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/openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 22:57:15,609 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 22:57:15,611 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 22:57:15,629 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 22:57:15,630 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 22:57:15,631 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 22:57:15,633 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 22:57:15,636 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 22:57:15,638 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 22:57:15,644 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 22:57:15,645 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-12 22:57:15,646 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-12 22:57:15,649 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-12 22:57:15,650 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-12 22:57:15,651 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-12 22:57:15,654 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-12 22:57:15,655 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-12 22:57:15,656 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-12 22:57:15,658 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-12 22:57:15,660 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-12 22:57:15,661 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-12 22:57:15,662 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-12 22:57:15,664 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-12 22:57:15,672 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 22:57:15,681 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 22:57:15,681 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 22:57:15,682 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 22:57:15,682 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 22:57:15,682 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 22:57:15,682 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 22:57:15,683 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 22:57:15,683 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 22:57:15,683 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 22:57:15,684 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 22:57:15,684 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 22:57:15,684 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 22:57:15,684 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 22:57:15,685 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 22:57:15,685 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 22:57:15,735 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 22:57:15,748 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 22:57:15,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 22:57:15,756 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 22:57:15,757 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 22:57:15,757 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl [2018-10-12 22:57:15,758 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl' [2018-10-12 22:57:15,834 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 22:57:15,836 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-12 22:57:15,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 22:57:15,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 22:57:15,838 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 22:57:15,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:15" (1/1) ... [2018-10-12 22:57:15,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:15" (1/1) ... [2018-10-12 22:57:15,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:15" (1/1) ... [2018-10-12 22:57:15,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:15" (1/1) ... [2018-10-12 22:57:15,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:15" (1/1) ... [2018-10-12 22:57:15,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:15" (1/1) ... [2018-10-12 22:57:15,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:15" (1/1) ... [2018-10-12 22:57:15,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 22:57:15,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 22:57:15,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 22:57:15,898 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 22:57:15,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:15" (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 22:57:15,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 22:57:15,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 22:57:15,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 22:57:16,529 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 22:57:16,530 INFO L202 PluginConnector]: Adding new model openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:57:16 BoogieIcfgContainer [2018-10-12 22:57:16,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 22:57:16,531 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-12 22:57:16,531 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-12 22:57:16,532 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-12 22:57:16,536 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:57:16" (1/1) ... [2018-10-12 22:57:16,545 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-12 22:57:16,545 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-12 22:57:16,581 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-12 22:57:16,626 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-12 22:57:16,642 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-12 22:57:16,715 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-12 22:57:19,238 INFO L315 AbstractInterpreter]: Visited 50 different actions 94 times. Merged at 17 different actions 42 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-12 22:57:19,240 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-12 22:57:19,246 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-12 22:57:19,306 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_7|) at (assume #memory_int == 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]];) [2018-10-12 22:57:19,309 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-12 22:57:19,310 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 22:57:19,311 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 22:57:19,311 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-12 22:57:19,311 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-12 22:57:19,311 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 22:57:19,312 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-12 22:57:19,312 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-12 22:57:19,312 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-12 22:57:19,312 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-12 22:57:19,312 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-10-12 22:57:19,313 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-12 22:57:19,314 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-12 22:57:19,314 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 0 [2018-10-12 22:57:19,314 INFO L248 HeapPartitionManager]: # location blocks :0 [2018-10-12 22:57:19,317 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-12 22:57:19,337 INFO L202 PluginConnector]: Adding new model openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 10:57:19 BasicIcfg [2018-10-12 22:57:19,338 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-12 22:57:19,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 22:57:19,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 22:57:19,344 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 22:57:19,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 10:57:15" (1/3) ... [2018-10-12 22:57:19,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6218a8 and model type openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:57:19, skipping insertion in model container [2018-10-12 22:57:19,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:57:16" (2/3) ... [2018-10-12 