java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplTransformed.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181015-LoopsPathprograms/array_true-unreach-call_true-termination.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2d08e6e [2018-10-15 12:55:21,473 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 12:55:21,474 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 12:55:21,487 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 12:55:21,487 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 12:55:21,488 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 12:55:21,490 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 12:55:21,491 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 12:55:21,493 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 12:55:21,494 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 12:55:21,495 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-15 12:55:21,495 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-15 12:55:21,496 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-15 12:55:21,497 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-15 12:55:21,498 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-15 12:55:21,499 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-15 12:55:21,500 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-15 12:55:21,502 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-15 12:55:21,504 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-15 12:55:21,506 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-15 12:55:21,507 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-15 12:55:21,508 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-15 12:55:21,511 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-15 12:55:21,511 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-15 12:55:21,511 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-15 12:55:21,512 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-15 12:55:21,513 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-15 12:55:21,514 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-15 12:55:21,515 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-15 12:55:21,516 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-15 12:55:21,516 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-15 12:55:21,517 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-15 12:55:21,520 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-15 12:55:21,530 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 12:55:21,530 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 12:55:21,531 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 12:55:21,532 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 12:55:21,532 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 12:55:21,532 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 12:55:21,533 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 12:55:21,533 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 12:55:21,533 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 12:55:21,534 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 12:55:21,534 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 12:55:21,534 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 12:55:21,534 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 12:55:21,535 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 12:55:21,535 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 12:55:21,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 12:55:21,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 12:55:21,624 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 12:55:21,625 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 12:55:21,626 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 12:55:21,627 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/array_true-unreach-call_true-termination.i_4.bpl [2018-10-15 12:55:21,627 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/array_true-unreach-call_true-termination.i_4.bpl' [2018-10-15 12:55:21,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 12:55:21,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-15 12:55:21,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 12:55:21,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 12:55:21,707 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 12:55:21,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:21" (1/1) ... [2018-10-15 12:55:21,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:21" (1/1) ... [2018-10-15 12:55:21,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:21" (1/1) ... [2018-10-15 12:55:21,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:21" (1/1) ... [2018-10-15 12:55:21,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:21" (1/1) ... [2018-10-15 12:55:21,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:21" (1/1) ... [2018-10-15 12:55:21,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:21" (1/1) ... [2018-10-15 12:55:21,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 12:55:21,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 12:55:21,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 12:55:21,760 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 12:55:21,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:21" (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 [2018-10-15 12:55:21,837 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-15 12:55:21,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 12:55:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 12:55:22,354 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 12:55:22,355 INFO L202 PluginConnector]: Adding new model array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:55:22 BoogieIcfgContainer [2018-10-15 12:55:22,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 12:55:22,356 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-15 12:55:22,356 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-15 12:55:22,357 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-15 12:55:22,362 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:55:22" (1/1) ... [2018-10-15 12:55:22,372 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-15 12:55:22,372 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-15 12:55:22,411 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-15 12:55:22,456 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-15 12:55:22,472 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-15 12:55:22,559 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-15 12:55:26,755 INFO L315 AbstractInterpreter]: Visited 47 different actions 95 times. Merged at 23 different actions 46 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-15 12:55:26,758 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-15 12:55:26,763 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-15 12:55:26,849 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select |v_#locv_ULTIMATE.start_write~int_old_#memory_int_2_1_1| |v_ULTIMATE.start_write~int_#ptr.base_2|) at (assume write~int_old_#memory_int[write~int_#ptr.base := write~int_old_#memory_int[write~int_#ptr.base][write~int_#ptr.offset := write~int_#value]] == #memory_int;) [2018-10-15 12:55:26,863 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select |#loc_#memory_int_(Array-Int-#locsort1)| |v_ULTIMATE.start_main_~#array~0.base_3|) at (main_#t~mem5 := #memory_int[main_~#array~0.base][main_~#array~0.offset];) [2018-10-15 12:55:26,863 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select (select |#loc_#memory_int_(Array-Int-(Array-Int-#locsort2))| |v_ULTIMATE.start_main_~#array~0.base_3|) |v_ULTIMATE.start_main_~#array~0.offset_3|) at (main_#t~mem5 := #memory_int[main_~#array~0.base][main_~#array~0.offset];) [2018-10-15 12:55:26,866 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-15 12:55:26,867 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-15 12:55:26,867 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-15 12:55:26,867 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-15 12:55:26,867 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-15 12:55:26,868 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-15 12:55:26,868 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-15 12:55:26,868 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-15 12:55:26,868 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-15 12:55:26,868 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-15 12:55:26,869 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-15 12:55:26,869 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-15 12:55:26,869 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-15 12:55:26,869 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-15 12:55:26,870 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-15 12:55:26,871 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-15 12:55:26,893 INFO L202 PluginConnector]: Adding new model array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 12:55:26 BasicIcfg [2018-10-15 12:55:26,893 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-15 12:55:26,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 12:55:26,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 12:55:26,900 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 12:55:26,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:21" (1/3) ... [2018-10-15 12:55:26,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185ed818 and model type array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:55:26, skipping insertion in model container [2018-10-15 12:55:26,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:55:22" (2/3) ... [2018-10-15 12:55:26,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185ed818 and model type array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:55:26, skipping insertion in model container [2018-10-15 12:55:26,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 12:55:26" (3/3) ... [2018-10-15 12:55:26,904 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-15 12:55:26,916 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 12:55:26,925 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 12:55:26,946 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 12:55:26,976 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 12:55:26,977 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 12:55:26,978 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 12:55:26,978 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 12:55:26,980 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 12:55:26,980 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 12:55:26,980 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 12:55:26,981 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 12:55:26,981 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 12:55:27,002 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-10-15 12:55:27,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-15 12:55:27,011 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:55:27,016 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:55:27,018 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:55:27,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:55:27,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2001826660, now seen corresponding path program 1 times [2018-10-15 12:55:27,095 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:55:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:55:27,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:55:27,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 12:55:27,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-15 12:55:27,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-15 12:55:27,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-15 12:55:27,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-15 12:55:27,653 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 5 states. [2018-10-15 12:55:28,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:55:28,006 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2018-10-15 12:55:28,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-15 12:55:28,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-10-15 12:55:28,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:55:28,021 INFO L225 Difference]: With dead ends: 60 [2018-10-15 12:55:28,021 INFO L226 Difference]: Without dead ends: 60 [2018-10-15 12:55:28,023 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-15 12:55:28,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-10-15 12:55:28,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 46. [2018-10-15 12:55:28,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-10-15 12:55:28,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-10-15 12:55:28,064 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 29 [2018-10-15 12:55:28,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:55:28,065 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-10-15 12:55:28,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-15 12:55:28,065 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-10-15 12:55:28,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-15 12:55:28,067 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:55:28,067 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:55:28,067 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:55:28,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:55:28,068 INFO L82 PathProgramCache]: Analyzing trace with hash -807653704, now seen corresponding path program 1 times [2018-10-15 12:55:28,069 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:55:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:55:28,867 WARN L179 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 11 [2018-10-15 12:55:29,596 WARN L179 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 28 [2018-10-15 12:55:30,001 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 28 [2018-10-15 12:55:30,380 WARN L179 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 28 [2018-10-15 12:55:30,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:55:30,562 