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/eldarica-misc/LIA/llreve/while_after_while_if_safe.c-1.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 09:02:03,809 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 09:02:03,811 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 09:02:03,821 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 09:02:03,822 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 09:02:03,823 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 09:02:03,825 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 09:02:03,829 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 09:02:03,830 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 09:02:03,832 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 09:02:03,833 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 09:02:03,833 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 09:02:03,834 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 09:02:03,835 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 09:02:03,837 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 09:02:03,838 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 09:02:03,839 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 09:02:03,841 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 09:02:03,843 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 09:02:03,844 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 09:02:03,845 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 09:02:03,847 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 09:02:03,847 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 09:02:03,847 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 09:02:03,848 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 09:02:03,849 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 09:02:03,850 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 09:02:03,850 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 09:02:03,852 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 09:02:03,852 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 09:02:03,852 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 09:02:03,853 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 09:02:03,853 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 09:02:03,854 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 09:02:03,855 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 09:02:03,855 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 09:02:03,869 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 09:02:03,870 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 09:02:03,870 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 09:02:03,870 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 09:02:03,871 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 09:02:03,871 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 09:02:03,872 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 09:02:03,872 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 09:02:03,872 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 09:02:03,872 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 09:02:03,873 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 09:02:03,873 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 09:02:03,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 09:02:03,873 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 09:02:03,873 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 09:02:03,874 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 09:02:03,874 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 09:02:03,874 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 09:02:03,874 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 09:02:03,874 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 09:02:03,875 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 09:02:03,876 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 09:02:03,876 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 09:02:03,921 INFO ]: Repository-Root is: /tmp [2018-06-25 09:02:03,934 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 09:02:03,937 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 09:02:03,941 INFO ]: Initializing SmtParser... [2018-06-25 09:02:03,941 INFO ]: SmtParser initialized [2018-06-25 09:02:03,942 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/llreve/while_after_while_if_safe.c-1.smt2 [2018-06-25 09:02:03,943 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 09:02:04,033 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/llreve/while_after_while_if_safe.c-1.smt2 unknown [2018-06-25 09:02:04,283 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/llreve/while_after_while_if_safe.c-1.smt2 [2018-06-25 09:02:04,287 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 09:02:04,298 INFO ]: Walking toolchain with 4 elements. [2018-06-25 09:02:04,298 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 09:02:04,298 INFO ]: Initializing ChcToBoogie... [2018-06-25 09:02:04,298 INFO ]: ChcToBoogie initialized [2018-06-25 09:02:04,302 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:02:04" (1/1) ... [2018-06-25 09:02:04,365 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:02:04 Unit [2018-06-25 09:02:04,365 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 09:02:04,366 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 09:02:04,366 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 09:02:04,366 INFO ]: Boogie Preprocessor initialized [2018-06-25 09:02:04,387 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:02:04" (1/1) ... [2018-06-25 09:02:04,387 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:02:04" (1/1) ... [2018-06-25 09:02:04,394 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:02:04" (1/1) ... [2018-06-25 09:02:04,394 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:02:04" (1/1) ... [2018-06-25 09:02:04,399 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:02:04" (1/1) ... [2018-06-25 09:02:04,408 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:02:04" (1/1) ... [2018-06-25 09:02:04,410 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:02:04" (1/1) ... [2018-06-25 09:02:04,411 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 09:02:04,412 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 09:02:04,412 INFO ]: Initializing RCFGBuilder... [2018-06-25 09:02:04,412 INFO ]: RCFGBuilder initialized [2018-06-25 09:02:04,421 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:02:04" (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) [2018-06-25 09:02:04,436 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 09:02:04,436 INFO ]: Found specification of procedure gotoProc [2018-06-25 09:02:04,437 INFO ]: Found implementation of procedure gotoProc [2018-06-25 09:02:04,437 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 09:02:04,437 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 09:02:04,437 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 [2018-06-25 09:02:04,814 INFO ]: Using library mode [2018-06-25 09:02:04,815 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:02:04 BoogieIcfgContainer [2018-06-25 09:02:04,815 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 09:02:04,816 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 09:02:04,816 INFO ]: Initializing TraceAbstraction... [2018-06-25 09:02:04,819 INFO ]: TraceAbstraction initialized [2018-06-25 09:02:04,819 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:02:04" (1/3) ... [2018-06-25 09:02:04,821 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7932a1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 09:02:04, skipping insertion in model container [2018-06-25 09:02:04,821 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:02:04" (2/3) ... [2018-06-25 09:02:04,821 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7932a1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 09:02:04, skipping insertion in model container [2018-06-25 09:02:04,821 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:02:04" (3/3) ... [2018-06-25 09:02:04,823 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 09:02:04,830 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 09:02:04,839 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 09:02:04,879 INFO ]: Using default assertion order modulation [2018-06-25 09:02:04,880 INFO ]: Interprodecural is true [2018-06-25 09:02:04,880 INFO ]: Hoare is false [2018-06-25 09:02:04,880 INFO ]: Compute interpolants for FPandBP [2018-06-25 09:02:04,880 INFO ]: Backedges is TWOTRACK [2018-06-25 09:02:04,880 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 09:02:04,880 INFO ]: Difference is false [2018-06-25 09:02:04,880 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 09:02:04,880 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 09:02:04,893 INFO ]: Start isEmpty. Operand 15 states. [2018-06-25 09:02:04,906 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-25 09:02:04,906 INFO ]: Found error trace [2018-06-25 09:02:04,907 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:02:04,907 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:02:04,912 INFO ]: Analyzing trace with hash 1442409604, now seen corresponding path program 1 times [2018-06-25 09:02:04,915 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:02:04,915 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:02:04,950 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:02:04,950 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:02:04,950 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:02:05,011 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:02:05,166 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:02:05,170 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:02:05,170 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-25 09:02:05,172 INFO ]: Interpolant automaton has 6 states [2018-06-25 09:02:05,188 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 09:02:05,189 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-25 09:02:05,192 INFO ]: Start difference. First operand 15 states. Second operand 6 states. [2018-06-25 09:02:05,489 WARN ]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-06-25 09:02:05,563 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:02:05,563 INFO ]: Finished difference Result 31 states and 51 transitions. [2018-06-25 09:02:05,564 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-25 09:02:05,564 INFO ]: Start accepts. Automaton has 6 states. Word has length 11 [2018-06-25 09:02:05,565 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:02:05,575 INFO ]: With dead ends: 31 [2018-06-25 09:02:05,575 INFO ]: Without dead ends: 31 [2018-06-25 09:02:05,577 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-06-25 09:02:05,593 INFO ]: Start minimizeSevpa. Operand 31 states. [2018-06-25 09:02:05,620 INFO ]: Finished minimizeSevpa. Reduced states from 31 to 16. [2018-06-25 09:02:05,622 INFO ]: Start removeUnreachable. Operand 16 states. [2018-06-25 09:02:05,622 INFO ]: Finished removeUnreachable. Reduced from 16 states to 16 states and 27 transitions. [2018-06-25 09:02:05,624 INFO ]: Start accepts. Automaton has 16 states and 27 transitions. Word has length 11 [2018-06-25 09:02:05,624 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:02:05,624 INFO ]: Abstraction has 16 states and 27 transitions. [2018-06-25 09:02:05,624 INFO ]: Interpolant automaton has 6 states. [2018-06-25 09:02:05,624 INFO ]: Start isEmpty. Operand 16 states and 27 transitions. [2018-06-25 09:02:05,624 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-25 09:02:05,624 INFO ]: Found error trace [2018-06-25 09:02:05,624 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:02:05,626 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:02:05,626 INFO ]: Analyzing trace with hash 1943584514, now seen corresponding path program 1 times [2018-06-25 09:02:05,626 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:02:05,626 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:02:05,627 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:02:05,627 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:02:05,627 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:02:05,670 INFO ]: Conjunction of SSA is sat [2018-06-25 09:02:05,675 INFO ]: Counterexample might be feasible [2018-06-25 09:02:05,691 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 09:02:05 BoogieIcfgContainer [2018-06-25 09:02:05,691 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 09:02:05,692 INFO ]: Toolchain (without parser) took 1404.04 ms. Allocated memory is still 307.8 MB. Free memory was 261.1 MB in the beginning and 214.1 MB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:02:05,693 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 307.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:02:05,693 INFO ]: ChcToBoogie took 67.50 ms. Allocated memory is still 307.8 MB. Free memory was 261.1 MB in the beginning and 258.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:02:05,693 INFO ]: Boogie Preprocessor took 45.44 ms. Allocated memory is still 307.8 MB. Free memory was 258.1 MB in the beginning and 257.1 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-25 09:02:05,696 INFO ]: RCFGBuilder took 402.77 ms. Allocated memory is still 307.8 MB. Free memory was 257.1 MB in the beginning and 244.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:02:05,696 INFO ]: TraceAbstraction took 875.16 ms. Allocated memory is still 307.8 MB. Free memory was 243.1 MB in the beginning and 214.1 MB in the end (delta: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:02:05,703 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 307.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 67.50 ms. Allocated memory is still 307.8 MB. Free memory was 261.1 MB in the beginning and 258.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 45.44 ms. Allocated memory is still 307.8 MB. Free memory was 258.1 MB in the beginning and 257.1 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 402.77 ms. Allocated memory is still 307.8 MB. Free memory was 257.1 MB in the beginning and 244.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 875.16 ms. Allocated memory is still 307.8 MB. Free memory was 243.1 MB in the beginning and 214.1 MB in the end (delta: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] gotoSwitch := gotoSwitch_in; [L0] assume !(hbv_False_1_Int == hbv_False_2_Int); [L0] hhv_inv_main42_0_Int, hhv_inv_main42_1_Int, hhv_inv_main42_2_Int, hhv_inv_main42_3_Int, hhv_inv_main42_4_Int := hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_1_Int, hbv_False_2_Int; [L0] havoc hbv_False_2_Int, hbv_False_1_Int, hbv_False_5_Int, hbv_False_3_Int, hbv_False_4_Int; [L0] assume !(!(hbv_inv_main42_1_Int == 0) && 0 <= hbv_inv_main42_2_Int + -1); [L0] hhv_inv_main27_0_Int, hhv_inv_main27_1_Int, hhv_inv_main27_2_Int, hhv_inv_main27_3_Int, hhv_inv_main27_4_Int, hhv_inv_main27_5_Int, hhv_inv_main27_6_Int, hhv_inv_main27_7_Int := hhv_inv_main42_0_Int, hhv_inv_main42_1_Int, hhv_inv_main42_2_Int, hhv_inv_main42_3_Int, hbv_inv_main42_3_Int, hbv_inv_main42_4_Int, hbv_inv_main42_2_Int, hhv_inv_main42_4_Int; [L0] havoc hbv_inv_main42_1_Int, hbv_inv_main42_4_Int, hbv_inv_main42_3_Int, hbv_inv_main42_2_Int; [L0] assume ((hhv_inv_main27_6_Int == hbv_inv_main27_3_Int + -1 && 0 <= hbv_inv_main27_3_Int + -1) && !(hbv_inv_main27_2_Int == 0)) && hhv_inv_main27_7_Int == hbv_inv_main27_1_Int + 2; [L0] hhv_inv_main27_0_Int, hhv_inv_main27_1_Int, hhv_inv_main27_2_Int, hhv_inv_main27_3_Int, hhv_inv_main27_4_Int, hhv_inv_main27_5_Int, hhv_inv_main27_6_Int, hhv_inv_main27_7_Int := hhv_inv_main27_0_Int, hhv_inv_main27_1_Int, hhv_inv_main27_2_Int, hhv_inv_main27_3_Int, hhv_inv_main27_4_Int, hhv_inv_main27_5_Int, hbv_inv_main27_3_Int, hbv_inv_main27_1_Int; [L0] havoc hbv_inv_main27_1_Int, hbv_inv_main27_2_Int, hbv_inv_main27_3_Int; [L0] assume hbv_inv_main27_1_Int == 0; [L0] hhv_inv_main26_0_Int, hhv_inv_main26_1_Int, hhv_inv_main26_2_Int, hhv_inv_main26_3_Int, hhv_inv_main26_4_Int, hhv_inv_main26_5_Int, hhv_inv_main26_6_Int, hhv_inv_main26_7_Int := hhv_inv_main27_0_Int, hhv_inv_main27_1_Int, hhv_inv_main27_2_Int, hhv_inv_main27_3_Int, hhv_inv_main27_4_Int, hhv_inv_main27_5_Int, hhv_inv_main27_6_Int, hhv_inv_main27_7_Int; [L0] havoc hbv_inv_main27_1_Int; [L0] assume (((hhv_inv_main26_5_Int == hhv_inv_main26_1_Int && hhv_inv_main26_6_Int == hhv_inv_main26_2_Int) && hhv_inv_main26_7_Int == 0) && !(!(hbv_inv_main26_1_Int == 0) && 0 <= hbv_inv_main26_2_Int + -1)) && hhv_inv_main26_4_Int == hhv_inv_main26_0_Int; [L0] hhv_inv_main8_0_Int, hhv_inv_main8_1_Int, hhv_inv_main8_2_Int, hhv_inv_main8_3_Int, hhv_inv_main8_4_Int, hhv_inv_main8_5_Int, hhv_inv_main8_6_Int := hhv_inv_main26_0_Int, hhv_inv_main26_1_Int, hhv_inv_main26_2_Int, hbv_inv_main26_3_Int, hbv_inv_main26_4_Int, hbv_inv_main26_2_Int, hhv_inv_main26_3_Int; [L0] havoc hbv_inv_main26_2_Int, hbv_inv_main26_4_Int, hbv_inv_main26_3_Int, hbv_inv_main26_1_Int; [L0] assume (((hhv_inv_main8_3_Int == hhv_inv_main8_0_Int && hhv_inv_main8_5_Int == hhv_inv_main8_2_Int) && !(0 <= hhv_inv_main8_0_Int + -1)) && hhv_inv_main8_6_Int == 0) && hhv_inv_main8_4_Int == hhv_inv_main8_1_Int; [L0] hhv_inv_main3_0_Int, hhv_inv_main3_1_Int, hhv_inv_main3_2_Int := hhv_inv_main8_0_Int, hhv_inv_main8_1_Int, hhv_inv_main8_2_Int; [L0] assume true; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 59 SDslu, 59 SDs, 0 SdLazy, 34 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=1, 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, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 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 proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/while_after_while_if_safe.c-1.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_09-02-05-719.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/while_after_while_if_safe.c-1.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_09-02-05-719.csv Received shutdown request...