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/llreve-bench/smt2/faulty__inlining!.smt2' -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 02:08:56,507 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 02:08:56,508 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 02:08:56,524 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 02:08:56,524 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 02:08:56,525 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 02:08:56,527 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 02:08:56,529 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 02:08:56,531 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 02:08:56,531 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 02:08:56,532 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 02:08:56,532 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 02:08:56,533 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 02:08:56,534 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 02:08:56,535 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 02:08:56,536 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 02:08:56,538 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 02:08:56,540 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 02:08:56,542 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 02:08:56,543 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 02:08:56,544 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 02:08:56,546 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 02:08:56,547 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 02:08:56,547 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 02:08:56,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 02:08:56,549 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 02:08:56,554 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 02:08:56,555 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 02:08:56,556 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 02:08:56,557 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 02:08:56,557 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 02:08:56,558 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 02:08:56,558 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 02:08:56,559 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 02:08:56,560 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 02:08:56,560 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 02:08:56,575 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 02:08:56,575 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 02:08:56,576 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 02:08:56,576 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 02:08:56,577 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 02:08:56,577 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 02:08:56,578 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 02:08:56,578 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 02:08:56,578 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 02:08:56,578 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 02:08:56,578 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 02:08:56,579 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 02:08:56,579 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 02:08:56,579 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 02:08:56,579 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 02:08:56,580 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 02:08:56,580 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 02:08:56,581 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 02:08:56,582 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 02:08:56,628 INFO ]: Repository-Root is: /tmp [2018-06-22 02:08:56,649 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 02:08:56,653 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 02:08:56,655 INFO ]: Initializing SmtParser... [2018-06-22 02:08:56,655 INFO ]: SmtParser initialized [2018-06-22 02:08:56,656 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/faulty__inlining!.smt2 [2018-06-22 02:08:56,658 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 02:08:56,764 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@741e30b6 [2018-06-22 02:08:56,990 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/faulty__inlining!.smt2 [2018-06-22 02:08:56,994 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 02:08:57,003 INFO ]: Walking toolchain with 4 elements. [2018-06-22 02:08:57,003 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 02:08:57,003 INFO ]: Initializing ChcToBoogie... [2018-06-22 02:08:57,003 INFO ]: ChcToBoogie initialized [2018-06-22 02:08:57,007 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 02:08:56" (1/1) ... [2018-06-22 02:08:57,082 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:08:57 Unit [2018-06-22 02:08:57,082 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 02:08:57,083 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 02:08:57,083 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 02:08:57,083 INFO ]: Boogie Preprocessor initialized [2018-06-22 02:08:57,106 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:08:57" (1/1) ... [2018-06-22 02:08:57,106 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:08:57" (1/1) ... [2018-06-22 02:08:57,115 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:08:57" (1/1) ... [2018-06-22 02:08:57,115 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:08:57" (1/1) ... [2018-06-22 02:08:57,132 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:08:57" (1/1) ... [2018-06-22 02:08:57,135 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:08:57" (1/1) ... [2018-06-22 02:08:57,137 