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:55:30,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-10-15 12:55:30,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-15 12:55:30,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-15 12:55:30,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2018-10-15 12:55:30,565 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 15 states. [2018-10-15 12:55:31,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:55:31,463 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2018-10-15 12:55:31,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-15 12:55:31,464 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2018-10-15 12:55:31,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:55:31,465 INFO L225 Difference]: With dead ends: 55 [2018-10-15 12:55:31,465 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 12:55:31,467 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2018-10-15 12:55:31,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 12:55:31,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 12:55:31,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 12:55:31,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 12:55:31,468 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2018-10-15 12:55:31,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:55:31,468 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 12:55:31,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-15 12:55:31,468 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 12:55:31,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 12:55:31,473 INFO L202 PluginConnector]: Adding new model array_true-unreach-call_true-termination.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:55:31 BasicIcfg [2018-10-15 12:55:31,473 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 12:55:31,474 INFO L168 Benchmark]: Toolchain (without parser) took 9769.01 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -799.3 MB). Peak memory consumption was 203.2 MB. Max. memory is 7.1 GB. [2018-10-15 12:55:31,475 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 12:55:31,476 INFO L168 Benchmark]: Boogie Preprocessor took 52.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 12:55:31,476 INFO L168 Benchmark]: RCFGBuilder took 596.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-15 12:55:31,477 INFO L168 Benchmark]: IcfgTransformer took 4537.61 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 252.2 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -61.5 MB). Peak memory consumption was 190.7 MB. Max. memory is 7.1 GB. [2018-10-15 12:55:31,478 INFO L168 Benchmark]: TraceAbstraction took 4578.18 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 750.3 MB). Free memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: -758.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 12:55:31,483 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 596.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * IcfgTransformer took 4537.61 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 252.2 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -61.5 MB). Peak memory consumption was 190.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4578.18 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 750.3 MB). Free memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: -758.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 45 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 625 LocStat_NO_SUPPORTING_DISEQUALITIES : 90 LocStat_NO_DISJUNCTIONS : -90 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 47 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 37 TransStat_NO_SUPPORTING_DISEQUALITIES : 1 TransStat_NO_DISJUNCTIONS : 46 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 2719.47 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 95 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 47 different actions 95 times. Merged at 23 different actions 46 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int, ULTIMATE.start_write~int_old_#memory_int] : 2 COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_0 : null COUNT_ARRAY_WRITES_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 1 COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int, ULTIMATE.start_write~int_old_#memory_int] : null * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 95]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. SAFE Result, 4.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 72 SDtfs, 188 SDslu, 232 SDs, 0 SdLazy, 182 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 2 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 32572 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array_true-unreach-call_true-termination.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-15_12-55-31-499.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array_true-unreach-call_true-termination.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-15_12-55-31-499.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array_true-unreach-call_true-termination.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-15_12-55-31-499.csv The toolchain threw an exception: class java.lang.RuntimeException: java.lang.IllegalAccessException: Class de.uni_freiburg.informatik.ultimate.util.csv.SimpleCsvProvider can not access a member of class de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.AbsIntBenchmark with modifiers "private" RESULT: An exception occured during the execution of Ultimate: The toolchain threw an exception java.lang.RuntimeException: java.lang.IllegalAccessException: Class de.uni_freiburg.informatik.ultimate.util.csv.SimpleCsvProvider can not access a member of class de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.AbsIntBenchmark with modifiers "private" at de.uni_freiburg.informatik.ultimate.util.csv.SimpleCsvProvider.constructCsvProviderReflectively(SimpleCsvProvider.java:283) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.AbsIntBenchmark.createCsvProvider(AbsIntBenchmark.java:42) at de.uni_freiburg.informatik.ultimate.cli.CommandLineController.writeCsvLogs(CommandLineController.java:342) at de.uni_freiburg.informatik.ultimate.cli.CommandLineController.displayToolchainResults(CommandLineController.java:325) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:343) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalAccessException: Class de.uni_freiburg.informatik.ultimate.util.csv.SimpleCsvProvider can not access a member of class de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.AbsIntBenchmark with modifiers "private" at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:102) at java.lang.reflect.AccessibleObject.slowCheckMemberAccess(AccessibleObject.java:296) at java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:288) at java.lang.reflect.Field.get(Field.java:390) at de.uni_freiburg.informatik.ultimate.util.csv.SimpleCsvProvider.constructCsvProviderReflectively(SimpleCsvProvider.java:275) ... 6 more Received shutdown request...