22:57:19,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6218a8 and model type openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:57:19, skipping insertion in model container [2018-10-12 22:57:19,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.10 10:57:19" (3/3) ... [2018-10-12 22:57:19,348 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-12 22:57:19,359 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 22:57:19,368 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 22:57:19,388 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 22:57:19,415 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 22:57:19,416 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 22:57:19,416 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 22:57:19,416 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 22:57:19,416 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 22:57:19,416 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 22:57:19,418 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 22:57:19,418 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 22:57:19,418 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 22:57:19,433 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-10-12 22:57:19,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-12 22:57:19,447 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:57:19,448 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] [2018-10-12 22:57:19,450 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:57:19,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:57:19,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1842937097, now seen corresponding path program 1 times [2018-10-12 22:57:19,526 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:57:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:57:20,908 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 22:57:20,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 22:57:20,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-12 22:57:20,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-12 22:57:20,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-12 22:57:20,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-10-12 22:57:20,932 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 13 states. [2018-10-12 22:57:22,124 WARN L178 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-10-12 22:57:22,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:57:22,460 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2018-10-12 22:57:22,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-12 22:57:22,462 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 42 [2018-10-12 22:57:22,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:57:22,473 INFO L225 Difference]: With dead ends: 71 [2018-10-12 22:57:22,473 INFO L226 Difference]: Without dead ends: 71 [2018-10-12 22:57:22,476 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2018-10-12 22:57:22,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-10-12 22:57:22,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 58. [2018-10-12 22:57:22,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-12 22:57:22,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-10-12 22:57:22,519 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 42 [2018-10-12 22:57:22,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:57:22,520 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-10-12 22:57:22,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-12 22:57:22,522 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-10-12 22:57:22,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-10-12 22:57:22,525 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:57:22,526 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 22:57:22,526 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:57:22,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:57:22,526 INFO L82 PathProgramCache]: Analyzing trace with hash -2099482168, now seen corresponding path program 1 times [2018-10-12 22:57:22,528 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:57:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:57:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 22:57:23,822 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 22:57:23,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-10-12 22:57:23,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-12 22:57:23,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-12 22:57:23,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2018-10-12 22:57:23,826 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 22 states. [2018-10-12 22:57:25,184 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-10-12 22:57:26,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:57:26,241 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-10-12 22:57:26,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-10-12 22:57:26,243 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 57 [2018-10-12 22:57:26,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:57:26,246 INFO L225 Difference]: With dead ends: 86 [2018-10-12 22:57:26,246 INFO L226 Difference]: Without dead ends: 86 [2018-10-12 22:57:26,248 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=455, Invalid=1525, Unknown=0, NotChecked=0, Total=1980 [2018-10-12 22:57:26,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-10-12 22:57:26,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 73. [2018-10-12 22:57:26,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-10-12 22:57:26,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2018-10-12 22:57:26,256 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 57 [2018-10-12 22:57:26,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:57:26,257 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2018-10-12 22:57:26,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-10-12 22:57:26,257 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-10-12 22:57:26,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-12 22:57:26,260 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:57:26,260 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2018-10-12 22:57:26,260 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:57:26,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:57:26,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1190356695, now seen corresponding path program 2 times [2018-10-12 22:57:26,262 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:57:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:57:27,037 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 22:57:27,037 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 22:57:27,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-10-12 22:57:27,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-12 22:57:27,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-12 22:57:27,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=642, Unknown=0, NotChecked=0, Total=702 [2018-10-12 22:57:27,039 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand 27 states. [2018-10-12 22:57:29,369 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2018-10-12 22:57:29,523 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-10-12 22:57:30,075 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-10-12 22:57:43,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:57:43,974 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2018-10-12 22:57:43,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-12 22:57:43,982 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 72 [2018-10-12 22:57:43,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:57:43,984 INFO L225 Difference]: With dead ends: 101 [2018-10-12 22:57:43,984 INFO L226 Difference]: Without dead ends: 101 [2018-10-12 22:57:43,988 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=617, Invalid=2575, Unknown=0, NotChecked=0, Total=3192 [2018-10-12 22:57:43,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-10-12 22:57:44,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 88. [2018-10-12 22:57:44,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-10-12 22:57:44,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2018-10-12 22:57:44,005 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 72 [2018-10-12 22:57:44,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:57:44,006 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2018-10-12 22:57:44,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-10-12 22:57:44,006 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2018-10-12 22:57:44,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-12 22:57:44,009 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 22:57:44,009 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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 22:57:44,009 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 22:57:44,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 22:57:44,012 INFO L82 PathProgramCache]: Analyzing trace with hash -452996632, now seen corresponding path program 3 times [2018-10-12 22:57:44,013 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 22:57:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 22:57:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 11 proven. 61 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-12 22:57:44,971 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 22:57:44,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-10-12 22:57:44,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-10-12 22:57:44,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-10-12 22:57:44,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=903, Unknown=0, NotChecked=0, Total=992 [2018-10-12 22:57:44,973 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 32 states. [2018-10-12 22:57:46,628 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-10-12 22:57:46,783 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2018-10-12 22:57:46,975 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-10-12 22:57:47,347 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-10-12 22:57:47,718 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2018-10-12 22:57:47,862 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2018-10-12 22:57:48,035 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2018-10-12 22:57:48,245 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2018-10-12 22:57:48,458 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2018-10-12 22:57:48,727 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-10-12 22:57:48,922 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2018-10-12 22:57:49,096 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2018-10-12 22:57:53,193 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2018-10-12 22:57:53,343 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2018-10-12 22:57:53,534 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2018-10-12 22:57:53,747 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2018-10-12 22:57:53,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 22:57:53,775 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-10-12 22:57:53,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-12 22:57:53,777 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 87 [2018-10-12 22:57:53,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 22:57:53,778 INFO L225 Difference]: With dead ends: 86 [2018-10-12 22:57:53,778 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 22:57:53,780 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=736, Invalid=3046, Unknown=0, NotChecked=0, Total=3782 [2018-10-12 22:57:53,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 22:57:53,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 22:57:53,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 22:57:53,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 22:57:53,781 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 87 [2018-10-12 22:57:53,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 22:57:53,781 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 22:57:53,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-10-12 22:57:53,782 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 22:57:53,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 22:57:53,786 INFO L202 PluginConnector]: Adding new model openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:57:53 BasicIcfg [2018-10-12 22:57:53,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 22:57:53,787 INFO L168 Benchmark]: Toolchain (without parser) took 37952.38 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: -308.5 MB). Peak memory consumption was 768.9 MB. Max. memory is 7.1 GB. [2018-10-12 22:57:53,789 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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 22:57:53,789 INFO L168 Benchmark]: Boogie Preprocessor took 59.68 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 22:57:53,790 INFO L168 Benchmark]: RCFGBuilder took 633.06 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 22:57:53,790 INFO L168 Benchmark]: IcfgTransformer took 2806.93 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 54.0 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 59.7 MB). Peak memory consumption was 113.7 MB. Max. memory is 7.1 GB. [2018-10-12 22:57:53,792 INFO L168 Benchmark]: TraceAbstraction took 34447.85 ms. Allocated memory was 1.6 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -389.3 MB). Peak memory consumption was 634.1 MB. Max. memory is 7.1 GB. [2018-10-12 22:57:53,796 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 0.19 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 59.68 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 633.06 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 2806.93 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 54.0 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 59.7 MB). Peak memory consumption was 113.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 34447.85 ms. Allocated memory was 1.6 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -389.3 MB). Peak memory consumption was 634.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 48 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 847 LocStat_NO_SUPPORTING_DISEQUALITIES : 58 LocStat_NO_DISJUNCTIONS : -96 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 50 TransStat_MAX_WEQGRAPH_SIZE : 3 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 50 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 50 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqPostOperator statistics APPLY_NORMAL(MILLISECONDS) : 1620.90 APPLY_RETURN(MILLISECONDS) : 0.00 #APPLY_NORMAL : 96 #APPLY_RETURN : 0 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: Abstract Interpretation statistics Visited 50 different actions 94 times. Merged at 17 different actions 42 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 : 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: 104]: 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, 50 locations, 1 error locations. SAFE Result, 34.3s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 29.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 169 SDtfs, 2033 SDslu, 1757 SDs, 0 SdLazy, 1828 SolverSat, 173 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 19.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1215 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=3, 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, 4 MinimizatonAttempts, 39 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 186513 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 14/120 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/openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-12_22-57-53-813.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-VPDomainBenchmark-0-2018-10-12_22-57-53-813.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i_5.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-BenchmarkWithCounters-0-2018-10-12_22-57-53-813.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...