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/peterson_4.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 19:37:20,757 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 19:37:20,760 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 19:37:20,774 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 19:37:20,774 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 19:37:20,775 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 19:37:20,778 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 19:37:20,780 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 19:37:20,781 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 19:37:20,782 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 19:37:20,783 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 19:37:20,783 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 19:37:20,784 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 19:37:20,785 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 19:37:20,786 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 19:37:20,789 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 19:37:20,790 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 19:37:20,799 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 19:37:20,801 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 19:37:20,802 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 19:37:20,803 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 19:37:20,808 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 19:37:20,808 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 19:37:20,808 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 19:37:20,809 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 19:37:20,810 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 19:37:20,810 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 19:37:20,813 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 19:37:20,813 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 19:37:20,814 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 19:37:20,814 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 19:37:20,815 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 19:37:20,815 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 19:37:20,815 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 19:37:20,819 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 19:37:20,820 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 19:37:20,838 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 19:37:20,838 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 19:37:20,838 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 19:37:20,838 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 19:37:20,839 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 19:37:20,839 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 19:37:20,840 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 19:37:20,843 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 19:37:20,843 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 19:37:20,843 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 19:37:20,843 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 19:37:20,843 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 19:37:20,843 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 19:37:20,844 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 19:37:20,844 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 19:37:20,844 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 19:37:20,844 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 19:37:20,844 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 19:37:20,844 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 19:37:20,846 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 19:37:20,847 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 19:37:20,893 INFO ]: Repository-Root is: /tmp [2018-06-22 19:37:20,908 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 19:37:20,912 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 19:37:20,914 INFO ]: Initializing SmtParser... [2018-06-22 19:37:20,914 INFO ]: SmtParser initialized [2018-06-22 19:37:20,915 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/peterson_4.smt2 [2018-06-22 19:37:20,916 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 19:37:21,003 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/peterson_4.smt2 unknown [2018-06-22 19:37:21,676 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/peterson_4.smt2 [2018-06-22 19:37:21,680 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 19:37:21,685 INFO ]: Walking toolchain with 4 elements. [2018-06-22 19:37:21,685 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 19:37:21,685 INFO ]: Initializing ChcToBoogie... [2018-06-22 19:37:21,686 INFO ]: ChcToBoogie initialized [2018-06-22 19:37:21,689 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 07:37:21" (1/1) ... [2018-06-22 19:37:21,818 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:37:21 Unit [2018-06-22 19:37:21,818 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 19:37:21,818 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 19:37:21,818 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 19:37:21,818 INFO ]: Boogie Preprocessor initialized [2018-06-22 19:37:21,848 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:37:21" (1/1) ... [2018-06-22 19:37:21,848 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:37:21" (1/1) ... [2018-06-22 19:37:21,872 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:37:21" (1/1) ... [2018-06-22 19:37:21,872 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:37:21" (1/1) ... [2018-06-22 19:37:21,893 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:37:21" (1/1) ... [2018-06-22 19:37:21,895 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:37:21" (1/1) ... [2018-06-22 19:37:21,908 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:37:21" (1/1) ... [2018-06-22 19:37:21,921 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 19:37:21,921 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 19:37:21,921 INFO ]: Initializing RCFGBuilder... [2018-06-22 19:37:21,921 INFO ]: RCFGBuilder initialized [2018-06-22 19:37:21,922 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:37:21" (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 19:37:21,935 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 19:37:21,935 INFO ]: Found specification of procedure False [2018-06-22 19:37:21,935 INFO ]: Found implementation of procedure False [2018-06-22 19:37:21,935 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 19:37:21,935 INFO ]: Found specification of procedure state [2018-06-22 19:37:21,935 INFO ]: Found implementation of procedure state [2018-06-22 19:37:21,935 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 19:37:21,935 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 19:37:21,935 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 19:37:22,512 INFO ]: Using library mode [2018-06-22 19:37:22,512 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:37:22 BoogieIcfgContainer [2018-06-22 19:37:22,512 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 19:37:22,515 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 19:37:22,515 INFO ]: Initializing TraceAbstraction... [2018-06-22 19:37:22,521 INFO ]: TraceAbstraction initialized [2018-06-22 19:37:22,521 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 07:37:21" (1/3) ... [2018-06-22 19:37:22,522 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2613bd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 07:37:22, skipping insertion in model container [2018-06-22 19:37:22,522 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:37:21" (2/3) ... [2018-06-22 19:37:22,522 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2613bd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:37:22, skipping insertion in model container [2018-06-22 19:37:22,522 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:37:22" (3/3) ... [2018-06-22 19:37:22,524 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 19:37:22,534 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 19:37:22,544 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 19:37:22,592 INFO ]: Using default assertion order modulation [2018-06-22 19:37:22,592 INFO ]: Interprodecural is true [2018-06-22 19:37:22,592 INFO ]: Hoare is false [2018-06-22 19:37:22,592 INFO ]: Compute interpolants for FPandBP [2018-06-22 19:37:22,592 INFO ]: Backedges is TWOTRACK [2018-06-22 19:37:22,592 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 19:37:22,592 INFO ]: Difference is false [2018-06-22 19:37:22,592 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 19:37:22,593 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 19:37:22,609 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 19:37:22,623 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 19:37:22,623 INFO ]: Found error trace [2018-06-22 19:37:22,624 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:37:22,624 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:37:22,629 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 19:37:22,631 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:37:22,631 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:37:22,682 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:37:22,682 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:37:22,682 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:37:22,842 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:37:23,173 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 19:37:23,175 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 19:37:23,176 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 19:37:23,177 INFO ]: Interpolant automaton has 4 states [2018-06-22 19:37:23,192 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 19:37:23,193 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 19:37:23,195 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 19:37:23,359 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:37:23,360 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 19:37:23,361 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 19:37:23,362 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 19:37:23,363 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:37:23,377 INFO ]: With dead ends: 13 [2018-06-22 19:37:23,377 INFO ]: Without dead ends: 13 [2018-06-22 19:37:23,380 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 19:37:23,399 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 19:37:23,433 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 19:37:23,434 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 19:37:23,435 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 19:37:23,436 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 19:37:23,437 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:37:23,437 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 19:37:23,437 INFO ]: Interpolant automaton has 4 states. [2018-06-22 19:37:23,437 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 19:37:23,438 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 19:37:23,438 INFO ]: Found error trace [2018-06-22 19:37:23,438 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:37:23,438 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:37:23,438 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 19:37:23,438 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:37:23,438 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:37:23,439 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:37:23,439 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:37:23,439 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:37:23,581 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:37:24,299 WARN ]: Spent 409.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 17 [2018-06-22 19:37:24,448 WARN ]: Spent 110.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 1 [2018-06-22 19:37:24,450 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 19:37:24,450 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:37:24,450 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 19:37:24,467 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 19:37:24,698 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:37:24,715 INFO ]: Computing forward predicates... Received shutdown request... [2018-06-22 19:38:31,212 INFO ]: Timeout while computing interpolants [2018-06-22 19:38:31,414 WARN ]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 19:38:31,414 WARN ]: Verification canceled [2018-06-22 19:38:31,432 WARN ]: Timeout [2018-06-22 19:38:31,432 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:38:31 BoogieIcfgContainer [2018-06-22 19:38:31,432 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 19:38:31,433 INFO ]: Toolchain (without parser) took 69752.92 ms. Allocated memory was 308.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 223.2 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 19:38:31,434 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 19:38:31,435 INFO ]: ChcToBoogie took 132.55 ms. Allocated memory is still 308.8 MB. Free memory was 223.2 MB in the beginning and 220.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. [2018-06-22 19:38:31,435 INFO ]: Boogie Preprocessor took 102.34 ms. Allocated memory is still 308.8 MB. Free memory was 220.2 MB in the beginning and 217.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 19:38:31,436 INFO ]: RCFGBuilder took 591.30 ms. Allocated memory was 308.8 MB in the beginning and 330.3 MB in the end (delta: 21.5 MB). Free memory was 217.2 MB in the beginning and 276.3 MB in the end (delta: -59.1 MB). Peak memory consumption was 34.9 MB. Max. memory is 3.6 GB. [2018-06-22 19:38:31,445 INFO ]: TraceAbstraction took 68917.26 ms. Allocated memory was 330.3 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 276.3 MB in the beginning and 1.3 GB in the end (delta: -987.3 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-22 19:38:31,448 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 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 132.55 ms. Allocated memory is still 308.8 MB. Free memory was 223.2 MB in the beginning and 220.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 102.34 ms. Allocated memory is still 308.8 MB. Free memory was 220.2 MB in the beginning and 217.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 591.30 ms. Allocated memory was 308.8 MB in the beginning and 330.3 MB in the end (delta: 21.5 MB). Free memory was 217.2 MB in the beginning and 276.3 MB in the end (delta: -59.1 MB). Peak memory consumption was 34.9 MB. Max. memory is 3.6 GB. * TraceAbstraction took 68917.26 ms. Allocated memory was 330.3 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 276.3 MB in the beginning and 1.3 GB in the end (delta: -987.3 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 14 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 22 quantified variables from 25 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 68.8s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 1 SDslu, 15 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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/peterson_4.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_19-38-31-477.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/peterson_4.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_19-38-31-477.csv Completed graceful shutdown