java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/count_by_nondet.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 13:54:00,932 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 13:54:00,934 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 13:54:00,948 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 13:54:00,949 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 13:54:00,950 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 13:54:00,951 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 13:54:00,953 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 13:54:00,955 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 13:54:00,956 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 13:54:00,957 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 13:54:00,957 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 13:54:00,958 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 13:54:00,959 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 13:54:00,960 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 13:54:00,961 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 13:54:00,962 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 13:54:00,964 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 13:54:00,966 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 13:54:00,968 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 13:54:00,969 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 13:54:00,970 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 13:54:00,973 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 13:54:00,973 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 13:54:00,973 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 13:54:00,974 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 13:54:00,976 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 13:54:00,976 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 13:54:00,977 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 13:54:00,979 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 13:54:00,979 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 13:54:00,980 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 13:54:00,980 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 13:54:00,980 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 13:54:00,981 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 13:54:00,982 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 13:54:00,983 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-07-25 13:54:00,992 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 13:54:00,993 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 13:54:00,994 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 13:54:00,997 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 13:54:00,998 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 13:54:00,998 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:54:00,998 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 13:54:01,045 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 13:54:01,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 13:54:01,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 13:54:01,068 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 13:54:01,069 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 13:54:01,070 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/count_by_nondet.i_3.bpl [2018-07-25 13:54:01,070 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/count_by_nondet.i_3.bpl' [2018-07-25 13:54:01,117 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 13:54:01,119 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 13:54:01,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 13:54:01,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 13:54:01,120 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 13:54:01,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:01" (1/1) ... [2018-07-25 13:54:01,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:01" (1/1) ... [2018-07-25 13:54:01,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 13:54:01,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 13:54:01,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 13:54:01,163 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 13:54:01,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:01" (1/1) ... [2018-07-25 13:54:01,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:01" (1/1) ... [2018-07-25 13:54:01,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:01" (1/1) ... [2018-07-25 13:54:01,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:01" (1/1) ... [2018-07-25 13:54:01,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:01" (1/1) ... [2018-07-25 13:54:01,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:01" (1/1) ... [2018-07-25 13:54:01,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:01" (1/1) ... [2018-07-25 13:54:01,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 13:54:01,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 13:54:01,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 13:54:01,183 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 13:54:01,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:01" (1/1) ... No working directory specified, using /storage/repos/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 [2018-07-25 13:54:01,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 13:54:01,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 13:54:01,523 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 13:54:01,524 INFO L202 PluginConnector]: Adding new model count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:54:01 BoogieIcfgContainer [2018-07-25 13:54:01,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 13:54:01,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 13:54:01,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 13:54:01,529 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 13:54:01,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:54:01" (1/2) ... [2018-07-25 13:54:01,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c7ebb2 and model type count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 01:54:01, skipping insertion in model container [2018-07-25 13:54:01,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_by_nondet.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:54:01" (2/2) ... [2018-07-25 13:54:01,533 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_nondet.i_3.bpl [2018-07-25 13:54:01,542 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 13:54:01,550 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 13:54:01,599 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 13:54:01,600 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 13:54:01,600 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 13:54:01,600 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 13:54:01,600 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 13:54:01,600 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 13:54:01,601 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 13:54:01,601 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 13:54:01,601 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 13:54:01,616 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 13:54:01,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 13:54:01,625 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:54:01,626 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 13:54:01,627 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:54:01,633 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:54:01,658 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:54:01,934 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:54:01,935 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:54:01,938 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:54:01,943 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:54:01,944 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 13:54:01,946 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-25 13:54:01,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:54:01,984 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-25 13:54:01,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:54:01,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-25 13:54:01,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:54:02,007 INFO L225 Difference]: With dead ends: 10 [2018-07-25 13:54:02,007 INFO L226 Difference]: Without dead ends: 7 [2018-07-25 13:54:02,011 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 13:54:02,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-25 13:54:02,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-25 13:54:02,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 13:54:02,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-25 13:54:02,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-25 13:54:02,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:54:02,049 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-25 13:54:02,049 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:54:02,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-25 13:54:02,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 13:54:02,050 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:54:02,050 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 13:54:02,050 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:54:02,051 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:54:02,061 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:54:02,747 WARN L169 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 21 [2018-07-25 13:54:03,214 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 26 [2018-07-25 13:54:03,528 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-07-25 13:54:03,919 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-07-25 13:54:04,166 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2018-07-25 13:54:04,901 WARN L169 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-07-25 13:54:05,526 WARN L169 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2018-07-25 13:54:05,807 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-07-25 13:54:06,667 WARN L169 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2018-07-25 13:54:08,918 WARN L169 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2018-07-25 13:54:13,362 WARN L169 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2018-07-25 13:54:21,394 WARN L169 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 198 [2018-07-25 13:54:24,386 WARN L169 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2018-07-25 13:54:38,446 WARN L169 SmtUtils]: Spent 3.99 s on a formula simplification that was a NOOP. DAG size: 229 [2018-07-25 13:55:28,613 WARN L169 SmtUtils]: Spent 23.35 s on a formula simplification that was a NOOP. DAG size: 262 [2018-07-25 13:56:14,482 WARN L169 SmtUtils]: Spent 8.54 s on a formula simplification that was a NOOP. DAG size: 297 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown