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/gr2006.c.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 13:58:43,733 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 13:58:43,735 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 13:58:43,747 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 13:58:43,748 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 13:58:43,749 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 13:58:43,750 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 13:58:43,752 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 13:58:43,753 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 13:58:43,754 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 13:58:43,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 13:58:43,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 13:58:43,756 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 13:58:43,757 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 13:58:43,758 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 13:58:43,759 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 13:58:43,760 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 13:58:43,761 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 13:58:43,763 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 13:58:43,765 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 13:58:43,766 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 13:58:43,767 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 13:58:43,770 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 13:58:43,770 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 13:58:43,770 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 13:58:43,771 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 13:58:43,772 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 13:58:43,773 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 13:58:43,773 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 13:58:43,774 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 13:58:43,775 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 13:58:43,775 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 13:58:43,775 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 13:58:43,776 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 13:58:43,777 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 13:58:43,777 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 13:58:43,778 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 13:58:43,786 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 13:58:43,786 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 13:58:43,788 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 13:58:43,788 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 13:58:43,788 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 13:58:43,788 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 13:58:43,788 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 13:58:43,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 13:58:43,842 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 13:58:43,846 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 13:58:43,847 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 13:58:43,848 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 13:58:43,848 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gr2006.c.i_4.bpl [2018-07-25 13:58:43,848 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gr2006.c.i_4.bpl' [2018-07-25 13:58:43,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 13:58:43,898 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 13:58:43,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 13:58:43,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 13:58:43,899 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 13:58:43,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:58:43" (1/1) ... [2018-07-25 13:58:43,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:58:43" (1/1) ... [2018-07-25 13:58:43,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 13:58:43,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 13:58:43,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 13:58:43,939 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 13:58:43,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:58:43" (1/1) ... [2018-07-25 13:58:43,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:58:43" (1/1) ... [2018-07-25 13:58:43,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:58:43" (1/1) ... [2018-07-25 13:58:43,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:58:43" (1/1) ... [2018-07-25 13:58:43,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:58:43" (1/1) ... [2018-07-25 13:58:43,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:58:43" (1/1) ... [2018-07-25 13:58:43,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:58:43" (1/1) ... [2018-07-25 13:58:43,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 13:58:43,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 13:58:43,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 13:58:43,960 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 13:58:43,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:58:43" (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 13:58:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 13:58:44,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 13:58:44,424 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 13:58:44,424 INFO L202 PluginConnector]: Adding new model gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:58:44 BoogieIcfgContainer [2018-07-25 13:58:44,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 13:58:44,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 13:58:44,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 13:58:44,430 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 13:58:44,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:58:43" (1/2) ... [2018-07-25 13:58:44,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723182b6 and model type gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 01:58:44, skipping insertion in model container [2018-07-25 13:58:44,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "gr2006.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:58:44" (2/2) ... [2018-07-25 13:58:44,435 INFO L112 eAbstractionObserver]: Analyzing ICFG gr2006.c.i_4.bpl [2018-07-25 13:58:44,446 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 13:58:44,459 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 13:58:44,512 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 13:58:44,513 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 13:58:44,513 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 13:58:44,513 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 13:58:44,514 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 13:58:44,514 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 13:58:44,514 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 13:58:44,518 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 13:58:44,519 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 13:58:44,539 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 13:58:44,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 13:58:44,554 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:58:44,555 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 13:58:44,557 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:58:44,564 INFO L82 PathProgramCache]: Analyzing trace with hash 944090, 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 13:58:44,597 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:58:45,015 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:58:45,015 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 13:58:45,019 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 13:58:45,025 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 13:58:45,026 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-25 13:58:45,029 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-25 13:58:45,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:58:45,249 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-25 13:58:45,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 13:58:45,251 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-25 13:58:45,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:58:45,263 INFO L225 Difference]: With dead ends: 10 [2018-07-25 13:58:45,264 INFO L226 Difference]: Without dead ends: 7 [2018-07-25 13:58:45,267 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-25 13:58:45,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-25 13:58:45,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-25 13:58:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 13:58:45,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-25 13:58:45,304 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-25 13:58:45,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:58:45,304 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-25 13:58:45,304 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 13:58:45,305 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-25 13:58:45,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 13:58:45,305 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:58:45,305 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 13:58:45,306 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:58:45,306 INFO L82 PathProgramCache]: Analyzing trace with hash 907335265, 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 13:58:45,316 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:58:46,244 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-07-25 13:58:46,668 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2018-07-25 13:58:49,946 WARN L169 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 152 [2018-07-25 13:58:54,464 WARN L169 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2018-07-25 13:59:00,196 WARN L169 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2018-07-25 13:59:08,353 WARN L169 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 252 [2018-07-25 13:59:25,233 WARN L169 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 301 [2018-07-25 13:59:52,761 WARN L169 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2018-07-25 14:00:44,223 WARN L169 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2018-07-25 14:01:46,710 WARN L169 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 372 [2018-07-25 14:03:23,875 WARN L169 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 431 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown