00.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-56-43-208.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/indirect00.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-56-43-208.csv Received shutdown request...