java -Xss4m -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/vmt-chc-benchmarks/lustre/ILLINOIS_4_e7_2651_e7_2847.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 16:08:18,789 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 16:08:18,792 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 16:08:18,804 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 16:08:18,805 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 16:08:18,805 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 16:08:18,809 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 16:08:18,812 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 16:08:18,813 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 16:08:18,815 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 16:08:18,816 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 16:08:18,816 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 16:08:18,817 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 16:08:18,818 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 16:08:18,819 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 16:08:18,820 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 16:08:18,821 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 16:08:18,828 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 16:08:18,830 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 16:08:18,832 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 16:08:18,833 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 16:08:18,836 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 16:08:18,836 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 16:08:18,836 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 16:08:18,837 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 16:08:18,838 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 16:08:18,838 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 16:08:18,839 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 16:08:18,840 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 16:08:18,840 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 16:08:18,841 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 16:08:18,841 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 16:08:18,842 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 16:08:18,842 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 16:08:18,843 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 16:08:18,843 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 16:08:18,867 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 16:08:18,867 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 16:08:18,868 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 16:08:18,868 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 16:08:18,869 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 16:08:18,869 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 16:08:18,869 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 16:08:18,870 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 16:08:18,870 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 16:08:18,870 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 16:08:18,870 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 16:08:18,870 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 16:08:18,871 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 16:08:18,871 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 16:08:18,871 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 16:08:18,871 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 16:08:18,871 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 16:08:18,872 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 16:08:18,872 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 16:08:18,872 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 16:08:18,872 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 16:08:18,874 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 16:08:18,874 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 16:08:18,924 INFO ]: Repository-Root is: /tmp [2018-06-25 16:08:18,941 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 16:08:18,947 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 16:08:18,949 INFO ]: Initializing SmtParser... [2018-06-25 16:08:18,949 INFO ]: SmtParser initialized [2018-06-25 16:08:18,950 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/ILLINOIS_4_e7_2651_e7_2847.smt2 [2018-06-25 16:08:18,951 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 [2018-06-25 16:08:19,039 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/ILLINOIS_4_e7_2651_e7_2847.smt2 unknown [2018-06-25 16:08:19,681 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/ILLINOIS_4_e7_2651_e7_2847.smt2 [2018-06-25 16:08:19,685 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 16:08:19,703 INFO ]: Walking toolchain with 4 elements. [2018-06-25 16:08:19,704 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 16:08:19,704 INFO ]: Initializing ChcToBoogie... [2018-06-25 16:08:19,704 INFO ]: ChcToBoogie initialized [2018-06-25 16:08:19,707 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:08:19" (1/1) ... [2018-06-25 16:08:19,783 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:08:19 Unit [2018-06-25 16:08:19,783 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 16:08:19,785 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 16:08:19,785 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 16:08:19,785 INFO ]: Boogie Preprocessor initialized [2018-06-25 16:08:19,808 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:08:19" (1/1) ... [2018-06-25 16:08:19,808 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:08:19" (1/1) ... [2018-06-25 16:08:19,830 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:08:19" (1/1) ... [2018-06-25 16:08:19,830 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:08:19" (1/1) ... [2018-06-25 16:08:19,851 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:08:19" (1/1) ... [2018-06-25 16:08:19,852 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:08:19" (1/1) ... [2018-06-25 16:08:19,856 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:08:19" (1/1) ... [2018-06-25 16:08:19,869 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 16:08:19,870 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 16:08:19,870 INFO ]: Initializing RCFGBuilder... [2018-06-25 16:08:19,870 INFO ]: RCFGBuilder initialized [2018-06-25 16:08:19,871 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:08:19" (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 [2018-06-25 16:08:19,893 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 16:08:19,893 INFO ]: Found specification of procedure gotoProc [2018-06-25 16:08:19,893 INFO ]: Found implementation of procedure gotoProc [2018-06-25 16:08:19,893 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 16:08:19,893 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 16:08:19,893 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 16:08:20,377 INFO ]: Using library mode [2018-06-25 16:08:20,377 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:08:20 BoogieIcfgContainer [2018-06-25 16:08:20,377 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 16:08:20,379 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 16:08:20,379 INFO ]: Initializing TraceAbstraction... [2018-06-25 16:08:20,382 INFO ]: TraceAbstraction initialized [2018-06-25 16:08:20,382 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 04:08:19" (1/3) ... [2018-06-25 16:08:20,383 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598ca163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 04:08:20, skipping insertion in model container [2018-06-25 16:08:20,383 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 04:08:19" (2/3) ... [2018-06-25 