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/20181010-MemSafetyPathprograms/ArraysOfVariableLength_true-valid-memsafety.c_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 22:34:25,471 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 22:34:25,473 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 22:34:25,486 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 22:34:25,486 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 22:34:25,487 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 22:34:25,488 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 22:34:25,490 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 22:34:25,492 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 22:34:25,493 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 22:34:25,494 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 22:34:25,495 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 22:34:25,496 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 22:34:25,497 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 22:34:25,498 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 22:34:25,499 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 22:34:25,500 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 22:34:25,502 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 22:34:25,504 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 22:34:25,506 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 22:34:25,507 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 22:34:25,509 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 22:34:25,511 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-12 22:34:25,521 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 22:34:25,531 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 22:34:25,531 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 22:34:25,532 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 22:34:25,533 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 22:34:25,533 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 22:34:25,533 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 22:34:25,534 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 22:34:25,534 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 22:34:25,534 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 22:34:25,535 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 22:34:25,535 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 22:34:25,535 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 22:34:25,535 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 22:34:25,536 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 22:34:25,536 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 22:34:25,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 22:34:25,600 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 22:34:25,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 22:34:25,606 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 22:34:25,607 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 22:34:25,608 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength_true-valid-memsafety.c_10.bpl [2018-10-12 22:34:25,608 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength_true-valid-memsafety.c_10.bpl' [2018-10-12 22:34:25,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 22:34:25,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-12 22:34:25,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 22:34:25,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 22:34:25,672 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 22:34:25,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:34:25" (1/1) ... [2018-10-12 22:34:25,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:34:25" (1/1) ... [2018-10-12 22:34:25,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:34:25" (1/1) ... [2018-10-12 22:34:25,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:34:25" (1/1) ... [2018-10-12 22:34:25,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:34:25" (1/1) ... [2018-10-12 22:34:25,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:34:25" (1/1) ... [2018-10-12 22:34:25,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:34:25" (1/1) ... [2018-10-12 22:34:25,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 22:34:25,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 22:34:25,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 22:34:25,742 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 22:34:25,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:34:25" (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 [2018-10-12 22:34:25,807 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 22:34:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 22:34:25,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 22:34:26,244 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 22:34:26,245 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:34:26 BoogieIcfgContainer [2018-10-12 22:34:26,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 22:34:26,246 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-12 22:34:26,246 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-12 22:34:26,247 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-12 22:34:26,251 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:34:26" (1/1) ... [2018-10-12 22:34:26,259 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-12 22:34:26,260 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-12 22:34:26,294 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-12 22:34:26,337 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-12 22:34:26,352 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-12 22:34:26,419 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-12 22:34:29,398 INFO L315 AbstractInterpreter]: Visited 47 different actions 91 times. Merged at 28 different actions 43 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-12 22:34:29,401 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-12 22:34:29,406 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-12 22:34:29,483 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-12 22:34:29,484 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 22:34:29,484 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 22:34:29,484 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 22:34:29,485 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-12 22:34:29,485 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 22:34:29,485 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-12 22:34:29,485 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-12 22:34:29,486 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 22:34:29,486 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 22:34:29,486 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-12 22:34:29,486 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-12 22:34:29,487 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 22:34:29,487 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-12 22:34:29,487 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-12 22:34:29,490 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-12 22:34:29,510 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 10:34:29 BasicIcfg [2018-10-12 22:34:29,511 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-12 22:34:29,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 22:34:29,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 22:34:29,517 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 22:34:29,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:34:25" (1/3) ... [2018-10-12 22:34:29,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4271d3e and model type ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:34:29, skipping insertion in model container [2018-10-12 22:34:29,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:34:26" (2/3) ... [2018-10-12 22:34:29,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4271d3e and model type ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:34:29, skipping insertion in model container [2018-10-12 22:34:29,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 10:34:29" (3/3) ... [2018-10-12 22:34:29,521 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-12 22:34:29,535 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 22:34:29,544 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 22:34:29,564 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 22:34:29,593 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 