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/toy/tooDifficultLoopInvariant/Sandman01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 14:25:05,698 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 14:25:05,700 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 14:25:05,717 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 14:25:05,717 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 14:25:05,718 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 14:25:05,720 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 14:25:05,722 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 14:25:05,724 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 14:25:05,724 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 14:25:05,725 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 14:25:05,725 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 14:25:05,726 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 14:25:05,727 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 14:25:05,728 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 14:25:05,729 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 14:25:05,730 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 14:25:05,732 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 14:25:05,734 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 14:25:05,735 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 14:25:05,736 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 14:25:05,738 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 14:25:05,740 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 14:25:05,740 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 14:25:05,741 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 14:25:05,742 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 14:25:05,743 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 14:25:05,743 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 14:25:05,744 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 14:25:05,745 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 14:25:05,746 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 14:25:05,746 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-25 14:25:05,749 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 14:25:05,758 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 14:25:05,759 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 14:25:05,760 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 14:25:05,760 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 14:25:05,760 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 14:25:05,761 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:25:05,761 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 14:25:05,819 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 14:25:05,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 14:25:05,845 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 14:25:05,846 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 14:25:05,847 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 14:25:05,848 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Sandman01.bpl [2018-07-25 14:25:05,848 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Sandman01.bpl' [2018-07-25 14:25:05,885 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 14:25:05,887 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 14:25:05,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 14:25:05,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 14:25:05,888 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 14:25:05,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:05" (1/1) ... [2018-07-25 14:25:05,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:05" (1/1) ... [2018-07-25 14:25:05,928 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 14:25:05,928 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 14:25:05,929 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 14:25:05,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 14:25:05,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 14:25:05,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 14:25:05,932 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 14:25:05,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:05" (1/1) ... [2018-07-25 14:25:05,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:05" (1/1) ... [2018-07-25 14:25:05,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:05" (1/1) ... [2018-07-25 14:25:05,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:05" (1/1) ... [2018-07-25 14:25:05,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:05" (1/1) ... [2018-07-25 14:25:05,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:05" (1/1) ... [2018-07-25 14:25:05,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:05" (1/1) ... [2018-07-25 14:25:05,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 14:25:05,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 14:25:05,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 14:25:05,961 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 14:25:05,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:05" (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 14:25:06,040 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-25 14:25:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-25 14:25:06,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-25 14:25:06,265 INFO L270 CfgBuilder]: Using library mode [2018-07-25 14:25:06,266 INFO L202 PluginConnector]: Adding new model Sandman01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:25:06 BoogieIcfgContainer [2018-07-25 14:25:06,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 14:25:06,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 14:25:06,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 14:25:06,271 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 14:25:06,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:25:05" (1/2) ... [2018-07-25 14:25:06,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f74b78c and model type Sandman01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 02:25:06, skipping insertion in model container [2018-07-25 14:25:06,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Sandman01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:25:06" (2/2) ... [2018-07-25 14:25:06,275 INFO L112 eAbstractionObserver]: Analyzing ICFG Sandman01.bpl [2018-07-25 14:25:06,285 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 14:25:06,293 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 14:25:06,342 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 14:25:06,343 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 14:25:06,343 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 14:25:06,343 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 14:25:06,343 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 14:25:06,343 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 14:25:06,344 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 14:25:06,344 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 14:25:06,344 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 14:25:06,359 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 14:25:06,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-25 14:25:06,368 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:25:06,369 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-25 14:25:06,370 INFO L415 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:25:06,376 INFO L82 PathProgramCache]: Analyzing trace with hash 30048, 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 14:25:06,401 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:25:06,727 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:25:06,727 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 14:25:06,730 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 14:25:06,735 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 14:25:06,736 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 14:25:06,738 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-25 14:25:06,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:25:06,828 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2018-07-25 14:25:06,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 14:25:06,830 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-07-25 14:25:06,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:25:06,841 INFO L225 Difference]: With dead ends: 11 [2018-07-25 14:25:06,842 INFO L226 Difference]: Without dead ends: 5 [2018-07-25 14:25:06,845 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 14:25:06,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-25 14:25:06,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-25 14:25:06,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-25 14:25:06,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-25 14:25:06,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-07-25 14:25:06,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:25:06,878 INFO L472 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-25 14:25:06,879 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 14:25:06,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-25 14:25:06,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 14:25:06,879 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:25:06,880 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 14:25:06,880 INFO L415 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:25:06,880 INFO L82 PathProgramCache]: Analyzing trace with hash 927622, 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 14:25:06,895 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:25:07,363 WARN L169 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-07-25 14:25:08,837 WARN L169 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-07-25 14:25:09,180 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-07-25 14:25:10,734 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2018-07-25 14:25:12,136 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-07-25 14:25:16,960 WARN L169 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2018-07-25 14:25:35,521 WARN L169 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-07-25 14:26:56,730 WARN L169 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 125