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:08:57" (1/1) ... [2018-06-22 02:08:57,148 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 02:08:57,148 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 02:08:57,148 INFO ]: Initializing RCFGBuilder... [2018-06-22 02:08:57,149 INFO ]: RCFGBuilder initialized [2018-06-22 02:08:57,154 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:08:57" (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 02:08:57,168 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 02:08:57,168 INFO ]: Found specification of procedure gotoProc [2018-06-22 02:08:57,168 INFO ]: Found implementation of procedure gotoProc [2018-06-22 02:08:57,168 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 02:08:57,168 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 02:08:57,168 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 02:08:57,640 INFO ]: Using library mode [2018-06-22 02:08:57,640 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:08:57 BoogieIcfgContainer [2018-06-22 02:08:57,641 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 02:08:57,643 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 02:08:57,643 INFO ]: Initializing TraceAbstraction... [2018-06-22 02:08:57,649 INFO ]: TraceAbstraction initialized [2018-06-22 02:08:57,649 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 02:08:56" (1/3) ... [2018-06-22 02:08:57,650 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db80951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 02:08:57, skipping insertion in model container [2018-06-22 02:08:57,650 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:08:57" (2/3) ... [2018-06-22 02:08:57,650 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db80951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:08:57, skipping insertion in model container [2018-06-22 02:08:57,650 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:08:57" (3/3) ... [2018-06-22 02:08:57,654 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 02:08:57,663 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 02:08:57,674 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 02:08:57,729 INFO ]: Using default assertion order modulation [2018-06-22 02:08:57,730 INFO ]: Interprodecural is true [2018-06-22 02:08:57,730 INFO ]: Hoare is false [2018-06-22 02:08:57,730 INFO ]: Compute interpolants for FPandBP [2018-06-22 02:08:57,730 INFO ]: Backedges is TWOTRACK [2018-06-22 02:08:57,730 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 02:08:57,730 INFO ]: Difference is false [2018-06-22 02:08:57,730 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 02:08:57,730 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 02:08:57,750 INFO ]: Start isEmpty. Operand 29 states. [2018-06-22 02:08:57,767 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 02:08:57,767 INFO ]: Found error trace [2018-06-22 02:08:57,769 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 02:08:57,770 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 02:08:57,775 INFO ]: Analyzing trace with hash -297960860, now seen corresponding path program 1 times [2018-06-22 02:08:57,777 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 02:08:57,778 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 02:08:57,819 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:08:57,819 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:08:57,819 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:08:57,845 INFO ]: Conjunction of SSA is unsat [2018-06-22 02:08:57,874 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 02:08:57,877 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 02:08:57,877 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 02:08:57,879 INFO ]: Interpolant automaton has 2 states [2018-06-22 02:08:57,890 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 02:08:57,890 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 02:08:57,893 INFO ]: Start difference. First operand 29 states. Second operand 2 states. [2018-06-22 02:08:57,915 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 02:08:57,915 INFO ]: Finished difference Result 27 states and 45 transitions. [2018-06-22 02:08:57,915 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 02:08:57,917 INFO ]: Start accepts. Automaton has 2 states. Word has length 7 [2018-06-22 02:08:57,917 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 02:08:57,928 INFO ]: With dead ends: 27 [2018-06-22 02:08:57,928 INFO ]: Without dead ends: 27 [2018-06-22 02:08:57,930 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 02:08:57,946 INFO ]: Start minimizeSevpa. Operand 27 states. [2018-06-22 02:08:57,971 INFO ]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-06-22 02:08:57,973 INFO ]: Start removeUnreachable. Operand 27 states. [2018-06-22 02:08:57,975 INFO ]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2018-06-22 02:08:57,976 INFO ]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 7 [2018-06-22 02:08:57,976 INFO ]: Finished accepts. word is rejected. [2018-06-22 02:08:57,976 INFO ]: Abstraction has 27 states and 45 transitions. [2018-06-22 02:08:57,976 INFO ]: Interpolant automaton has 2 states. [2018-06-22 02:08:57,976 INFO ]: Start isEmpty. Operand 27 states and 45 transitions. [2018-06-22 02:08:57,977 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 02:08:57,977 INFO ]: Found error trace [2018-06-22 02:08:57,977 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 02:08:57,978 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 02:08:57,978 INFO ]: Analyzing trace with hash -651752638, now seen corresponding path program 1 times [2018-06-22 02:08:57,978 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 02:08:57,978 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 