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/vmt-chc-benchmarks/lustre/stalmark_e8_64_e7_80.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 19:54:52,755 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 19:54:52,757 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 19:54:52,770 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 19:54:52,770 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 19:54:52,771 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 19:54:52,775 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 19:54:52,777 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 19:54:52,778 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 19:54:52,779 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 19:54:52,780 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 19:54:52,781 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 19:54:52,781 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 19:54:52,782 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 19:54:52,785 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 19:54:52,786 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 19:54:52,787 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 19:54:52,797 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 19:54:52,798 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 19:54:52,799 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 19:54:52,800 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 19:54:52,802 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 19:54:52,802 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 19:54:52,802 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 19:54:52,806 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 19:54:52,807 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 19:54:52,808 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 19:54:52,808 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 19:54:52,809 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 19:54:52,809 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 19:54:52,813 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 19:54:52,813 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 19:54:52,814 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 19:54:52,814 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 19:54:52,815 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 19:54:52,815 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 19:54:52,834 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 19:54:52,834 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 19:54:52,834 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 19:54:52,834 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 19:54:52,835 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 19:54:52,836 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 19:54:52,836 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 19:54:52,836 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 19:54:52,836 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 19:54:52,836 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 19:54:52,836 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 19:54:52,837 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 19:54:52,837 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 19:54:52,838 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 19:54:52,838 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 19:54:52,838 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 19:54:52,838 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 19:54:52,838 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 19:54:52,838 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 19:54:52,840 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 19:54:52,840 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 19:54:52,884 INFO ]: Repository-Root is: /tmp [2018-06-22 19:54:52,899 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 19:54:52,902 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 19:54:52,903 INFO ]: Initializing SmtParser... [2018-06-22 19:54:52,904 INFO ]: SmtParser initialized [2018-06-22 19:54:52,905 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/stalmark_e8_64_e7_80.smt2 [2018-06-22 19:54:52,906 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 19:54:52,995 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/stalmark_e8_64_e7_80.smt2 unknown [2018-06-22 19:54:53,172 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/stalmark_e8_64_e7_80.smt2 [2018-06-22 19:54:53,177 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 19:54:53,184 INFO ]: Walking toolchain with 4 elements. [2018-06-22 19:54:53,185 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 19:54:53,185 INFO ]: Initializing ChcToBoogie... [2018-06-22 19:54:53,185 INFO ]: ChcToBoogie initialized [2018-06-22 19:54:53,188 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 07:54:53" (1/1) ... [2018-06-22 19:54:53,232 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:53 Unit [2018-06-22 19:54:53,233 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 19:54:53,235 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 19:54:53,235 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 19:54:53,235 INFO ]: Boogie Preprocessor initialized [2018-06-22 19:54:53,259 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:53" (1/1) ... [2018-06-22 19:54:53,259 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:53" (1/1) ... [2018-06-22 19:54:53,266 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:53" (1/1) ... [2018-06-22 19:54:53,266 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:53" (1/1) ... [2018-06-22 19:54:53,270 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:53" (1/1) ... [2018-06-22 19:54:53,271 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:53" (1/1) ... [2018-06-22 19:54:53,273 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:53" (1/1) ... [2018-06-22 19:54:53,274 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 19:54:53,282 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 19:54:53,282 INFO ]: Initializing RCFGBuilder... [2018-06-22 19:54:53,282 INFO ]: RCFGBuilder initialized [2018-06-22 19:54:53,283 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:53" (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 19:54:53,299 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 19:54:53,299 INFO ]: Found specification of procedure False [2018-06-22 19:54:53,299 INFO ]: Found implementation of procedure False [2018-06-22 19:54:53,299 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 19:54:53,299 INFO ]: Found specification of procedure state [2018-06-22 19:54:53,299 INFO ]: Found implementation of procedure state [2018-06-22 19:54:53,299 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 19:54:53,299 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 19:54:53,299 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 19:54:53,508 INFO ]: Using library mode [2018-06-22 19:54:53,508 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:54:53 BoogieIcfgContainer [2018-06-22 19:54:53,508 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 19:54:53,509 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 19:54:53,510 INFO ]: Initializing TraceAbstraction... [2018-06-22 19:54:53,522 INFO ]: TraceAbstraction initialized [2018-06-22 19:54:53,522 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 07:54:53" (1/3) ... [2018-06-22 19:54:53,523 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d81202e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 07:54:53, skipping insertion in model container [2018-06-22 19:54:53,523 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:53" (2/3) ... [2018-06-22 19:54:53,523 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d81202e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:54:53, skipping insertion in model container [2018-06-22 19:54:53,524 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:54:53" (3/3) ... [2018-06-22 19:54:53,525 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 19:54:53,544 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 19:54:53,552 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 19:54:53,597 INFO ]: Using default assertion order modulation [2018-06-22 19:54:53,597 INFO ]: Interprodecural is true [2018-06-22 19:54:53,597 INFO ]: Hoare is false [2018-06-22 19:54:53,597 INFO ]: Compute interpolants for FPandBP [2018-06-22 19:54:53,597 INFO ]: Backedges is TWOTRACK [2018-06-22 19:54:53,597 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 19:54:53,597 INFO ]: Difference is false [2018-06-22 19:54:53,597 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 19:54:53,597 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 19:54:53,610 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 19:54:53,620 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 19:54:53,620 INFO ]: Found error trace [2018-06-22 19:54:53,621 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:54:53,621 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:54:53,626 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 19:54:53,627 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:54:53,628 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:54:53,667 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:53,667 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:54:53,667 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:53,694 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:54:53,786 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 19:54:53,788 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 19:54:53,788 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 19:54:53,790 