16:08:20,383 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598ca163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 04:08:20, skipping insertion in model container [2018-06-25 16:08:20,383 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 04:08:20" (3/3) ... [2018-06-25 16:08:20,387 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 16:08:20,396 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 16:08:20,406 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 16:08:20,451 INFO ]: Using default assertion order modulation [2018-06-25 16:08:20,451 INFO ]: Interprodecural is true [2018-06-25 16:08:20,451 INFO ]: Hoare is false [2018-06-25 16:08:20,451 INFO ]: Compute interpolants for FPandBP [2018-06-25 16:08:20,451 INFO ]: Backedges is TWOTRACK [2018-06-25 16:08:20,451 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 16:08:20,451 INFO ]: Difference is false [2018-06-25 16:08:20,451 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 16:08:20,451 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 16:08:20,464 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 16:08:20,488 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 16:08:20,488 INFO ]: Found error trace [2018-06-25 16:08:20,489 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:08:20,489 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:08:20,494 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-25 16:08:20,496 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:08:20,497 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:08:20,533 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:08:20,533 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:08:20,533 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:08:20,647 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:08:20,821 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:08:20,824 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 16:08:20,824 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 16:08:20,826 INFO ]: Interpolant automaton has 3 states [2018-06-25 16:08:20,838 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 16:08:20,838 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 16:08:20,840 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 16:08:20,919 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:08:20,919 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 16:08:20,921 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 16:08:20,922 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 16:08:20,923 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:08:20,933 INFO ]: With dead ends: 9 [2018-06-25 16:08:20,933 INFO ]: Without dead ends: 9 [2018-06-25 16:08:20,935 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 16:08:20,957 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 16:08:20,982 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 16:08:20,983 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 16:08:20,984 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 16:08:20,985 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 16:08:20,985 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:08:20,985 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 16:08:20,985 INFO ]: Interpolant automaton has 3 states. [2018-06-25 16:08:20,985 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 16:08:20,986 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 16:08:20,986 INFO ]: Found error trace [2018-06-25 16:08:20,986 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:08:20,986 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:08:20,986 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-25 16:08:20,986 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:08:20,986 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:08:20,987 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:08:20,987 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:08:20,987 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:08:21,189 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:08:21,646 WARN ]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-06-25 16:08:21,647 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:08:21,647 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:08:21,647 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) [2018-06-25 16:08:21,663 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 16:08:21,863 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:08:21,877 INFO ]: Computing forward predicates... [2018-06-25 16:08:22,586 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:08:22,590 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:22,596 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:08:22,609 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:22,614 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:08:22,618 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:22,638 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:08:22,643 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:08:22,651 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:08:22,655 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:08:22,657 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:08:22,659 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:22,662 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:08:22,668 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:08:22,675 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:08:22,683 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:22,686 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:08:22,687 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:08:22,695 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:08:22,703 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:22,776 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:22,778 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:08:22,780 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:22,782 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:08:22,785 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:08:23,083 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:08:23,133 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:23,171 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:08:23,240 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:23,246 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:23,282 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:08:23,762 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:08:23,792 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:08:23,928 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:08:23,934 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:08:23,972 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:23,990 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:08:23,994 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:08:24,118 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:08:24,125 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:08:24,134 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:08:24,491 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:08:24,506 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:08:24,520 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:24,535 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:08:24,621 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:24,623 WARN ]: expecting exponential blowup for input size 12 [2018-06-25 16:08:25,576 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:25,578 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:08:25,591 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:08:25,595 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:25,621 WARN ]: expecting exponential blowup for input size 12 [2018-06-25 16:08:25,731 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:25,753 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:08:25,756 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:25,761 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:08:25,779 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:08:25,799 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:08:25,874 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:08:25,877 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:08:59,449 WARN ]: Spent 508.