02:08:57,979 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:08:57,979 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:08:57,979 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:08:57,987 INFO ]: Conjunction of SSA is unsat [2018-06-22 02:08:58,070 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 02:08:58,070 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 02:08:58,070 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 02:08:58,071 INFO ]: Interpolant automaton has 4 states [2018-06-22 02:08:58,071 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 02:08:58,071 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 02:08:58,071 INFO ]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2018-06-22 02:08:58,559 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 02:08:58,559 INFO ]: Finished difference Result 51 states and 87 transitions. [2018-06-22 02:08:58,560 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 02:08:58,560 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 02:08:58,560 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 02:08:58,563 INFO ]: With dead ends: 51 [2018-06-22 02:08:58,563 INFO ]: Without dead ends: 51 [2018-06-22 02:08:58,564 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 02:08:58,564 INFO ]: Start minimizeSevpa. Operand 51 states. [2018-06-22 02:08:58,576 INFO ]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-06-22 02:08:58,577 INFO ]: Start removeUnreachable. Operand 51 states. [2018-06-22 02:08:58,581 INFO ]: Finished removeUnreachable. Reduced from 51 states to 51 states and 87 transitions. [2018-06-22 02:08:58,581 INFO ]: Start accepts. Automaton has 51 states and 87 transitions. Word has length 8 [2018-06-22 02:08:58,581 INFO ]: Finished accepts. word is rejected. [2018-06-22 02:08:58,581 INFO ]: Abstraction has 51 states and 87 transitions. [2018-06-22 02:08:58,581 INFO ]: Interpolant automaton has 4 states. [2018-06-22 02:08:58,582 INFO ]: Start isEmpty. Operand 51 states and 87 transitions. [2018-06-22 02:08:58,582 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 02:08:58,582 INFO ]: Found error trace [2018-06-22 02:08:58,582 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 02:08:58,582 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 02:08:58,583 INFO ]: Analyzing trace with hash 801996590, now seen corresponding path program 1 times [2018-06-22 02:08:58,583 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 02:08:58,583 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 02:08:58,584 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:08:58,584 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:08:58,584 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:08:58,588 INFO ]: Conjunction of SSA is unsat [2018-06-22 02:08:58,626 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 02:08:58,626 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 02:08:58,626 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 02:08:58,628 INFO ]: Interpolant automaton has 4 states [2018-06-22 02:08:58,628 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 02:08:58,628 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 02:08:58,628 INFO ]: Start difference. First operand 51 states and 87 transitions. Second operand 4 states. [2018-06-22 02:08:58,849 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 02:08:58,849 INFO ]: Finished difference Result 71 states and 122 transitions. [2018-06-22 02:08:58,849 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 02:08:58,849 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 02:08:58,849 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 02:08:58,853 INFO ]: With dead ends: 71 [2018-06-22 02:08:58,853 INFO ]: Without dead ends: 71 [2018-06-22 02:08:58,853 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 02:08:58,854 INFO ]: Start minimizeSevpa. Operand 71 states. [2018-06-22 02:08:58,864 INFO ]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-06-22 02:08:58,864 INFO ]: Start removeUnreachable. Operand 71 states. [2018-06-22 02:08:58,867 INFO ]: Finished removeUnreachable. Reduced from 71 states to 71 states and 122 transitions. [2018-06-22 02:08:58,867 INFO ]: Start accepts. Automaton has 71 states and 122 transitions. Word has length 9 [2018-06-22 02:08:58,867 INFO ]: Finished accepts. word is rejected. [2018-06-22 02:08:58,867 INFO ]: Abstraction has 71 states and 122 transitions. [2018-06-22 02:08:58,867 INFO ]: Interpolant automaton has 4 states. [2018-06-22 02:08:58,867 INFO ]: Start isEmpty. Operand 71 states and 122 transitions. [2018-06-22 02:08:58,868 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 02:08:58,868 INFO ]: Found error trace [2018-06-22 02:08:58,869 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 02:08:58,869 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 02:08:58,869 INFO ]: Analyzing trace with hash -1681794644, now seen corresponding path program 1 times [2018-06-22 02:08:58,869 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 02:08:58,869 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 02:08:58,870 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:08:58,870 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:08:58,870 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:08:58,879 INFO ]: Conjunction of SSA is unsat [2018-06-22 02:08:58,941 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 02:08:58,942 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 02:08:58,942 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 02:08:58,942 INFO ]: Interpolant automaton has 4 states [2018-06-22 02:08:58,942 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 02:08:58,942 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 02:08:58,942 INFO ]: Start