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/indirectHO01.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:57:01,116 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:57:01,119 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:57:01,134 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:57:01,134 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:57:01,135 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:57:01,137 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:57:01,140 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:57:01,141 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:57:01,143 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:57:01,144 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:57:01,144 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:57:01,145 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:57:01,146 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:57:01,150 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:57:01,151 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:57:01,152 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:57:01,162 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:57:01,163 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:57:01,164 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:57:01,165 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:57:01,170 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:57:01,170 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:57:01,171 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:57:01,171 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:57:01,172 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:57:01,174 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:57:01,175 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:57:01,176 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:57:01,176 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:57:01,177 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:57:01,177 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:57:01,177 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:57:01,182 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:57:01,183 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:57:01,183 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:57:01,200 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:57:01,200 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:57:01,201 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:57:01,201 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:57:01,202 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:57:01,202 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:57:01,202 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:57:01,203 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:57:01,203 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:57:01,203 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:57:01,203 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:57:01,203 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:57:01,204 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:57:01,204 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:57:01,204 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:57:01,204 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:57:01,204 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:57:01,206 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:57:01,206 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:57:01,244 INFO ]: Repository-Root is: /tmp [2018-06-22 01:57:01,265 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:57:01,268 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:57:01,269 INFO ]: Initializing SmtParser... [2018-06-22 01:57:01,269 INFO ]: SmtParser initialized [2018-06-22 01:57:01,269 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/indirectHO01.smt2 [2018-06-22 01:57:01,270 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 01:57:01,372 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/indirectHO01.smt2 unknown [2018-06-22 01:57:01,919 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/indirectHO01.smt2 [2018-06-22 01:57:01,932 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:57:01,948 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:57:01,948 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:57:01,948 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:57:01,948 INFO ]: ChcToBoogie initialized [2018-06-22 01:57:01,951 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:57:01" (1/1) ... [2018-06-22 01:57:02,024 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:02 Unit [2018-06-22 01:57:02,024 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:57:02,025 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:57:02,025 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:57:02,025 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:57:02,045 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:02" (1/1) ... [2018-06-22 01:57:02,045 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:02" (1/1) ... [2018-06-22 01:57:02,055 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:02" (1/1) ... [2018-06-22 01:57:02,055 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:02" (1/1) ... [2018-06-22 01:57:02,072 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:02" (1/1) ... [2018-06-22 01:57:02,087 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:02" (1/1) ... [2018-06-22 01:57:02,089 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:02" (1/1) ... [2018-06-22 01:57:02,092 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:57:02,097 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:57:02,097 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:57:02,097 INFO ]: RCFGBuilder initialized [2018-06-22 01:57:02,098 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:02" (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 01:57:02,124 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:57:02,124 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:57:02,124 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:57:02,124 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:57:02,124 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:57:02,124 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 01:57:03,165 INFO ]: Using library mode [2018-06-22 01:57:03,166 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:57:03 BoogieIcfgContainer [2018-06-22 01:57:03,166 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:57:03,170 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:57:03,170 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:57:03,174 INFO ]: TraceAbstraction initialized [2018-06-22 01:57:03,175 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:57:01" (1/3) ... [2018-06-22 01:57:03,176 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73203dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:57:03, skipping insertion in model container [2018-06-22 01:57:03,176 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:57:02" (2/3) ... [2018-06-22 01:57:03,176 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73203dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:57:03, skipping insertion in model container [2018-06-22 01:57:03,176 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:57:03" (3/3) ... [2018-06-22 01:57:03,178 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:57:03,188 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:57:03,200 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:57:03,248 INFO ]: Using default assertion order modulation [2018-06-22 01:57:03,248 INFO ]: Interprodecural is true [2018-06-22 01:57:03,248 INFO ]: Hoare is false [2018-06-22 01:57:03,248 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:57:03,248 INFO ]: Backedges is TWOTRACK [2018-06-22 01:57:03,248 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:57:03,248 INFO ]: Difference is false [2018-06-22 01:57:03,248 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:57:03,248 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:57:03,272 INFO ]: Start isEmpty. Operand 31 states. [2018-06-22 01:57:03,291 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 01:57:03,297 INFO ]: Found error trace [2018-06-22 01:57:03,298 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:57:03,298 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:57:03,302 INFO ]: Analyzing trace with hash 1254769408, now seen corresponding path program 1 times [2018-06-22 01:57:03,304 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:57:03,304 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:57:03,345 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:03,345 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:03,345 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:03,382 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:57:03,497 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:57:03,501 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:57:03,501 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:57:03,503 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:57:03,520 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:57:03,520 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:57:03,523 INFO ]: Start difference. First operand 31 states. Second operand 4 states. [2018-06-22 01:57:04,063 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:04,064 INFO ]: Finished difference Result 54 states and 81 transitions. [2018-06-22 01:57:04,064 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:57:04,065 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 01:57:04,066 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:04,075 INFO ]: With dead ends: 54 [2018-06-22 01:57:04,075 INFO ]: Without dead ends: 20 [2018-06-22 01:57:04,077 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 01:57:04,093 INFO ]: Start minimizeSevpa. Operand 20 states. [2018-06-22 01:57:04,113 INFO ]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-06-22 01:57:04,114 INFO ]: Start removeUnreachable. Operand 20 states. [2018-06-22 01:57:04,115 INFO ]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2018-06-22 01:57:04,116 INFO ]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 8 [2018-06-22 01:57:04,117 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:04,117 INFO ]: Abstraction has 20 states and 25 transitions. [2018-06-22 01:57:04,117 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:57:04,117 INFO ]: Start isEmpty. Operand 20 states and 25 transitions. [2018-06-22 01:57:04,118 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 01:57:04,118 INFO ]: Found error trace [2018-06-22 01:57:04,118 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:57:04,119 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:57:04,119 INFO ]: Analyzing trace with hash -1952091090, now seen corresponding path program 1 times [2018-06-22 01:57:04,119 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:57:04,119 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:57:04,120 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:04,120 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:04,120 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:04,129 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:57:04,129 INFO ]: Advancing trace checker [2018-06-22 01:57:04,129 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 01:57:04,146 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:04,170 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:57:04,176 INFO ]: Computing forward predicates... [2018-06-22 01:57:04,310 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:57:04,344 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:57:04,344 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:57:04,346 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:57:04,346 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:57:04,346 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:57:04,346 INFO ]: Start difference. First operand 20 states and 25 transitions. Second operand 4 states. [2018-06-22 01:57:04,609 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:04,609 INFO ]: Finished difference Result 37 states and 47 transitions. [2018-06-22 01:57:04,610 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:57:04,610 INFO ]: Start accepts. Automaton has 4 states. Word has length 10 [2018-06-22 01:57:04,610 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:04,611 INFO ]: With dead ends: 37 [2018-06-22 01:57:04,611 INFO ]: Without dead ends: 37 [2018-06-22 01:57:04,612 INFO ]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:57:04,612 INFO ]: Start minimizeSevpa. Operand 37 states. [2018-06-22 01:57:04,618 INFO ]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-06-22 01:57:04,619 INFO ]: Start removeUnreachable. Operand 37 states. [2018-06-22 01:57:04,621 INFO ]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2018-06-22 01:57:04,621 INFO ]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 10 [2018-06-22 01:57:04,622 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:04,622 INFO ]: Abstraction has 37 states and 47 transitions. [2018-06-22 01:57:04,622 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:57:04,622 INFO ]: Start isEmpty. Operand 37 states and 47 transitions. [2018-06-22 01:57:04,623 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 01:57:04,623 INFO ]: Found error trace [2018-06-22 01:57:04,623 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:57:04,623 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:57:04,623 INFO ]: Analyzing trace with hash -1642279235, now seen corresponding path program 1 times [2018-06-22 01:57:04,623 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:57:04,623 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:57:04,624 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:04,624 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:04,624 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:57:04,643 ERROR]: Caught known exception: Unsupported non-linear arithmetic [2018-06-22 01:57:04,643 INFO ]: Advancing trace checker [2018-06-22 01:57:04,643 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-06-22 01:57:04,678 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:57:04,721 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:57:04,723 INFO ]: Computing forward predicates... [2018-06-22 01:57:04,753 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:57:04,774 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:57:04,774 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 01:57:04,774 INFO ]: Interpolant automaton has 3 states [2018-06-22 01:57:04,774 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 01:57:04,774 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:57:04,774 INFO ]: Start difference. First operand 37 states and 47 transitions. Second operand 3 states. [2018-06-22 01:57:04,781 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:57:04,781 INFO ]: Finished difference Result 23 states and 27 transitions. [2018-06-22 01:57:04,781 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 01:57:04,781 INFO ]: Start accepts. Automaton has 3 states. Word has length 12 [2018-06-22 01:57:04,782 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:57:04,782 INFO ]: With dead ends: 23 [2018-06-22 01:57:04,782 INFO ]: Without dead ends: 0 [2018-06-22 01:57:04,782 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 10 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 01:57:04,782 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:57:04,782 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:57:04,782 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:57:04,782 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:57:04,782 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-06-22 01:57:04,782 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:57:04,782 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:57:04,782 INFO ]: Interpolant automaton has 3 states. [2018-06-22 01:57:04,782 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:57:04,782 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:57:04,787 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:57:04 BoogieIcfgContainer [2018-06-22 01:57:04,787 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:57:04,788 INFO ]: Toolchain (without parser) took 2855.42 ms. Allocated memory was 306.2 MB in the beginning and 326.6 MB in the end (delta: 20.4 MB). Free memory was 241.6 MB in the beginning and 255.2 MB in the end (delta: -13.6 MB). Peak memory consumption was 6.9 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:04,793 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:57:04,793 INFO ]: ChcToBoogie took 76.56 ms. Allocated memory is still 306.2 MB. Free memory was 241.6 MB in the beginning and 238.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:04,794 INFO ]: Boogie Preprocessor took 71.85 ms. Allocated memory is still 306.2 MB. Free memory was 238.6 MB in the beginning and 237.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:04,794 INFO ]: RCFGBuilder took 1069.02 ms. Allocated memory is still 306.2 MB. Free memory was 237.6 MB in the beginning and 209.5 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 3.6 GB. [2018-06-22 01:57:04,794 INFO ]: TraceAbstraction took 1617.37 ms. Allocated memory was 306.2 MB in the beginning and 326.6 MB in the end (delta: 20.4 MB). Free memory was 209.5 MB in the beginning and 255.2 MB in the end (delta: -45.7 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:57:04,797 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 76.56 ms. Allocated memory is still 306.2 MB. Free memory was 241.6 MB in the beginning and 238.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 71.85 ms. Allocated memory is still 306.2 MB. Free memory was 238.6 MB in the beginning and 237.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1069.02 ms. Allocated memory is still 306.2 MB. Free memory was 237.6 MB in the beginning and 209.5 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1617.37 ms. Allocated memory was 306.2 MB in the beginning and 326.6 MB in the end (delta: 20.4 MB). Free memory was 209.5 MB in the beginning and 255.2 MB in the end (delta: -45.7 MB). There was no memory consumed. 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, 31 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 102 SDslu, 45 SDs, 0 SdLazy, 84 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 469 SizeOfPredicates, 2 NumberOfNonLiveVariables, 237 ConjunctsInSsa, 7 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 correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/indirectHO01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-57-04-814.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/indirectHO01.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-57-04-814.csv Received shutdown request...