INFO ]: Interpolant automaton has 4 states [2018-06-22 19:54:53,800 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 19:54:53,801 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 19:54:53,803 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 19:54:53,868 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:54:53,868 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 19:54:53,868 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 19:54:53,869 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 19:54:53,869 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:54:53,883 INFO ]: With dead ends: 13 [2018-06-22 19:54:53,883 INFO ]: Without dead ends: 13 [2018-06-22 19:54:53,885 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 19:54:53,902 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 19:54:53,926 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 19:54:53,927 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 19:54:53,928 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 19:54:53,929 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 19:54:53,929 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:54:53,929 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 19:54:53,929 INFO ]: Interpolant automaton has 4 states. [2018-06-22 19:54:53,929 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 19:54:53,930 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 19:54:53,930 INFO ]: Found error trace [2018-06-22 19:54:53,930 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:54:53,930 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:54:53,930 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 19:54:53,930 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:54:53,930 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:54:53,931 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:53,931 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:54:53,931 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:53,952 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:54:54,214 WARN ]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-06-22 19:54:54,349 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 19:54:54,349 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:54:54,349 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 -t:12000 (exit command is (exit), workingDir is null) [2018-06-22 19:54:54,370 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 19:54:54,409 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:54:54,418 INFO ]: Computing forward predicates... [2018-06-22 19:54:55,141 WARN ]: Spent 204.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2018-06-22 19:54:55,230 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 19:54:55,251 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 19:54:55,251 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-22 19:54:55,251 INFO ]: Interpolant automaton has 8 states [2018-06-22 19:54:55,251 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 19:54:55,252 INFO ]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-06-22 19:54:55,252 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 8 states. [2018-06-22 19:54:56,169 WARN ]: Spent 813.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2018-06-22 19:54:56,280 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:54:56,280 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 19:54:56,281 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 19:54:56,281 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-22 19:54:56,281 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:54:56,282 INFO ]: With dead ends: 15 [2018-06-22 19:54:56,282 INFO ]: Without dead ends: 15 [2018-06-22 19:54:56,283 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-06-22 19:54:56,283 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 19:54:56,285 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 19:54:56,285 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 19:54:56,286 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 19:54:56,286 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 19:54:56,286 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:54:56,286 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 19:54:56,286 INFO ]: Interpolant automaton has 8 states. [2018-06-22 19:54:56,286 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 19:54:56,286 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 19:54:56,287 INFO ]: Found error trace [2018-06-22 19:54:56,287 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:54:56,287 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:54:56,287 INFO ]: Analyzing trace with hash -1649658231, now seen corresponding path program 2 times [2018-06-22 19:54:56,287 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:54:56,287 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:54:56,288 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:56,288 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:54:56,288 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:56,309 INFO ]: Conjunction of SSA is sat [2018-06-22 19:54:56,311 INFO ]: Counterexample might be feasible [2018-06-22 19:54:56,328 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:54:56 BoogieIcfgContainer [2018-06-22 19:54:56,329 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 19:54:56,329 INFO ]: Toolchain (without parser) took 3152.14 ms. Allocated memory was 305.7 MB in the beginning and 325.6 MB in the end (delta: 19.9 MB). Free memory was 260.0 MB in the beginning and 240.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 39.8 MB. Max. memory is 3.6 GB. [2018-06-22 19:54:56,330 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 305.7 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 19:54:56,331 INFO ]: ChcToBoogie took 49.77 ms. Allocated memory is still 305.7 MB. Free memory was 260.0 MB in the beginning and 258.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 19:54:56,331 INFO ]: Boogie Preprocessor took 39.22 ms. Allocated memory is still 305.7 MB. Free memory was 258.1 MB in the beginning and 256.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 19:54:56,332 INFO ]: RCFGBuilder took 226.65 ms. Allocated memory is still 305.7 MB. Free memory was 256.1 MB in the beginning and 248.1 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-22 19:54:56,333 INFO ]: TraceAbstraction took 2819.07 ms. Allocated memory was 305.7 MB in the beginning and 325.6 MB in the end (delta: 19.9 MB). Free memory was 248.1 MB in the beginning and 240.2 MB in the end (delta: 7.9 MB). Peak memory consumption was 27.8 MB. Max. memory is 3.6 GB. [2018-06-22 19:54:56,336 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 305.7 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 49.77 ms. Allocated memory is still 305.7 MB. Free memory was 260.0 MB in the beginning and 258.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 39.22 ms. Allocated memory is still 305.7 MB. Free memory was 258.1 MB in the beginning and 256.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 226.65 ms. Allocated memory is still 305.7 MB. Free memory was 256.1 MB in the beginning and 248.1 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2819.07 ms. Allocated memory was 305.7 MB in the beginning and 325.6 MB in the end (delta: 19.9 MB). Free memory was 248.1 MB in the beginning and 240.2 MB in the end (delta: 7.9 MB). Peak memory consumption was 27.8 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_1_Bool; [L0] CALL call state(hbv_False_2_Bool, hbv_False_3_Bool, hbv_False_4_Bool, hbv_False_5_Bool, hbv_False_6_Bool, hbv_False_7_Bool, hbv_False_1_Bool, hbv_False_8_Bool); [L0] assume (((((((((!((hhv_state_2_Bool || hhv_state_5_Bool) && (!hhv_state_5_Bool || !hhv_state_2_Bool)) && !((!hbv_state_7_Bool || !hbv_state_1_Bool) && (hbv_state_7_Bool || hbv_state_1_Bool))) && !((hbv_state_2_Bool || hbv_state_3_Bool) && (!hbv_state_2_Bool || !hbv_state_3_Bool))) && !((hhv_state_6_Bool || (((!hhv_state_5_Bool || !hhv_state_4_Bool) || !hhv_state_3_Bool) && ((((hhv_state_5_Bool && hhv_state_3_Bool) && hhv_state_4_Bool) || (((!hhv_state_5_Bool && !hhv_state_3_Bool) && hhv_state_4_Bool) && ((!hhv_state_4_Bool && hhv_state_3_Bool) || !hhv_state_5_Bool))) || ((!hhv_state_4_Bool && hhv_state_5_Bool) && !hhv_state_3_Bool)))) && ((((((!hhv_state_5_Bool || !hhv_state_4_Bool) || !hhv_state_3_Bool) && (((!hhv_state_4_Bool || hhv_state_5_Bool) || (hhv_state_5_Bool && (!hhv_state_3_Bool || hhv_state_4_Bool))) || hhv_state_3_Bool)) && ((!hhv_state_5_Bool || hhv_state_4_Bool) || hhv_state_3_Bool)) || !hhv_state_6_Bool) || ((hhv_state_5_Bool && hhv_state_3_Bool) && hhv_state_4_Bool)))) && !((hhv_state_3_Bool || hhv_state_0_Bool) && (!hhv_state_0_Bool || !hhv_state_3_Bool))) && !((hhv_state_4_Bool || hhv_state_1_Bool) && (!hhv_state_1_Bool || !hhv_state_4_Bool))) && !((hhv_state_0_Bool || hbv_state_1_Bool) && (!hhv_state_0_Bool || !hbv_state_1_Bool))) && !((!hbv_state_4_Bool || !hhv_state_2_Bool) && (hhv_state_2_Bool || hbv_state_4_Bool))) && !((!hbv_state_4_Bool || !hbv_state_5_Bool) && (hbv_state_5_Bool || hbv_state_4_Bool))) && !((hbv_state_6_Bool || (((!hbv_state_4_Bool || !hbv_state_3_Bool) || !hbv_state_1_Bool) && (((((!hbv_state_4_Bool && !hbv_state_3_Bool) && (!hbv_state_3_Bool || (hbv_state_4_Bool && !hbv_state_1_Bool))) && hbv_state_1_Bool) || ((hbv_state_3_Bool && hbv_state_4_Bool) && hbv_state_1_Bool)) || ((!hbv_state_4_Bool && hbv_state_3_Bool) && !hbv_state_1_Bool)))) && ((!hbv_state_6_Bool || ((((!hbv_state_3_Bool || hbv_state_4_Bool) || hbv_state_1_Bool) && ((!hbv_state_4_Bool || !hbv_state_3_Bool) || !hbv_state_1_Bool)) && (((hbv_state_3_Bool || (hbv_state_3_Bool && (!hbv_state_4_Bool || hbv_state_1_Bool))) || hbv_state_4_Bool) || !hbv_state_1_Bool))) || ((hbv_state_3_Bool && hbv_state_4_Bool) && hbv_state_1_Bool)))) && !((!hhv_state_1_Bool || !hbv_state_3_Bool) && (hbv_state_3_Bool || hhv_state_1_Bool)); [L0] CALL call state(hbv_state_5_Bool, hbv_state_7_Bool, hbv_state_2_Bool, hbv_state_4_Bool, hbv_state_1_Bool, hbv_state_3_Bool, hbv_state_6_Bool, hbv_state_8_Bool); [L0] assume (((((((((!((hhv_state_2_Bool || hhv_state_5_Bool) && (!hhv_state_5_Bool || !hhv_state_2_Bool)) && !((!hbv_state_7_Bool || !hbv_state_1_Bool) && (hbv_state_7_Bool || hbv_state_1_Bool))) && !((hbv_state_2_Bool || hbv_state_3_Bool) && (!hbv_state_2_Bool || !hbv_state_3_Bool))) && !((hhv_state_6_Bool || (((!hhv_state_5_Bool || !hhv_state_4_Bool) || !hhv_state_3_Bool) && ((((hhv_state_5_Bool && hhv_state_3_Bool) && hhv_state_4_Bool) || (((!hhv_state_5_Bool && !hhv_state_3_Bool) && hhv_state_4_Bool) && ((!hhv_state_4_Bool && hhv_state_3_Bool) || !hhv_state_5_Bool))) || ((!hhv_state_4_Bool && hhv_state_5_Bool) && !hhv_state_3_Bool)))) && ((((((!hhv_state_5_Bool || !hhv_state_4_Bool) || !hhv_state_3_Bool) && (((!hhv_state_4_Bool || hhv_state_5_Bool) || (hhv_state_5_Bool && (!hhv_state_3_Bool || hhv_state_4_Bool))) || hhv_state_3_Bool)) && ((!hhv_state_5_Bool || hhv_state_4_Bool) || hhv_state_3_Bool)) || !hhv_state_6_Bool) || ((hhv_state_5_Bool && hhv_state_3_Bool) && hhv_state_4_Bool)))) && !((hhv_state_3_Bool || hhv_state_0_Bool) && (!hhv_state_0_Bool || !hhv_state_3_Bool))) && !((hhv_state_4_Bool || hhv_state_1_Bool) && (!hhv_state_1_Bool || !hhv_state_4_Bool))) && !((hhv_state_0_Bool || hbv_state_1_Bool) && (!hhv_state_0_Bool || !hbv_state_1_Bool))) && !((!hbv_state_4_Bool || !hhv_state_2_Bool) && (hhv_state_2_Bool || hbv_state_4_Bool))) && !((!hbv_state_4_Bool || !hbv_state_5_Bool) && (hbv_state_5_Bool || hbv_state_4_Bool))) && !((hbv_state_6_Bool || (((!hbv_state_4_Bool || !hbv_state_3_Bool) || !hbv_state_1_Bool) && (((((!hbv_state_4_Bool && !hbv_state_3_Bool) && (!hbv_state_3_Bool || (hbv_state_4_Bool && !hbv_state_1_Bool))) && hbv_state_1_Bool) || ((hbv_state_3_Bool && hbv_state_4_Bool) && hbv_state_1_Bool)) || ((!hbv_state_4_Bool && hbv_state_3_Bool) && !hbv_state_1_Bool)))) && ((!hbv_state_6_Bool || ((((!hbv_state_3_Bool || hbv_state_4_Bool) || hbv_state_1_Bool) && ((!hbv_state_4_Bool || !hbv_state_3_Bool) || !hbv_state_1_Bool)) && (((hbv_state_3_Bool || (hbv_state_3_Bool && (!hbv_state_4_Bool || hbv_state_1_Bool))) || hbv_state_4_Bool) || !hbv_state_1_Bool))) || ((hbv_state_3_Bool && hbv_state_4_Bool) && hbv_state_1_Bool)))) && !((!hhv_state_1_Bool || !hbv_state_3_Bool) && (hbv_state_3_Bool || hhv_state_1_Bool)); [L0] CALL call state(hbv_state_5_Bool, hbv_state_7_Bool, hbv_state_2_Bool, hbv_state_4_Bool, hbv_state_1_Bool, hbv_state_3_Bool, hbv_state_6_Bool, hbv_state_8_Bool); [L0] assume (((((!hhv_state_1_Bool && !((!hhv_state_1_Bool || !hhv_state_4_Bool) && (hhv_state_1_Bool || hhv_state_4_Bool))) && !((!hhv_state_3_Bool || !hhv_state_0_Bool) && (hhv_state_0_Bool || hhv_state_3_Bool))) && !!hhv_state_2_Bool) && !((hhv_state_6_Bool || (((!hhv_state_3_Bool || !hhv_state_5_Bool) || !hhv_state_4_Bool) && (((((!hhv_state_3_Bool && !hhv_state_5_Bool) && (!hhv_state_5_Bool || (hhv_state_3_Bool && !hhv_state_4_Bool))) && hhv_state_4_Bool) || ((hhv_state_5_Bool && hhv_state_3_Bool) && hhv_state_4_Bool)) || ((!hhv_state_3_Bool && hhv_state_5_Bool) && !hhv_state_4_Bool)))) && ((!hhv_state_6_Bool || ((((!hhv_state_5_Bool || hhv_state_3_Bool) || hhv_state_4_Bool) && ((!hhv_state_3_Bool || !hhv_state_5_Bool) || !hhv_state_4_Bool)) && (((hhv_state_5_Bool || (hhv_state_5_Bool && (!hhv_state_3_Bool || hhv_state_4_Bool))) || hhv_state_3_Bool) || !hhv_state_4_Bool))) || ((hhv_state_5_Bool && hhv_state_3_Bool) && hhv_state_4_Bool)))) && !hhv_state_0_Bool) && !((hhv_state_2_Bool || hhv_state_5_Bool) && (!hhv_state_2_Bool || !hhv_state_5_Bool)); [L0] RET call state(hbv_state_5_Bool, hbv_state_7_Bool, hbv_state_2_Bool, hbv_state_4_Bool, hbv_state_1_Bool, hbv_state_3_Bool, hbv_state_6_Bool, hbv_state_8_Bool); [L0] RET call state(hbv_state_5_Bool, hbv_state_7_Bool, hbv_state_2_Bool, hbv_state_4_Bool, hbv_state_1_Bool, hbv_state_3_Bool, hbv_state_6_Bool, hbv_state_8_Bool); [L0] RET call state(hbv_False_2_Bool, hbv_False_3_Bool, hbv_False_4_Bool, hbv_False_5_Bool, hbv_False_6_Bool, hbv_False_7_Bool, hbv_False_1_Bool, hbv_False_8_Bool); [L0] RET call False(); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 2.7s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 6 SDslu, 48 SDs, 0 SdLazy, 33 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1500 SizeOfPredicates, 13 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/6 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/stalmark_e8_64_e7_80.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_19-54-56-348.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stalmark_e8_64_e7_80.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_19-54-56-348.csv Received shutdown request...