difference. First operand 71 states and 122 transitions. Second operand 4 states. [2018-06-22 02:08:59,373 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 02:08:59,373 INFO ]: Finished difference Result 91 states and 157 transitions. [2018-06-22 02:08:59,376 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 02:08:59,376 INFO ]: Start accepts. Automaton has 4 states. Word has length 11 [2018-06-22 02:08:59,376 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 02:08:59,379 INFO ]: With dead ends: 91 [2018-06-22 02:08:59,379 INFO ]: Without dead ends: 91 [2018-06-22 02:08:59,379 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 02:08:59,379 INFO ]: Start minimizeSevpa. Operand 91 states. [2018-06-22 02:08:59,397 INFO ]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-06-22 02:08:59,397 INFO ]: Start removeUnreachable. Operand 91 states. [2018-06-22 02:08:59,401 INFO ]: Finished removeUnreachable. Reduced from 91 states to 91 states and 157 transitions. [2018-06-22 02:08:59,401 INFO ]: Start accepts. Automaton has 91 states and 157 transitions. Word has length 11 [2018-06-22 02:08:59,401 INFO ]: Finished accepts. word is rejected. [2018-06-22 02:08:59,401 INFO ]: Abstraction has 91 states and 157 transitions. [2018-06-22 02:08:59,401 INFO ]: Interpolant automaton has 4 states. [2018-06-22 02:08:59,401 INFO ]: Start isEmpty. Operand 91 states and 157 transitions. [2018-06-22 02:08:59,403 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 02:08:59,403 INFO ]: Found error trace [2018-06-22 02:08:59,403 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 02:08:59,403 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 02:08:59,403 INFO ]: Analyzing trace with hash 683541774, now seen corresponding path program 1 times [2018-06-22 02:08:59,403 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 02:08:59,403 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 02:08:59,406 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:08:59,406 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 02:08:59,406 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 02:08:59,427 INFO ]: Conjunction of SSA is sat [2018-06-22 02:08:59,431 INFO ]: Counterexample might be feasible [2018-06-22 02:08:59,449 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:08:59 BoogieIcfgContainer [2018-06-22 02:08:59,449 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 02:08:59,450 INFO ]: Toolchain (without parser) took 2455.44 ms. Allocated memory was 306.2 MB in the beginning and 325.1 MB in the end (delta: 18.9 MB). Free memory was 260.7 MB in the beginning and 282.0 MB in the end (delta: -21.3 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 02:08:59,452 INFO ]: SmtParser took 0.10 ms. Allocated memory is still 306.2 MB. Free memory is still 271.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 02:08:59,453 INFO ]: ChcToBoogie took 79.45 ms. Allocated memory is still 306.2 MB. Free memory was 260.7 MB in the beginning and 258.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 02:08:59,453 INFO ]: Boogie Preprocessor took 64.64 ms. Allocated memory is still 306.2 MB. Free memory was 258.7 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 02:08:59,454 INFO ]: RCFGBuilder took 492.15 ms. Allocated memory is still 306.2 MB. Free memory was 256.8 MB in the beginning and 243.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 3.6 GB. [2018-06-22 02:08:59,454 INFO ]: TraceAbstraction took 1806.11 ms. Allocated memory was 306.2 MB in the beginning and 325.1 MB in the end (delta: 18.9 MB). Free memory was 243.8 MB in the beginning and 282.0 MB in the end (delta: -38.3 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 02:08:59,458 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.10 ms. Allocated memory is still 306.2 MB. Free memory is still 271.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 79.45 ms. Allocated memory is still 306.2 MB. Free memory was 260.7 MB in the beginning and 258.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 64.64 ms. Allocated memory is still 306.2 MB. Free memory was 258.7 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. * RCFGBuilder took 492.15 ms. Allocated memory is still 306.2 MB. Free memory was 256.8 MB in the beginning and 243.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1806.11 ms. Allocated memory was 306.2 MB in the beginning and 325.1 MB in the end (delta: 18.9 MB). Free memory was 243.8 MB in the beginning and 282.0 MB in the end (delta: -38.3 MB). There was no memory consumed. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call gotoProc(0, 0, 0, 0, 0); [L0] gotoSwitch := gotoSwitch_in; [L0] COND FALSE !(gotoSwitch == 6) [L0] COND FALSE !(gotoSwitch == 5) [L0] COND FALSE !(gotoSwitch == 3) [L0] COND FALSE !(gotoSwitch == 1) [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] hhv_INV_REC_f__1_0_Int, hhv_INV_REC_f__1_1_Int := hbv_False_3_Int - 1, hbv_False_2_Int; [L0] havoc hbv_False_2_Int, hbv_False_3_Int, hbv_False_1_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] hhv_INV_REC_f__1_PRE_0_Int := 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 gotoProc(0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. UNSAFE Result, 1.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 185 SDtfs, 192 SDslu, 65 SDs, 0 SdLazy, 165 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=4, 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 575 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 incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/faulty__inlining!.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_02-08-59-476.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/faulty__inlining!.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_02-08-59-476.csv Received shutdown request...