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_No_Goto.epf -i '/storage/chc-comp/llreve-bench/smt2/faulty__inlining!.smt2' -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:55:48,908 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:55:48,910 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:55:48,922 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:55:48,923 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:55:48,924 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:55:48,925 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:55:48,926 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:55:48,928 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:55:48,929 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:55:48,929 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:55:48,930 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:55:48,931 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:55:48,932 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:55:48,932 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:55:48,933 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:55:48,935 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:55:48,937 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:55:48,938 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:55:48,939 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:55:48,941 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:55:48,943 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:55:48,943 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:55:48,943 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:55:48,944 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:55:48,945 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:55:48,946 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:55:48,947 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:55:48,948 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:55:48,948 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:55:48,949 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:55:48,950 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:55:48,950 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:55:48,951 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:55:48,951 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:55:48,952 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 11:55:48,967 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:55:48,967 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:55:48,967 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:55:48,967 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:55:48,968 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:55:48,969 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:55:48,969 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:55:48,969 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:55:48,969 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:55:48,970 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:55:48,970 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:55:48,970 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:55:48,970 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:55:48,971 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:55:48,971 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:55:48,971 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:55:48,971 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:55:48,971 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:55:48,972 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:55:48,973 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:55:48,973 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:55:49,018 INFO ]: Repository-Root is: /tmp [2018-06-22 11:55:49,031 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:55:49,034 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:55:49,036 INFO ]: Initializing SmtParser... [2018-06-22 11:55:49,038 INFO ]: SmtParser initialized [2018-06-22 11:55:49,039 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/faulty__inlining!.smt2 [2018-06-22 11:55:49,040 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 11:55:49,118 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/faulty__inlining!.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@3df12bb5 [2018-06-22 11:55:49,363 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/faulty__inlining!.smt2 [2018-06-22 11:55:49,368 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:55:49,374 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:55:49,374 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:55:49,374 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:55:49,375 INFO ]: ChcToBoogie initialized [2018-06-22 11:55:49,379 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:55:49" (1/1) ... [2018-06-22 11:55:49,429 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:55:49 Unit [2018-06-22 11:55:49,429 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:55:49,430 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:55:49,430 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:55:49,430 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:55:49,453 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:55:49" (1/1) ... [2018-06-22 11:55:49,453 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:55:49" (1/1) ... [2018-06-22 11:55:49,461 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:55:49" (1/1) ... [2018-06-22 11:55:49,461 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:55:49" (1/1) ... [2018-06-22 11:55:49,465 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:55:49" (1/1) ... [2018-06-22 11:55:49,469 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:55:49" (1/1) ... [2018-06-22 11:55:49,470 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:55:49" (1/1) ... [2018-06-22 11:55:49,473 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:55:49,474 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:55:49,474 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:55:49,474 INFO ]: RCFGBuilder initialized [2018-06-22 11:55:49,475 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:55:49" (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) [2018-06-22 11:55:49,491 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:55:49,491 INFO ]: Found specification of procedure False [2018-06-22 