22:34:29,594 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 22:34:29,594 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 22:34:29,594 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 22:34:29,594 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 22:34:29,595 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 22:34:29,596 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 22:34:29,597 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 22:34:29,597 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 22:34:29,614 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-10-12 22:34:29,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-12 22:34:29,623 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:34:29,625 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] [2018-10-12 22:34:29,626 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:34:29,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:34:29,632 INFO L82 PathProgramCache]: Analyzing trace with hash -2123242348, now seen corresponding path program 1 times [2018-10-12 22:34:29,702 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:34:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:34:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 22:34:30,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 22:34:30,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-12 22:34:30,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-12 22:34:30,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-12 22:34:30,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-10-12 22:34:30,767 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 8 states. [2018-10-12 22:34:31,064 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-12 22:34:31,289 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-12 22:34:31,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:34:31,581 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2018-10-12 22:34:31,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-12 22:34:31,585 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2018-10-12 22:34:31,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:34:31,663 INFO L225 Difference]: With dead ends: 87 [2018-10-12 22:34:31,664 INFO L226 Difference]: Without dead ends: 87 [2018-10-12 22:34:31,666 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2018-10-12 22:34:31,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-10-12 22:34:31,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 63. [2018-10-12 22:34:31,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-10-12 22:34:31,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2018-10-12 22:34:31,714 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 36 [2018-10-12 22:34:31,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:34:31,715 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2018-10-12 22:34:31,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-12 22:34:31,715 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2018-10-12 22:34:31,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-12 22:34:31,719 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:34:31,720 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-12 22:34:31,720 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:34:31,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:34:31,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1446645669, now seen corresponding path program 1 times [2018-10-12 22:34:31,722 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:34:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:34:31,980 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 22:34:31,980 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 22:34:31,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-12 22:34:31,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-12 22:34:31,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-12 22:34:31,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-10-12 22:34:31,983 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 8 states. [2018-10-12 22:34:32,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:34:32,603 INFO L93 Difference]: Finished difference Result 54 states and 53 transitions. [2018-10-12 22:34:32,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-12 22:34:32,603 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2018-10-12 22:34:32,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:34:32,605 INFO L225 Difference]: With dead ends: 54 [2018-10-12 22:34:32,605 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 22:34:32,606 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-10-12 22:34:32,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 22:34:32,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 22:34:32,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 22:34:32,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 22:34:32,607 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-10-12 22:34:32,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:34:32,608 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 22:34:32,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-12 22:34:32,608 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 22:34:32,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 22:34:32,615 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:34:32 BasicIcfg [2018-10-12 22:34:32,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 22:34:32,616 INFO L168 Benchmark]: Toolchain (without parser) took 6946.86 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 831.0 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -827.4 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2018-10-12 22:34:32,618 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 22:34:32,620 INFO L168 Benchmark]: Boogie Preprocessor took 63.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 22:34:32,620 INFO L168 Benchmark]: RCFGBuilder took 504.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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. [2018-10-12 22:34:32,621 INFO L168 Benchmark]: IcfgTransformer took 3265.40 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 67.6 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 212.2 MB). Peak memory consumption was 279.9 MB. Max. memory is 7.1 GB. [2018-10-12 22:34:32,626 INFO L168 Benchmark]: TraceAbstraction took 3102.86 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 763.4 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 22:34:32,634 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 504.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 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 3265.40 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 67.6 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 212.2 MB). Peak memory consumption was 279.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3102.86 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 763.4 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). 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 : 850 LocStat_NO_SUPPORTING_DISEQUALITIES : 136 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 : 44 TransStat_NO_SUPPORTING_DISEQUALITIES : 1 TransStat_NO_DISJUNCTIONS : 47 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 1891.48 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 93 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 47 different actions 91 times. Merged at 28 different actions 43 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] : 0 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 : 2 COUNT_BLOCKS_for_[#memory_int, ULTIMATE.start_write~int_old_#memory_int]_at_dim_1 : 2 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: 102]: 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, 3.0s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 93 SDtfs, 335 SDslu, 256 SDs, 0 SdLazy, 96 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 17964 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 7/18 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/ArraysOfVariableLength_true-valid-memsafety.c_10.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-12_22-34-32-662.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_true-valid-memsafety.c_10.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-12_22-34-32-662.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_true-valid-memsafety.c_10.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-12_22-34-32-662.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...