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 11 [2018-06-25 16:08:59,451 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:08:59,525 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 16:08:59,525 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-25 16:08:59,526 INFO ]: Interpolant automaton has 5 states [2018-06-25 16:08:59,526 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-25 16:08:59,526 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 16:08:59,526 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-25 16:08:59,579 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 16:08:59,579 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-25 16:08:59,580 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 16:08:59,580 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-25 16:08:59,580 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 16:08:59,580 INFO ]: With dead ends: 10 [2018-06-25 16:08:59,580 INFO ]: Without dead ends: 10 [2018-06-25 16:08:59,581 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 16:08:59,581 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-25 16:08:59,582 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-25 16:08:59,582 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-25 16:08:59,583 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-25 16:08:59,583 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-25 16:08:59,583 INFO ]: Finished accepts. word is rejected. [2018-06-25 16:08:59,583 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-25 16:08:59,583 INFO ]: Interpolant automaton has 5 states. [2018-06-25 16:08:59,583 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-25 16:08:59,583 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 16:08:59,583 INFO ]: Found error trace [2018-06-25 16:08:59,583 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 16:08:59,584 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 16:08:59,584 INFO ]: Analyzing trace with hash -2043975570, now seen corresponding path program 2 times [2018-06-25 16:08:59,584 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 16:08:59,584 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 16:08:59,585 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:08:59,585 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 16:08:59,585 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 16:08:59,742 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:09:00,241 WARN ]: Spent 321.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 21 [2018-06-25 16:09:00,248 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 16:09:00,248 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 16:09:00,248 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 16:09:00,257 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 16:09:00,402 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 16:09:00,402 INFO ]: Conjunction of SSA is unsat [2018-06-25 16:09:00,409 INFO ]: Computing forward predicates... [2018-06-25 16:09:01,771 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,771 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,772 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,773 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,773 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,775 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,776 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:01,778 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:01,779 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,784 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:01,789 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,789 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,791 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:01,794 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:01,797 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:01,799 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:01,805 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,806 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:01,807 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:01,811 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,813 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,822 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,823 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,823 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,824 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,825 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,825 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,827 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:01,830 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:09:01,833 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:09:01,838 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,838 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:01,839 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,842 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:01,847 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:01,848 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,849 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:01,852 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,853 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:01,857 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:09:01,864 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:01,865 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:01,879 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:01,935 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:01,939 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:01,943 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:09:02,133 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:09:02,265 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:09:02,411 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:02,413 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:02,417 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:02,419 WARN ]: expecting exponential blowup for input size 15 [2018-06-25 16:09:03,327 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:03,327 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:03,328 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:03,329 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:03,465 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:09:03,478 WARN ]: expecting exponential blowup for input size 13 [2018-06-25 16:09:03,563 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:03,564 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:09:03,572 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:03,573 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:03,576 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:03,577 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:03,585 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:03,586 WARN ]: expecting exponential blowup for input size 14 [2018-06-25 16:09:03,870 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:03,870 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:03,871 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:03,872 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:03,873 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:03,877 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:03,878 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:03,880 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:03,881 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:09:03,883 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:03,884 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:03,885 WARN ]: expecting exponential blowup for input size 15 [2018-06-25 16:09:04,344 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:09:04,347 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:09:04,430 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:04,431 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:04,431 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:09:04,504 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:04,504 WARN ]: expecting exponential blowup for input size 13 [2018-06-25 16:09:05,490 WARN ]: expecting exponential blowup for input size 13 [2018-06-25 16:09:06,404 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:09:06,408 WARN ]: expecting exponential blowup for input size 10 [2018-06-25 16:09:06,422 WARN ]: expecting exponential blowup for input size 12 [2018-06-25 16:09:06,577 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:07,293 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:07,293 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:07,293 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:07,295 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:07,296 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:07,301 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:09:07,306 WARN ]: expecting exponential blowup for input size 13 [2018-06-25 16:09:07,365 WARN ]: expecting exponential blowup for input size 13 [2018-06-25 16:09:07,473 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:07,474 WARN ]: expecting exponential blowup for input size 13 [2018-06-25 16:09:07,632 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:07,633 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:07,634 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:07,643 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:07,644 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 16:09:07,660 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:07,661 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:07,662 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:07,663 WARN ]: expecting exponential blowup for input size 12 [2018-06-25 16:09:07,728 WARN ]: Simplifying disjunction of 12844 conjuctions. This might take some time... [2018-06-25 16:09:16,598 INFO ]: Simplified to disjunction of 12844 conjuctions. [2018-06-25 16:09:16,654 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:16,655 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:16,656 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:16,656 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:16,657 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:16,658 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:16,658 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:16,659 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:09:16,664 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:16,668 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:16,669 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:16,671 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:16,672 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:16,674 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:09:16,676 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:16,677 WARN ]: expecting exponential blowup for input size 9 [2018-06-25 16:09:16,680 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:16,681 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:16,681 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 16:09:16,682 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:16,684 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:16,684 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:16,689 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:16,692 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:16,697 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 16:09:16,699 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:16,701 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 16:09:16,703 WARN ]: expecting exponential blowup for input size 20 [2018-06-25 16:09:17,691 WARN ]: Simplifying disjunction of 52488 conjuctions. This might take some time... Received shutdown request... [2018-06-25 16:09:27,573 INFO ]: Timeout while computing interpolants [2018-06-25 16:09:27,773 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 16:09:27,774 WARN ]: Verification canceled [2018-06-25 16:09:27,779 WARN ]: Timeout [2018-06-25 16:09:27,779 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 04:09:27 BoogieIcfgContainer [2018-06-25 16:09:27,779 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 16:09:27,780 INFO ]: Toolchain (without parser) took 68094.33 ms. Allocated memory was 307.2 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 240.6 MB in the beginning and 955.5 MB in the end (delta: -714.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-25 16:09:27,785 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 16:09:27,785 INFO ]: ChcToBoogie took 81.25 ms. Allocated memory is still 307.2 MB. Free memory was 239.6 MB in the beginning and 236.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:09:27,785 INFO ]: Boogie Preprocessor took 84.18 ms. Allocated memory is still 307.2 MB. Free memory was 236.6 MB in the beginning and 234.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:09:27,786 INFO ]: RCFGBuilder took 507.57 ms. Allocated memory is still 307.2 MB. Free memory was 234.6 MB in the beginning and 193.6 MB in the end (delta: 41.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 3.6 GB. [2018-06-25 16:09:27,786 INFO ]: TraceAbstraction took 67400.62 ms. Allocated memory was 307.2 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 193.6 MB in the beginning and 955.5 MB in the end (delta: -761.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-25 16:09:27,798 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 307.2 MB. Free memory is still 272.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 81.25 ms. Allocated memory is still 307.2 MB. Free memory was 239.6 MB in the beginning and 236.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 84.18 ms. Allocated memory is still 307.2 MB. Free memory was 236.6 MB in the beginning and 234.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 507.57 ms. Allocated memory is still 307.2 MB. Free memory was 234.6 MB in the beginning and 193.6 MB in the end (delta: 41.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 67400.62 ms. Allocated memory was 307.2 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 193.6 MB in the beginning and 955.5 MB in the end (delta: -761.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 10 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 52488 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 67.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 20 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 38.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 364 SizeOfPredicates, 3 NumberOfNonLiveVariables, 710 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ILLINOIS_4_e7_2651_e7_2847.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_16-09-27-809.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ILLINOIS_4_e7_2651_e7_2847.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_16-09-27-809.csv Completed graceful shutdown