11:55:49,491 INFO ]: Found implementation of procedure False [2018-06-22 11:55:49,491 INFO ]: Specification and implementation of procedure INV_REC_f__1 given in one single declaration [2018-06-22 11:55:49,491 INFO ]: Found specification of procedure INV_REC_f__1 [2018-06-22 11:55:49,491 INFO ]: Found implementation of procedure INV_REC_f__1 [2018-06-22 11:55:49,491 INFO ]: Specification and implementation of procedure INV_REC_f__1_PRE given in one single declaration [2018-06-22 11:55:49,491 INFO ]: Found specification of procedure INV_REC_f__1_PRE [2018-06-22 11:55:49,491 INFO ]: Found implementation of procedure INV_REC_f__1_PRE [2018-06-22 11:55:49,492 INFO ]: Specification and implementation of procedure INV_REC_f^f_PRE given in one single declaration [2018-06-22 11:55:49,492 INFO ]: Found specification of procedure INV_REC_f^f_PRE [2018-06-22 11:55:49,492 INFO ]: Found implementation of procedure INV_REC_f^f_PRE [2018-06-22 11:55:49,492 INFO ]: Specification and implementation of procedure INV_REC_f__2 given in one single declaration [2018-06-22 11:55:49,492 INFO ]: Found specification of procedure INV_REC_f__2 [2018-06-22 11:55:49,492 INFO ]: Found implementation of procedure INV_REC_f__2 [2018-06-22 11:55:49,492 INFO ]: Specification and implementation of procedure INV_REC_f__2_PRE given in one single declaration [2018-06-22 11:55:49,492 INFO ]: Found specification of procedure INV_REC_f__2_PRE [2018-06-22 11:55:49,492 INFO ]: Found implementation of procedure INV_REC_f__2_PRE [2018-06-22 11:55:49,492 INFO ]: Specification and implementation of procedure INV_REC_f^f given in one single declaration [2018-06-22 11:55:49,492 INFO ]: Found specification of procedure INV_REC_f^f [2018-06-22 11:55:49,492 INFO ]: Found implementation of procedure INV_REC_f^f [2018-06-22 11:55:49,492 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:55:49,492 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:55:49,492 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:55:49,896 INFO ]: Using library mode [2018-06-22 11:55:49,897 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:55:49 BoogieIcfgContainer [2018-06-22 11:55:49,897 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:55:49,898 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:55:49,899 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:55:49,905 INFO ]: TraceAbstraction initialized [2018-06-22 11:55:49,905 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:55:49" (1/3) ... [2018-06-22 11:55:49,907 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc7e081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:55:49, skipping insertion in model container [2018-06-22 11:55:49,907 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:55:49" (2/3) ... [2018-06-22 11:55:49,907 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc7e081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:55:49, skipping insertion in model container [2018-06-22 11:55:49,907 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:55:49" (3/3) ... [2018-06-22 11:55:49,909 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:55:49,918 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:55:49,928 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:55:49,969 INFO ]: Using default assertion order modulation [2018-06-22 11:55:49,969 INFO ]: Interprodecural is true [2018-06-22 11:55:49,969 INFO ]: Hoare is false [2018-06-22 11:55:49,969 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:55:49,969 INFO ]: Backedges is TWOTRACK [2018-06-22 11:55:49,969 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:55:49,969 INFO ]: Difference is false [2018-06-22 11:55:49,969 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:55:49,969 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:55:49,983 INFO ]: Start isEmpty. Operand 47 states. [2018-06-22 11:55:49,995 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:55:49,995 INFO ]: Found error trace [2018-06-22 11:55:49,996 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:55:49,996 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:55:50,001 INFO ]: Analyzing trace with hash 129915238, now seen corresponding path program 1 times [2018-06-22 11:55:50,003 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:55:50,003 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:55:50,040 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:55:50,040 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:55:50,040 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:55:50,052 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:55:50,083 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:55:50,085 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:55:50,085 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:55:50,087 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:55:50,102 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:55:50,103 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:55:50,106 INFO ]: Start difference. First operand 47 states. Second operand 2 states. [2018-06-22 11:55:50,130 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:55:50,130 INFO ]: Finished difference Result 44 states and 67 transitions. [2018-06-22 11:55:50,130 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:55:50,131 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:55:50,131 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:55:50,151 INFO ]: With dead ends: 44 [2018-06-22 11:55:50,151 INFO ]: Without dead ends: 44 [2018-06-22 11:55:50,152 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 11:55:50,167 INFO ]: Start minimizeSevpa. Operand 44 states. [2018-06-22 11:55:50,192 INFO ]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-06-22 11:55:50,194 INFO ]: Start removeUnreachable. Operand 44 states. [2018-06-22 11:55:50,197 INFO ]: Finished removeUnreachable. Reduced from 44 states to 44 states and 67 transitions. [2018-06-22 11:55:50,198 INFO ]: Start accepts. Automaton has 44 states and 67 transitions. Word has length 5 [2018-06-22 11:55:50,198 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:55:50,198 INFO ]: Abstraction has 44 states and 67 transitions. [2018-06-22 11:55:50,198 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:55:50,198 INFO ]: Start isEmpty. Operand 44 states and 67 transitions. [2018-06-22 11:55:50,201 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:55:50,201 INFO ]: Found error trace [2018-06-22 11:55:50,201 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:55:50,201 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:55:50,201 INFO ]: Analyzing trace with hash 159720922, now seen corresponding path program 1 times [2018-06-22 11:55:50,201 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:55:50,201 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:55:50,202 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:55:50,202 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:55:50,202 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:55:50,226 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:55:50,295 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:55:50,295 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:55:50,295 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:55:50,297 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:55:50,297 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:55:50,297 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:55:50,297 INFO ]: Start difference. First operand 44 states and 67 transitions. Second operand 4 states. [2018-06-22 11:55:50,474 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:55:50,474 INFO ]: Finished difference Result 48 states and 76 transitions. [2018-06-22 11:55:50,475 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:55:50,475 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 11:55:50,475 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:55:50,477 INFO ]: With dead ends: 48 [2018-06-22 11:55:50,477 INFO ]: Without dead ends: 48 [2018-06-22 11:55:50,478 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:55:50,478 INFO ]: Start minimizeSevpa. Operand 48 states. [2018-06-22 11:55:50,494 INFO ]: Finished minimizeSevpa. Reduced states from 48 to 46. [2018-06-22 11:55:50,494 INFO ]: Start removeUnreachable. Operand 46 states. [2018-06-22 11:55:50,496 INFO ]: Finished removeUnreachable. Reduced from 46 states to 46 states and 73 transitions. [2018-06-22 11:55:50,496 INFO ]: Start accepts. Automaton has 46 states and 73 transitions. Word has length 13 [2018-06-22 11:55:50,497 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:55:50,497 INFO ]: Abstraction has 46 states and 73 transitions. [2018-06-22 11:55:50,497 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:55:50,497 INFO ]: Start isEmpty. Operand 46 states and 73 transitions. [2018-06-22 11:55:50,499 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:55:50,499 INFO ]: Found error trace [2018-06-22 11:55:50,499 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:55:50,499 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:55:50,499 INFO ]: Analyzing trace with hash 1635120923, now seen corresponding path program 1 times [2018-06-22 11:55:50,499 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:55:50,499 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:55:50,500 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:55:50,500 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:55:50,500 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:55:50,511 INFO ]: Conjunction of SSA is sat [2018-06-22 11:55:50,513 INFO ]: Counterexample might be feasible [2018-06-22 11:55:50,534 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:55:50 BoogieIcfgContainer [2018-06-22 11:55:50,534 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:55:50,535 INFO ]: Toolchain (without parser) took 1167.09 ms. Allocated memory is still 308.8 MB. Free memory was 263.3 MB in the beginning and 221.4 MB in the end (delta: 42.0 MB). Peak memory consumption was 42.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:55:50,537 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:55:50,538 INFO ]: ChcToBoogie took 55.43 ms. Allocated memory is still 308.8 MB. Free memory was 263.3 MB in the beginning and 261.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:55:50,538 INFO ]: Boogie Preprocessor took 43.07 ms. Allocated memory is still 308.8 MB. Free memory was 261.3 MB in the beginning and 259.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:55:50,539 INFO ]: RCFGBuilder took 423.34 ms. Allocated memory is still 308.8 MB. Free memory was 259.3 MB in the beginning and 247.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:55:50,540 INFO ]: TraceAbstraction took 635.78 ms. Allocated memory is still 308.8 MB. Free memory was 247.3 MB in the beginning and 221.4 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:55:50,544 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 55.43 ms. Allocated memory is still 308.8 MB. Free memory was 263.3 MB in the beginning and 261.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 43.07 ms. Allocated memory is still 308.8 MB. Free memory was 261.3 MB in the beginning and 259.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 423.34 ms. Allocated memory is still 308.8 MB. Free memory was 259.3 MB in the beginning and 247.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 635.78 ms. Allocated memory is still 308.8 MB. Free memory was 247.3 MB in the beginning and 221.4 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call False(); [L0] assume ((hbv_False_3_Int == hbv_False_1_Int && hbv_False_3_Int > 0) && !(hbv_False_1_Int > 1)) && !((if hbv_False_2_Int + 1 < 0 then 0 else hbv_False_2_Int + 1) == (if hbv_False_1_Int < 2 then 0 else hbv_False_1_Int)); [L0] CALL call INV_REC_f__1(hbv_False_3_Int - 1, hbv_False_2_Int); [L0] assume !(hhv_INV_REC_f__1_0_Int > 0) && hhv_INV_REC_f__1_1_Int == (if hhv_INV_REC_f__1_0_Int < 0 then 0 else hhv_INV_REC_f__1_0_Int); [L0] CALL call INV_REC_f__1_PRE(hhv_INV_REC_f__1_0_Int); [L0] assume ((hbv_INV_REC_f__1_PRE_2_Int == hbv_INV_REC_f__1_PRE_1_Int && hhv_INV_REC_f__1_PRE_0_Int == hbv_INV_REC_f__1_PRE_2_Int - 1) && hbv_INV_REC_f__1_PRE_2_Int > 0) && !(hbv_INV_REC_f__1_PRE_1_Int > 1); [L0] RET call INV_REC_f__1_PRE(hhv_INV_REC_f__1_0_Int); [L0] RET call INV_REC_f__1(hbv_False_3_Int - 1, hbv_False_2_Int); [L0] RET call False(); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 47 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 127 SDtfs, 1 SDslu, 102 SDs, 0 SdLazy, 33 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/faulty__inlining!.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-55-50-562.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/faulty__inlining!.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-55-50-562.csv Received shutdown request...